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DataMuseum.dkPresents historical artifacts from the history of: CR80 Wang WCS documentation floppies |
This is an automatic "excavation" of a thematic subset of
See our Wiki for more about CR80 Wang WCS documentation floppies Excavated with: AutoArchaeologist - Free & Open Source Software. |
top - metrics - downloadIndex: 1 8 A S W ~
Length: 315392 (0x4d000)
Description: Bits:30006250 8" Wang WCS floppy, CR 0084A
Types: 8" Floppy Disk
| name | artifact | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1340A | Air Canada Proposal | Doc. III Chapter 5. | 08-10-81 15:15 | 06 | 439 | 15-04-82 15:15 | 01 | 4 | 08-01-82 10:21 | 29-04-82 10:21 | 0084A | 94 | 1 | 14 | 524 | 3933 | p | 1340A | ⟦a0466f047⟧ Wang Wps File, Air Canada Proposal | |||||
| 1341A | Air Canada Proposal | Doc.III Chap. 6.1-65 | 08-10-81 15:19 | 05 | 371 | 27-04-82 11:55 | 02 | 61 | 26-04-82 15:40 | 29-04-82 10:21 | 0084A | 55 | 19 | 884 | 506 | 1341A | ⟦7f7f0de28⟧ Wang Wps File, Air Canada Proposal | |||||||
| 1342A | Air Canada Proposal | Doc.III Chapter 6.6 | 08-10-81 15:23 | 03 | 189 | - - : | - - : | 21-04-82 10:16 | 0084A | 66 | 03 | 1252 | 189 | 1342A | ⟦dd560683c⟧ Wang Wps File, Air Canada Proposal | |||||||||
| 1343A | Air Canada Proposal | Doc.III Chapter 7+8 | 08-10-81 15:27 | 08 | 266 | 14-04-82 13:46 | 00 | 4 | 13-11-81 09:50 | 29-04-82 10:22 | 0084A | 47 | 11 | 516 | 390 | 0 | 1343A | ⟦d42782e4c⟧ Wang Wps File, Air Canada Proposal | ||||||
| ~ORPHAN01.03 | ⟦5e1979e8d⟧ Wang Wps File, Spelunked | |||||||||||||||||||||||
| ~ORPHAN14.14 | ⟦8acb51428⟧ Wang Wps File, Spelunked | |||||||||||||||||||||||
| ~ORPHAN15.07 | ⟦829d2795f⟧ Wang Wps File, Spelunked | |||||||||||||||||||||||
| ~ORPHAN36.10 | ⟦8728755ee⟧ Wang Wps File, Spelunked | |||||||||||||||||||||||
| 1343A | Air Canada Proposal | Doc.III Chapter 7+8 | 08-10-81 15:27 | 03 | 159 | - - : | - - : | 08-10-81 16:19 | 0084A | 47 | 03 | 588 | 159 | ~ORPHAN67.08 | ⟦b2609fcc8⟧ Wang Wps File, Spelunked |
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0x014c0…014e0 20 61 6e 20 41 69 72 20 43 61 6e 61 64 61 20 52 65 71 75 65 73 74 20 66 6f 72 20 49 6e 66 6f 72 ┆ an Air Canada Request for Infor┆
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0x01540…01560 65 74 79 20 69 6e 20 74 68 69 73 20 70 72 6f 70 6f 73 61 6c 20 61 73 20 41 4e 4e 45 58 20 45 2e ┆ety in this proposal as ANNEX E.┆
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0x24c80…24ca0 73 69 6f 6e 73 20 61 72 65 3a 03 04 2d 20 48 65 69 67 68 74 3a 04 32 31 35 30 20 6d 6d 20 03 03 ┆sions are: - Height: 2150 mm ┆
0x24ca0…24cc0 04 2d 20 57 69 64 74 68 3a 04 20 36 30 30 20 6d 6d 03 03 04 2d 20 44 65 70 74 68 3a 04 20 39 35 ┆ - Width: 600 mm - Depth: 95┆
0x24cc0…24ce0 30 20 6d 6d 03 03 04 54 68 65 20 61 63 74 75 61 6c 20 73 79 73 74 65 6d 20 64 69 6d 65 6e 73 69 ┆0 mm The actual system dimensi┆
0x24ce0…24d00 6f 6e 73 20 61 6e 64 20 6c 61 79 2d 6f 75 74 20 61 72 65 20 64 65 73 63 72 69 62 65 64 20 69 6e ┆ons and lay-out are described in┆
0x24d00…24d20 (36, 0, 13) 24 0e ff 00 13 43 41 20 73 65 63 74 69 6f 6e 20 33 2e 03 03 38 2e 34 2e 31 31 04 d0 ef f7 e5 f2 ┆$ CA section 3. 8.4.11 Power┆
0x24d20…24d40 a0 d3 f5 f0 f0 ec e9 e5 f3 20 03 03 04 54 68 65 20 65 71 75 69 70 6d 65 6e 74 20 69 73 20 61 73 ┆ Supplies The equipment is as┆
0x24d40…24d60 20 73 74 61 6e 64 61 72 64 20 64 65 73 69 67 6e 65 64 20 74 6f 20 62 65 20 66 65 64 20 66 72 6f ┆ standard designed to be fed fro┆
0x24d60…24d80 6d 20 32 32 30 56 20 41 43 20 73 6f 75 72 63 65 20 77 69 74 68 20 74 68 65 20 66 6f 6c 6c 6f 77 ┆m 220V AC source with the follow┆
0x24d80…24da0 69 6e 67 20 63 68 61 72 61 63 74 65 72 69 73 74 69 63 73 3a 03 03 04 56 6f 6c 74 61 67 65 3a 04 ┆ing characteristics: Voltage: ┆
0x24da0…24dc0 32 32 30 56 2c 20 2b 37 25 2c 20 2d 31 30 25 03 03 04 46 72 65 71 75 65 6e 63 79 3a 04 35 30 48 ┆220V, +7%, -10% Frequency: 50H┆
0x24dc0…24de0 7a 2c 20 2b 30 2e 35 25 2c 20 2d 31 2e 30 48 7a 03 03 04 4c 69 6d 69 74 73 20 6f 66 20 73 75 70 ┆z, +0.5%, -1.0Hz Limits of sup┆
0x24de0…24e00 65 72 69 6d 70 6f 73 65 64 20 69 6e 74 65 72 66 65 72 65 6e 63 65 20 76 6f 6c 74 61 67 65 20 77 ┆erimposed interference voltage w┆
0x24e00…24e20 (36, 0, 14) 24 0f 2b 00 13 43 41 69 6c 6c 20 62 65 20 61 73 20 64 65 73 63 72 69 62 65 64 20 65 61 72 6c 69 ┆$ + CAill be as described earli┆
0x24e20…24e40 65 72 20 69 6e 20 38 2e 33 2e 03 03 6c 65 6d 65 6e 74 69 6e 67 20 74 68 65 20 6d 6f 64 75 6c 65 ┆er in 8.3. lementing the module┆
0x24e40…24e60 73 27 20 66 75 6e 63 74 69 6f 6e 2e 03 03 38 2e 34 2e 35 04 d3 f9 f3 f4 e5 ed a0 cc e9 e6 e5 a0 ┆s' function. 8.4.5 System Life ┆
0x24e60…24e80 d4 e9 ed e5 03 03 04 41 73 20 6d 65 6e 74 69 6f 6e 65 64 20 61 62 6f 76 65 2c 20 74 68 65 20 6d ┆Time As mentioned above, the m┆
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0x24ea0…24ec0 64 20 74 6f 20 62 65 20 63 6f 6d 70 61 74 69 62 6c 65 20 77 69 74 68 20 61 20 73 65 74 20 6f 66 ┆d to be compatible with a set of┆
0x24ec0…24ee0 20 69 6e 74 65 72 66 61 63 65 20 73 70 65 63 69 66 69 63 61 74 69 6f 6e 73 20 77 68 69 63 68 20 ┆ interface specifications which ┆
0x24ee0…24f00 63 6f 76 65 72 73 20 6d 65 63 68 61 6e 69 63 61 6c 2c 20 65 6c 65 63 74 72 69 63 61 6c 2c 20 61 ┆covers mechanical, electrical, a┆
0x24f00…24f20 (36, 0, 15) 00 00 06 00 13 43 41 6e 64 20 66 75 6e 63 74 69 6f 6e 61 6c 20 69 6e 74 65 72 66 61 63 65 73 20 ┆ CAnd functional interfaces ┆
0x24f20…24f40 74 68 65 72 65 62 79 20 61 6c 6c 6f 77 69 6e 67 20 74 68 65 20 6d 6f 64 75 6c 65 73 20 74 6f 20 ┆thereby allowing the modules to ┆
0x24f40…24f60 62 65 20 63 68 61 6e 67 65 64 20 77 69 74 68 20 6d 6f 64 75 6c 65 73 20 6f 66 20 61 20 6e 65 77 ┆be changed with modules of a new┆
0x24f60…24f80 20 67 65 6e 65 72 61 74 69 6f 6e 20 77 69 74 68 6f 75 74 20 61 64 6a 75 73 74 6d 65 6e 74 73 20 ┆ generation without adjustments ┆
0x24f80…24fa0 61 6e 64 20 77 69 74 68 6f 75 74 20 61 66 66 65 63 74 69 6e 67 20 74 68 65 20 72 65 6d 61 69 6e ┆and without affecting the remain┆
0x24fa0…24fc0 69 6e 67 20 70 61 72 74 20 6f 66 20 74 68 65 20 73 79 73 74 65 6d 20 73 6f 66 74 2d 20 6f 72 20 ┆ing part of the system soft- or ┆
0x24fc0…24fe0 68 61 72 64 77 61 72 65 2e 03 03 04 42 79 20 75 73 69 6e 67 20 74 68 69 73 20 61 70 70 72 6f 61 ┆hardware. By using this approa┆
0x24fe0…25000 63 68 20 69 6e 20 74 68 65 20 63 6f 6d 70 6c 65 74 65 20 68 61 72 64 77 61 72 65 2c 20 63 65 6e ┆ch in the complete hardware, cen┆
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0x41000…41020 (65, 0, 0) 41 01 a2 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A " CA 1 ┆
0x41020…41040 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41040…41060 20 20 20 20 20 20 20 20 20 03 04 ce ef e4 e5 a0 c3 e8 e1 ee ee e5 ec a0 d5 ee e9 f4 a0 a3 a0 b2 ┆ Node Channel Unit # 2┆
0x41060…41080 20 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 04 ce ef ┆ No┆
0x41080…410a0 e4 e5 a0 c3 e8 e1 ee ee e5 ec a0 d5 ee e9 f4 a0 a3 a0 b3 a0 03 03 03 03 03 03 03 03 03 03 03 03 ┆de Channel Unit # 3 ┆
0x410a0…410c0 03 03 03 73 65 64 20 65 71 75 69 70 6d 65 6e 74 20 70 72 6f 76 69 64 65 73 20 74 68 65 20 68 69 ┆ sed equipment provides the hi┆
0x410c0…410e0 67 68 20 64 65 67 72 65 65 20 6f 66 20 72 65 6c 69 61 62 69 6c 69 74 79 20 72 65 71 75 69 72 65 ┆gh degree of reliability require┆
0x410e0…41100 64 2e 03 03 04 54 68 65 20 73 79 73 74 65 6d 20 72 65 6c 69 61 62 69 6c 69 74 79 20 63 68 61 72 ┆d. The system reliability char┆
0x41100…41120 (65, 0, 1) 41 02 96 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41120…41140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41140…41160 20 20 20 20 20 20 20 20 20 03 04 c5 cd c8 a0 c3 e8 e1 ee ee e5 ec a0 d5 ee e9 f4 03 03 03 03 03 ┆ EMH Channel Unit ┆
0x41160…41180 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 04 c7 d4 d9 a0 c3 e8 ┆ GTY Ch┆
0x41180…411a0 e1 ee ee e5 ec a0 d5 ee e9 f4 20 03 03 03 03 03 03 03 03 03 03 03 03 65 72 2e 20 54 68 65 20 73 ┆annel Unit er. The s┆
0x411a0…411c0 79 73 74 65 6d 20 6d 6f 64 65 6c 73 20 61 72 65 20 70 61 72 74 69 74 69 6f 6e 65 64 20 69 6e 74 ┆ystem models are partitioned int┆
0x411c0…411e0 6f 20 6d 6f 64 75 6c 61 72 20 75 6e 69 74 73 20 61 6e 64 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 ┆o modular units and system eleme┆
0x411e0…41200 6e 74 73 20 74 68 61 74 20 72 65 66 6c 65 63 74 20 74 68 65 20 72 65 64 75 6e 64 61 6e 63 79 20 ┆nts that reflect the redundancy ┆
0x41200…41220 (65, 0, 2) 41 03 86 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41220…41240 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41240…41260 20 20 20 20 20 20 20 20 20 03 04 ce c3 c3 a0 c3 e8 e1 ee ee e5 ec a0 d5 ee e9 f4 03 03 03 03 03 ┆ NCC Channel Unit ┆
0x41260…41280 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41280…412a0 03 03 03 03 03 03 03 73 65 64 20 69 6e 20 74 68 65 20 63 61 6c 63 75 6c 61 74 69 6f 6e 73 20 77 ┆ sed in the calculations w┆
0x412a0…412c0 65 72 65 20 6f 62 74 61 69 6e 65 64 20 66 72 6f 6d 20 65 78 70 65 72 69 65 6e 63 65 20 77 69 74 ┆ere obtained from experience wit┆
0x412c0…412e0 68 20 73 69 6d 69 6c 61 72 20 65 71 75 69 70 6d 65 6e 74 20 6f 6e 20 74 68 65 20 4e 49 43 53 2d ┆h similar equipment on the NICS-┆
0x412e0…41300 54 41 52 45 2c 46 49 4b 53 20 61 6e 64 20 43 41 4d 50 53 20 70 72 6f 67 72 61 6d 6d 65 73 2e 20 ┆TARE,FIKS and CAMPS programmes. ┆
0x41300…41320 (65, 0, 3) 41 04 8a 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41320…41340 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41340…41360 20 20 20 20 20 20 20 20 20 03 04 c6 c5 d0 a0 c3 e8 e1 ee ee e5 ec a0 d5 ee e9 f4 03 03 03 03 03 ┆ FEP Channel Unit ┆
0x41360…41380 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41380…413a0 03 03 03 03 03 03 03 03 03 03 03 20 66 75 6e 63 74 69 6f 6e 73 20 61 70 70 6f 72 74 69 6f 6e 65 ┆ functions apportione┆
0x413a0…413c0 64 20 73 6f 20 74 68 61 74 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 63 61 6e 20 68 61 ┆d so that system elements can ha┆
0x413c0…413e0 76 65 20 6f 6e 6c 79 20 74 77 6f 20 73 74 61 74 65 73 20 2d 20 6f 70 65 72 61 62 6c 65 20 6f 72 ┆ve only two states - operable or┆
0x413e0…41400 20 66 61 69 6c 65 64 2e 20 53 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 61 72 65 20 65 73 73 ┆ failed. System elements are ess┆
0x41400…41420 (65, 0, 4) 41 05 c6 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A F CA 1 ┆
0x41420…41440 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41440…41460 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 33 04 ce ef e4 e5 a0 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 ┆ 7.2.3 Node Reliability┆
0x41460…41480 03 03 04 53 68 6f 77 6e 20 69 6e 20 74 68 65 20 66 69 67 75 72 65 20 62 65 6c 6f 77 20 69 73 20 ┆ Shown in the figure below is ┆
0x41480…414a0 74 68 65 20 4e 6f 64 65 20 52 65 6c 69 61 62 69 6c 69 74 79 20 6d 6f 64 65 6c 03 03 03 03 03 03 ┆the Node Reliability model ┆
0x414a0…414c0 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x414c0…414e0 03 03 03 03 03 03 03 69 63 65 2e 20 4d 61 69 6e 74 65 6e 61 6e 63 65 20 61 6e 64 20 72 65 63 6f ┆ ice. Maintenance and reco┆
0x414e0…41500 6e 66 69 67 75 72 61 74 69 6f 6e 20 69 73 20 70 6f 73 73 69 62 6c 65 20 77 69 74 68 6f 75 74 20 ┆nfiguration is possible without ┆
0x41500…41520 (65, 0, 5) 41 06 c2 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A B CA 1 ┆
0x41520…41540 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41540…41560 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 34 04 c5 cd c8 a0 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 03 ┆ 7.2.4 EMH Reliability ┆
0x41560…41580 03 04 49 6e 20 74 68 65 20 66 69 67 75 72 65 20 62 65 6c 6f 77 20 74 68 65 20 72 65 6c 69 61 62 ┆ In the figure below the reliab┆
0x41580…415a0 69 6c 69 74 79 20 66 6f 72 20 74 68 65 20 45 4d 48 20 69 73 20 73 68 6f 77 6e 2e 03 03 03 03 03 ┆ility for the EMH is shown. ┆
0x415a0…415c0 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x415c0…415e0 03 03 03 6d 69 6e 61 6c 20 69 6e 20 74 68 65 20 62 61 63 6b 62 6f 6e 65 20 6e 65 74 77 6f 72 6b ┆ minal in the backbone network┆
0x415e0…41600 2e 20 54 68 65 20 61 63 63 65 73 73 20 74 6f 20 74 68 65 20 4e 4d 48 20 69 73 20 63 6f 6e 74 72 ┆. The access to the NMH is contr┆
0x41600…41620 (65, 0, 6) 41 07 d3 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A S CA 1 ┆
0x41620…41640 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41640…41660 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 35 04 c7 d4 d7 a0 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 03 ┆ 7.2.5 GTW Reliability ┆
0x41660…41680 03 04 49 6e 20 74 68 65 20 66 69 67 75 72 65 20 62 65 6c 6f 77 20 74 68 65 20 72 65 6c 69 61 62 ┆ In the figure below the reliab┆
0x41680…416a0 69 6c 69 74 79 20 66 6f 72 20 74 68 65 20 47 61 74 65 77 61 79 20 50 72 6f 63 65 73 73 6f 72 20 ┆ility for the Gateway Processor ┆
0x416a0…416c0 69 73 20 73 68 6f 77 6e 2e 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆is shown. ┆
0x416c0…416e0 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 62 74 61 69 6e 65 64 20 66 72 6f 6d ┆ btained from┆
0x416e0…41700 20 65 78 70 65 72 69 65 6e 63 65 20 66 72 6f 6d 20 70 72 65 76 69 6f 75 73 20 70 72 6f 67 72 61 ┆ experience from previous progra┆
0x41700…41720 (65, 0, 7) 40 08 cd 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆@ M CA 1 ┆
0x41720…41740 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41740…41760 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 36 04 d3 e9 f4 e5 a0 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 ┆ 7.2.6 Site Reliability┆
0x41760…41780 03 03 04 49 6e 20 74 68 65 20 66 69 67 75 72 65 73 20 62 65 6c 6f 77 20 74 68 65 20 72 65 6c 69 ┆ In the figures below the reli┆
0x41780…417a0 61 62 69 6c 69 74 79 20 6d 6f 64 65 6c 73 20 66 6f 72 20 74 68 65 20 73 69 74 65 73 20 61 72 65 ┆ability models for the sites are┆
0x417a0…417c0 20 73 68 6f 77 6e 2e 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ shown. ┆
0x417c0…417e0 03 03 03 03 03 03 03 03 03 03 03 03 03 03 6f 6e 20 74 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 70 ┆ on the following p┆
0x417e0…41800 61 67 65 73 2e 03 61 79 20 62 65 20 63 75 73 74 6f 6d 69 73 65 64 20 74 6f 20 74 68 65 20 61 63 ┆ages. ay be customised to the ac┆
0x41800…41820 (65, 0, 8) 41 09 ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41820…41840 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41840…41860 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 31 04 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 a0 cd ef e4 e5 ┆ 7.2.1 Reliability Mode┆
0x41860…41880 ec f3 a0 e6 ef f2 a0 d0 d5 a7 f3 20 03 03 04 54 68 65 20 72 65 6c 61 69 62 69 6c 69 74 79 20 6d ┆ls for PU's The relaibility m┆
0x41880…418a0 6f 64 65 6c 73 20 4d 54 42 46 20 61 6e 64 20 61 76 61 69 6c 61 62 69 6c 69 74 79 20 70 72 65 64 ┆odels MTBF and availability pred┆
0x418a0…418c0 69 63 74 69 6f 6e 73 20 66 6f 72 20 74 68 65 20 50 72 6f 63 65 73 73 69 6e 67 20 55 6e 69 74 73 ┆ictions for the Processing Units┆
0x418c0…418e0 20 61 72 65 20 73 68 6f 77 6e 20 69 6e 20 74 68 65 20 66 69 67 75 72 65 20 62 65 6c 6f 77 3a 03 ┆ are shown in the figure below: ┆
0x418e0…41900 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 01 ce cf c4 c5 a0 d0 d2 cf c3 c5 d3 d3 cf d2 ┆ NODE PROCESSOR┆
0x41900…41920 (65, 0, 9) 41 0a 32 00 13 43 41 a0 d5 ce c9 d4 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆A 2 CA UNIT ┆
0x41920…41940 03 03 01 46 69 67 2e 49 49 49 20 37 2e 32 2e 31 2d 31 03 69 63 65 73 20 69 73 20 6c 6f 77 65 72 ┆ Fig.III 7.2.1-1 ices is lower┆
0x41940…41960 20 74 68 61 6e 20 74 68 61 74 20 6f 66 20 74 68 65 20 61 73 73 6f 63 69 61 74 65 64 20 43 52 38 ┆ than that of the associated CR8┆
0x41960…41980 30 20 64 65 76 69 63 65 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 2e 20 54 68 69 73 20 61 70 70 6c 69 ┆0 device controllers. This appli┆
0x41980…419a0 65 73 20 65 71 75 61 6c 6c 79 20 77 65 6c 6c 20 74 6f 20 63 6f 6d 6d 75 6e 69 63 61 74 69 6f 6e ┆es equally well to communication┆
0x419a0…419c0 20 6c 69 6e 65 73 20 77 68 65 72 65 20 6d 6f 64 65 6d 73 20 61 72 65 20 75 73 65 64 20 61 73 20 ┆ lines where modems are used as ┆
0x419c0…419e0 70 61 72 74 20 6f 66 20 74 68 65 20 74 72 61 6e 73 6d 69 73 73 69 6f 6e 20 6d 65 64 69 61 2e 20 ┆part of the transmission media. ┆
0x419e0…41a00 54 68 75 73 2c 20 74 68 65 20 70 65 72 69 70 68 65 72 61 6c 20 64 65 76 69 63 65 73 20 2c 20 6d ┆Thus, the peripheral devices , m┆
0x41a00…41a20 (65, 0, 10) 41 0b 9a 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41a20…41a40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41a40…41a60 20 20 20 20 20 20 20 20 20 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41a60…41a80 01 ce cd c8 a0 d0 d2 cf c3 c5 d3 d3 cf d2 a0 d5 ce c9 d4 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ NMH PROCESSOR UNIT ┆
0x41a80…41aa0 03 03 03 03 03 03 03 03 03 03 01 46 69 67 2e 49 49 49 20 37 2e 32 2e 31 2d 32 03 69 6f 6e 20 6c ┆ Fig.III 7.2.1-2 ion l┆
0x41aa0…41ac0 69 6e 65 73 2c 20 74 68 65 20 43 52 38 30 20 43 55 27 73 20 75 74 69 6c 69 73 65 73 20 6e 20 6f ┆ines, the CR80 CU's utilises n o┆
0x41ac0…41ae0 75 74 20 6f 66 20 6e 2b 31 20 4c 54 55 27 73 20 61 6e 64 20 6e 20 4c 49 41 2d 53 27 73 20 74 6f ┆ut of n+1 LTU's and n LIA-S's to┆
0x41ae0…41b00 20 61 63 68 69 65 76 65 20 74 68 65 20 68 69 67 68 65 73 74 20 70 6f 73 73 69 62 6c 65 20 61 76 ┆ achieve the highest possible av┆
0x41b00…41b20 (65, 0, 11) 41 0c a4 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A $ CA 1 ┆
0x41b20…41b40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41b40…41b60 20 20 20 20 20 20 20 20 20 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41b60…41b80 03 01 ce c3 c3 a0 a6 a0 c7 c1 d4 c5 d7 c1 d9 a0 d0 d2 cf c3 c5 d3 d3 cf d2 a0 d5 ce c9 d4 03 03 ┆ NCC & GATEWAY PROCESSOR UNIT ┆
0x41b80…41ba0 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 01 46 69 67 2e 20 49 49 49 20 37 2e 32 ┆ Fig. III 7.2┆
0x41ba0…41bc0 2e 31 2d 33 03 65 20 61 70 70 72 6f 70 72 69 61 74 65 20 4c 49 41 2d 53 2e 03 03 04 54 6f 20 61 ┆.1-3 e appropriate LIA-S. To a┆
0x41bc0…41be0 73 73 75 72 65 20 74 68 69 73 20 76 65 72 79 20 68 69 67 68 6c 79 20 72 65 6c 69 61 62 6c 65 20 ┆ssure this very highly reliable ┆
0x41be0…41c00 70 72 6f 64 75 63 74 2c 20 73 65 76 65 72 61 6c 20 63 72 69 74 65 72 69 61 73 20 77 65 72 65 20 ┆product, several criterias were ┆
0x41c00…41c20 (65, 0, 12) 41 0d 9b 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41c20…41c40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41c40…41c60 20 20 20 20 20 20 20 20 20 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41c60…41c80 01 c5 cd c8 a0 d0 d2 cf c3 c5 d3 d3 cf d2 a0 d5 ce c9 d4 20 03 03 03 03 03 03 03 03 03 03 03 03 ┆ EMH PROCESSOR UNIT ┆
0x41c80…41ca0 03 03 03 03 03 03 03 03 03 03 01 46 69 67 2e 20 49 49 49 20 37 2e 32 2e 31 2d 34 03 20 73 69 6d ┆ Fig. III 7.2.1-4 sim┆
0x41ca0…41cc0 69 6c 61 72 2e 03 6a cd 01 28 2a a8 3d 7e 0f 1f d2 bb 2f 21 af 3d 36 6e cd 01 28 2a a8 3d 7e 0f ┆ilar. jM (*(=~ R;/!/=6nM (*(=~ ┆
0x41cc0…41ce0 0f 1f d2 cd 2f 21 af 3d 36 69 cd 01 28 2a a8 3d 7e 0f 0f 0f 1f d2 e0 2f 21 af 3d 36 57 cd 01 28 ┆ RM/!/=6iM (*(=~ R`/!/=6WM (┆
0x41ce0…41d00 2a a8 3d 7e 0f 0f 0f 0f 1f d2 f4 2f 21 af 3d 36 6c cd 01 28 2a a8 3d 7e 0f 0f 0f 0f 0f 1f d2 09 ┆*(=~ Rt/!/=6lM (*(=~ R ┆
0x41d00…41d20 (65, 0, 13) 41 0e ae 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A . CA 1 ┆
0x41d20…41d40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41d40…41d60 20 20 20 20 20 20 20 20 20 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆ ┆
0x41d60…41d80 01 c6 c5 d0 a0 d0 d2 cf c3 c5 d3 d3 cf d2 a0 d5 ce c9 d4 a0 a8 cd c1 d8 a0 c3 cf ce c6 c9 c7 d5 ┆ FEP PROCESSOR UNIT (MAX CONFIGU┆
0x41d80…41da0 d2 c1 d4 c9 cf ce a9 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 01 46 69 ┆RATION) Fi┆
0x41da0…41dc0 67 2e 20 49 49 49 20 37 2e 32 2e 31 2d 35 03 65 72 61 74 69 6e 67 20 73 70 65 63 69 66 69 63 61 ┆g. III 7.2.1-5 erating specifica┆
0x41dc0…41de0 74 69 6f 6e 73 2c 20 77 68 69 63 68 20 67 72 65 61 74 6c 79 20 65 6e 68 61 6e 63 65 20 74 68 65 ┆tions, which greatly enhance the┆
0x41de0…41e00 20 72 65 6c 69 61 62 69 6c 69 74 79 20 61 6e 64 20 72 65 64 75 63 65 20 74 68 65 20 73 65 6e 73 ┆ reliability and reduce the sens┆
0x41e00…41e20 (65, 0, 14) 41 0f ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆A CA 1 ┆
0x41e20…41e40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x41e40…41e60 20 20 20 20 20 20 20 20 20 03 37 2e 32 2e 32 04 d2 e5 ec e9 e1 e2 e9 ec e9 f4 f9 a0 cd ef e4 e5 ┆ 7.2.2 Reliability Mode┆
0x41e60…41e80 ec f3 a0 e6 ef f2 a0 c3 d5 a7 f3 20 03 03 04 54 68 65 20 72 65 6c 69 61 62 69 6c 69 74 79 20 6d ┆ls for CU's The reliability m┆
0x41e80…41ea0 6f 64 65 6c 73 2c 20 4d 54 42 46 20 61 6e 64 20 61 76 61 69 6c 61 62 69 6c 69 74 79 20 66 6f 72 ┆odels, MTBF and availability for┆
0x41ea0…41ec0 20 74 68 65 20 63 68 61 6e 6e 65 6c 20 75 6e 69 74 73 20 61 72 65 20 73 68 6f 77 6e 20 69 6e 20 ┆ the channel units are shown in ┆
0x41ec0…41ee0 74 68 65 20 66 69 67 75 72 65 73 20 62 65 6c 6f 77 2e 03 03 04 ce ef e4 e5 a0 c3 e8 e1 ee ee e5 ┆the figures below. Node Channe┆
0x41ee0…41f00 ec a0 d5 ee e9 f4 a0 a3 a0 b1 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ┆l Unit # 1 ┆
0x41f00…41f20 (65, 0, 15) 41 00 17 00 13 43 41 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 65 62 75 67 20 61 6e 64 ┆A CA ebug and┆
0x41f20…41f40 20 74 72 6f 75 62 6c 65 20 73 68 6f 6f 74 69 6e 67 20 6d 65 74 68 6f 64 73 2c 20 77 68 69 63 68 ┆ trouble shooting methods, which┆
0x41f40…41f60 20 72 65 64 75 63 65 20 74 68 65 20 72 65 70 61 69 72 20 74 69 6d 65 2e 03 03 04 04 41 20 68 69 ┆ reduce the repair time. A hi┆
0x41f60…41f80 67 68 20 71 75 61 6c 69 74 79 20 70 72 6f 64 75 63 74 69 6f 6e 20 6c 69 6e 65 2c 20 77 68 69 63 ┆gh quality production line, whic┆
0x41f80…41fa0 68 20 69 6e 63 6c 75 64 65 73 20 68 69 67 68 20 71 75 61 6c 69 74 79 20 73 6f 6c 64 65 72 69 6e ┆h includes high quality solderin┆
0x41fa0…41fc0 67 2c 20 69 6e 73 70 65 63 74 69 6f 6e 2c 20 62 75 72 6e 2d 69 6e 20 61 6e 64 20 61 6e 20 65 78 ┆g, inspection, burn-in and an ex┆
0x41fc0…41fe0 74 65 6e 73 69 76 65 20 61 75 74 6f 6d 61 74 69 63 20 66 75 6e 63 74 69 6f 6e 61 6c 20 74 65 73 ┆tensive automatic functional tes┆
0x41fe0…42000 74 2e 03 03 03 37 2e 32 04 d2 c5 cc c9 c1 c2 c9 cc c9 d4 d9 a0 cd cf c4 c5 cc d3 a0 c1 ce c4 a0 ┆t. 7.2 RELIABILITY MODELS AND ┆
0x42000…42020 (66, 0, 0) 42 01 ff 00 13 43 41 c2 cc cf c3 cb a0 a0 c4 c9 c1 c7 d2 c1 cd d3 03 03 04 54 68 65 20 63 6f 6d ┆B CABLOCK DIAGRAMS The com┆
0x42020…42040 70 75 74 65 72 20 73 79 73 74 65 6d 20 69 73 20 70 61 72 74 69 74 69 6f 6e 65 64 20 69 6e 74 6f ┆puter system is partitioned into┆
0x42040…42060 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 61 6e 64 20 74 68 65 20 6d 6f 64 65 6c 73 20 ┆ system elements and the models ┆
0x42060…42080 75 73 65 64 20 66 6f 72 20 72 65 6c 61 69 62 69 6c 69 74 79 20 61 6e 64 20 61 76 61 69 6c 61 62 ┆used for relaibility and availab┆
0x42080…420a0 69 6c 74 79 20 70 72 65 64 69 63 74 69 6f 6e 73 20 73 68 6f 77 20 68 6f 77 20 74 68 65 20 70 72 ┆ilty predictions show how the pr┆
0x420a0…420c0 6f 70 6f 73 65 64 20 65 71 75 69 70 6d 65 6e 74 20 70 72 6f 76 69 64 65 73 20 74 68 65 20 68 69 ┆oposed equipment provides the hi┆
0x420c0…420e0 67 68 20 64 65 67 72 65 65 20 6f 66 20 72 65 6c 69 61 62 69 6c 69 74 79 20 72 65 71 75 69 72 65 ┆gh degree of reliability require┆
0x420e0…42100 64 2e 03 03 04 54 68 65 20 73 79 73 74 65 6d 20 72 65 6c 69 61 62 69 6c 69 74 79 20 63 68 61 72 ┆d. The system reliability char┆
0x42100…42120 (66, 0, 1) 42 02 ff 00 13 43 41 61 63 74 65 72 69 73 74 69 63 73 20 66 6f 72 20 74 68 65 20 73 79 73 74 65 ┆B CAacteristics for the syste┆
0x42120…42140 6d 20 61 72 65 20 73 74 61 74 65 64 20 69 6e 20 6e 75 6d 65 72 69 63 61 6c 20 74 65 72 6d 73 20 ┆m are stated in numerical terms ┆
0x42140…42160 62 79 20 6d 61 74 68 65 6d 61 74 69 63 61 6c 20 6d 6f 64 65 6c 73 3b 20 74 68 65 20 73 75 70 70 ┆by mathematical models; the supp┆
0x42160…42180 6f 72 74 69 6e 67 20 64 65 74 61 69 6c 65 64 20 70 72 65 64 69 63 74 69 6f 6e 73 20 61 72 65 20 ┆orting detailed predictions are ┆
0x42180…421a0 70 72 65 73 65 6e 74 65 64 20 69 6e 20 74 68 69 73 20 63 68 61 70 74 65 72 2e 20 54 68 65 20 73 ┆presented in this chapter. The s┆
0x421a0…421c0 79 73 74 65 6d 20 6d 6f 64 65 6c 73 20 61 72 65 20 70 61 72 74 69 74 69 6f 6e 65 64 20 69 6e 74 ┆ystem models are partitioned int┆
0x421c0…421e0 6f 20 6d 6f 64 75 6c 61 72 20 75 6e 69 74 73 20 61 6e 64 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 ┆o modular units and system eleme┆
0x421e0…42200 6e 74 73 20 74 68 61 74 20 72 65 66 6c 65 63 74 20 74 68 65 20 72 65 64 75 6e 64 61 6e 63 79 20 ┆nts that reflect the redundancy ┆
0x42200…42220 (66, 0, 2) 42 03 ff 00 13 43 41 6f 66 20 74 68 65 20 63 6f 6e 66 69 67 75 72 61 74 69 6f 6e 3b 20 69 74 20 ┆B CAof the configuration; it ┆
0x42220…42240 61 63 63 6f 75 6e 74 73 20 66 6f 72 20 61 6c 6c 20 69 6e 74 65 72 63 6f 6e 6e 65 63 74 69 6f 6e ┆accounts for all interconnection┆
0x42240…42260 73 20 61 6e 64 20 73 77 69 74 63 68 69 6e 67 20 70 6f 69 6e 74 73 2e 20 54 68 65 20 4d 54 42 46 ┆s and switching points. The MTBF┆
0x42260…42280 20 61 6e 64 20 4d 54 54 52 20 66 6f 72 20 74 68 65 20 69 6e 64 69 76 69 64 75 61 6c 20 65 6c 65 ┆ and MTTR for the individual ele┆
0x42280…422a0 6d 65 6e 74 73 20 75 73 65 64 20 69 6e 20 74 68 65 20 63 61 6c 63 75 6c 61 74 69 6f 6e 73 20 77 ┆ments used in the calculations w┆
0x422a0…422c0 65 72 65 20 6f 62 74 61 69 6e 65 64 20 66 72 6f 6d 20 65 78 70 65 72 69 65 6e 63 65 20 77 69 74 ┆ere obtained from experience wit┆
0x422c0…422e0 68 20 73 69 6d 69 6c 61 72 20 65 71 75 69 70 6d 65 6e 74 20 6f 6e 20 74 68 65 20 4e 49 43 53 2d ┆h similar equipment on the NICS-┆
0x422e0…42300 54 41 52 45 2c 46 49 4b 53 20 61 6e 64 20 43 41 4d 50 53 20 70 72 6f 67 72 61 6d 6d 65 73 2e 20 ┆TARE,FIKS and CAMPS programmes. ┆
0x42300…42320 (66, 0, 3) 42 04 ff 00 13 43 41 54 68 65 20 66 69 67 75 72 65 73 20 71 75 6f 74 65 64 20 6f 6e 20 70 65 72 ┆B CAThe figures quoted on per┆
0x42320…42340 69 70 68 65 72 61 6c 20 65 71 75 69 70 6d 65 6e 74 20 61 72 65 20 62 61 73 65 64 20 6f 6e 20 64 ┆ipheral equipment are based on d┆
0x42340…42360 61 74 61 20 73 75 70 70 6c 69 65 64 20 62 79 20 74 68 65 20 6d 61 6e 75 66 61 63 74 75 72 65 72 ┆ata supplied by the manufacturer┆
0x42360…42380 73 2e 03 03 04 54 68 65 20 65 71 75 69 70 6d 65 6e 74 20 68 61 73 20 62 65 65 6e 20 70 61 72 74 ┆s. The equipment has been part┆
0x42380…423a0 69 74 69 6f 6e 65 64 20 61 6e 64 20 66 75 6e 63 74 69 6f 6e 73 20 61 70 70 6f 72 74 69 6f 6e 65 ┆itioned and functions apportione┆
0x423a0…423c0 64 20 73 6f 20 74 68 61 74 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 63 61 6e 20 68 61 ┆d so that system elements can ha┆
0x423c0…423e0 76 65 20 6f 6e 6c 79 20 74 77 6f 20 73 74 61 74 65 73 20 2d 20 6f 70 65 72 61 62 6c 65 20 6f 72 ┆ve only two states - operable or┆
0x423e0…42400 20 66 61 69 6c 65 64 2e 20 53 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 61 72 65 20 65 73 73 ┆ failed. System elements are ess┆
0x42400…42420 (66, 0, 4) 42 05 ff 00 13 43 41 65 6e 74 69 61 6c 6c 79 20 73 74 61 6e 64 2d 61 6c 6f 6e 65 20 61 6e 64 20 ┆B CAentially stand-alone and ┆
0x42420…42440 66 72 65 65 20 6f 66 20 63 68 61 69 6e 20 66 61 69 6c 75 72 65 73 2e 03 03 04 43 61 72 65 66 75 ┆free of chain failures. Carefu┆
0x42440…42460 6c 20 61 74 74 65 6e 74 69 6f 6e 20 68 61 73 20 62 65 65 6e 20 70 61 69 64 20 69 6e 20 74 68 65 ┆l attention has been paid in the┆
0x42460…42480 20 64 65 73 69 67 6e 20 74 6f 20 65 6c 69 6d 69 6e 61 74 65 20 73 65 72 69 65 73 20 72 69 73 6b ┆ design to eliminate series risk┆
0x42480…424a0 20 65 6c 65 6d 65 6e 74 73 2e 20 52 65 64 75 6e 64 61 6e 74 73 20 75 6e 69 74 73 20 61 72 65 20 ┆ elements. Redundants units are ┆
0x424a0…424c0 72 65 70 61 69 72 61 62 6c 65 20 77 69 74 68 6f 75 74 20 69 6e 74 65 72 72 75 70 74 69 6f 6e 20 ┆repairable without interruption ┆
0x424c0…424e0 6f 66 20 73 65 72 76 69 63 65 2e 20 4d 61 69 6e 74 65 6e 61 6e 63 65 20 61 6e 64 20 72 65 63 6f ┆of service. Maintenance and reco┆
0x424e0…42500 6e 66 69 67 75 72 61 74 69 6f 6e 20 69 73 20 70 6f 73 73 69 62 6c 65 20 77 69 74 68 6f 75 74 20 ┆nfiguration is possible without ┆
0x42500…42520 (66, 0, 5) 42 06 26 00 13 43 41 63 6f 6d 70 72 6f 6d 69 73 69 6e 67 20 73 79 73 74 65 6d 20 70 65 72 66 6f ┆B & CAcompromising system perfo┆
0x42520…42540 72 6d 61 6e 63 65 2e 6e 64 20 72 65 70 61 69 72 20 74 69 6d 65 20 4d 54 54 52 2e 03 74 68 65 20 ┆rmance.nd repair time MTTR. the ┆
0x42540…42560 73 74 61 6e 64 61 72 64 20 73 6f 66 74 77 61 72 65 20 75 74 69 6c 69 74 79 20 70 61 63 6b 61 67 ┆standard software utility packag┆
0x42560…42580 65 2e 03 03 65 72 6d 69 6e 61 6c 20 50 72 6f 74 6f 63 6f 6c 22 20 64 65 73 63 72 69 62 65 64 20 ┆e. erminal Protocol" described ┆
0x42580…425a0 69 6e 20 73 65 63 74 69 6f 6e 20 36 2e 36 2e 03 03 04 54 68 75 73 20 74 68 65 20 4e 4d 48 20 69 ┆in section 6.6. Thus the NMH i┆
0x425a0…425c0 73 20 61 62 6c 65 20 74 6f 20 73 65 72 76 65 20 61 6e 79 20 75 73 65 72 20 61 74 20 61 6e 79 20 ┆s able to serve any user at any ┆
0x425c0…425e0 74 65 72 6d 69 6e 61 6c 20 69 6e 20 74 68 65 20 62 61 63 6b 62 6f 6e 65 20 6e 65 74 77 6f 72 6b ┆terminal in the backbone network┆
0x425e0…42600 2e 20 54 68 65 20 61 63 63 65 73 73 20 74 6f 20 74 68 65 20 4e 4d 48 20 69 73 20 63 6f 6e 74 72 ┆. The access to the NMH is contr┆
0x42600…42620 (66, 0, 6) 42 07 ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆B CA 1 ┆
0x42620…42640 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x42640…42660 20 20 20 20 20 20 20 20 20 03 04 54 68 65 20 70 72 69 6d 61 72 79 20 73 6f 75 72 63 65 20 73 65 ┆ The primary source se┆
0x42660…42680 6c 65 63 74 65 64 20 66 6f 72 20 61 75 74 68 65 6e 74 69 63 61 74 65 64 20 72 65 6c 61 69 62 69 ┆lected for authenticated relaibi┆
0x42680…426a0 6c 69 74 79 20 64 61 74 61 20 61 6e 64 20 70 72 65 64 69 63 74 69 6f 6e 73 20 69 73 20 74 68 65 ┆lity data and predictions is the┆
0x426a0…426c0 20 4d 49 4c 2d 48 44 42 4b 2d 32 31 37 2e 20 54 68 65 20 66 61 69 6c 75 72 65 20 72 61 74 65 20 ┆ MIL-HDBK-217. The failure rate ┆
0x426c0…426e0 64 61 74 61 20 61 72 65 20 70 72 69 6d 61 72 69 6c 79 20 6f 62 74 61 69 6e 65 64 20 66 72 6f 6d ┆data are primarily obtained from┆
0x426e0…42700 20 65 78 70 65 72 69 65 6e 63 65 20 66 72 6f 6d 20 70 72 65 76 69 6f 75 73 20 70 72 6f 67 72 61 ┆ experience from previous progra┆
0x42700…42720 (66, 0, 7) 41 08 e5 00 13 43 41 6d 6d 65 73 20 61 6e 64 20 63 6f 6e 74 69 6e 75 6f 75 73 6c 79 20 72 65 76 ┆A e CAmmes and continuously rev┆
0x42720…42740 69 73 65 64 20 61 73 20 70 61 72 74 20 6f 66 20 74 68 65 20 6d 61 69 6e 74 65 6e 61 6e 63 65 20 ┆ised as part of the maintenance ┆
0x42740…42760 70 72 6f 67 72 61 6d 6d 65 20 6f 6e 20 63 6f 6e 63 75 72 72 65 6e 74 20 70 72 6f 67 72 61 6d 6d ┆programme on concurrent programm┆
0x42760…42780 65 73 2e 03 03 04 54 68 65 20 72 65 6c 69 61 6c 69 62 69 6c 69 74 79 20 6d 6f 64 65 6c 73 20 77 ┆es. The relialibility models w┆
0x42780…427a0 68 69 63 68 20 61 70 70 6c 79 20 74 6f 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 63 6f 6e 66 69 ┆hich apply to the proposed confi┆
0x427a0…427c0 67 75 72 61 74 69 6f 6e 73 20 61 72 65 20 69 64 65 6e 74 69 66 69 65 64 20 69 6e 20 74 68 65 20 ┆gurations are identified in the ┆
0x427c0…427e0 66 69 67 75 72 65 73 20 73 68 6f 77 6e 20 6f 6e 20 74 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 70 ┆figures shown on the following p┆
0x427e0…42800 61 67 65 73 2e 03 61 79 20 62 65 20 63 75 73 74 6f 6d 69 73 65 64 20 74 6f 20 74 68 65 20 61 63 ┆ages. ay be customised to the ac┆
0x42800…42820 (66, 0, 8) 42 09 ff 00 13 43 41 74 75 61 6c 20 61 76 61 69 6c 61 62 69 6c 69 74 79 20 72 65 71 75 69 72 65 ┆B CAtual availability require┆
0x42820…42840 6d 65 6e 74 73 2e 20 54 68 65 20 43 52 38 30 20 66 61 75 6c 74 20 74 6f 6c 65 72 61 6e 74 20 63 ┆ments. The CR80 fault tolerant c┆
0x42840…42860 6f 6d 70 75 74 65 72 73 20 61 72 65 20 64 65 73 69 67 6e 65 64 20 74 6f 20 61 76 6f 69 64 20 61 ┆omputers are designed to avoid a┆
0x42860…42880 20 73 69 6e 67 6c 65 20 70 6f 69 6e 74 20 65 72 72 6f 72 73 20 6f 66 20 61 6c 6c 20 63 72 69 74 ┆ single point errors of all crit┆
0x42880…428a0 69 63 61 6c 20 73 79 73 74 65 6d 20 65 6c 65 6d 65 6e 74 73 20 62 79 20 70 72 6f 76 69 73 69 6f ┆ical system elements by provisio┆
0x428a0…428c0 6e 20 6f 66 20 72 65 64 75 6e 64 61 6e 63 79 20 70 61 74 68 73 2c 70 72 6f 63 65 73 73 6f 72 20 ┆n of redundancy paths,processor ┆
0x428c0…428e0 63 61 70 61 62 69 6c 69 74 69 65 73 20 61 6e 64 20 70 6f 77 65 72 20 73 75 70 70 6c 69 65 73 2e ┆capabilities and power supplies.┆
0x428e0…42900 03 03 04 54 68 65 20 61 72 63 68 69 74 65 63 74 75 72 65 20 72 65 66 6c 65 63 74 73 20 74 68 65 ┆ The architecture reflects the┆
0x42900…42920 (66, 0, 9) 42 0a ff 00 13 43 41 20 66 61 63 74 20 74 68 61 74 20 74 68 65 20 72 65 6c 69 61 62 69 6c 69 74 ┆B CA fact that the reliabilit┆
0x42920…42940 79 20 6f 66 20 70 65 72 69 70 68 65 72 61 6c 20 64 65 76 69 63 65 73 20 69 73 20 6c 6f 77 65 72 ┆y of peripheral devices is lower┆
0x42940…42960 20 74 68 61 6e 20 74 68 61 74 20 6f 66 20 74 68 65 20 61 73 73 6f 63 69 61 74 65 64 20 43 52 38 ┆ than that of the associated CR8┆
0x42960…42980 30 20 64 65 76 69 63 65 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 2e 20 54 68 69 73 20 61 70 70 6c 69 ┆0 device controllers. This appli┆
0x42980…429a0 65 73 20 65 71 75 61 6c 6c 79 20 77 65 6c 6c 20 74 6f 20 63 6f 6d 6d 75 6e 69 63 61 74 69 6f 6e ┆es equally well to communication┆
0x429a0…429c0 20 6c 69 6e 65 73 20 77 68 65 72 65 20 6d 6f 64 65 6d 73 20 61 72 65 20 75 73 65 64 20 61 73 20 ┆ lines where modems are used as ┆
0x429c0…429e0 70 61 72 74 20 6f 66 20 74 68 65 20 74 72 61 6e 73 6d 69 73 73 69 6f 6e 20 6d 65 64 69 61 2e 20 ┆part of the transmission media. ┆
0x429e0…42a00 54 68 75 73 2c 20 74 68 65 20 70 65 72 69 70 68 65 72 61 6c 20 64 65 76 69 63 65 73 20 2c 20 6d ┆Thus, the peripheral devices , m┆
0x42a00…42a20 (66, 0, 10) 42 0b ff 00 13 43 41 6f 64 65 6d 73 2c 20 63 6f 6d 6d 75 6e 69 63 61 74 69 6f 6e 20 6c 69 6e 65 ┆B CAodems, communication line┆
0x42a20…42a40 73 2c 20 65 74 63 20 20 69 6d 70 61 63 74 20 74 68 65 20 73 79 73 74 65 6d 20 61 76 61 69 6c 61 ┆s, etc impact the system availa┆
0x42a40…42a60 62 69 6c 69 74 79 20 6d 75 63 68 20 6d 6f 72 65 20 74 68 61 6e 20 74 68 65 20 63 6f 72 72 65 73 ┆bility much more than the corres┆
0x42a60…42a80 70 6f 6e 64 69 6e 67 20 64 65 76 69 63 65 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 2e 03 03 04 49 6e ┆ponding device controllers. In┆
0x42a80…42aa0 20 63 6f 6e 6e 65 63 74 69 6f 6e 20 77 69 74 68 20 63 6f 6d 6d 75 6e 69 63 61 74 69 6f 6e 20 6c ┆ connection with communication l┆
0x42aa0…42ac0 69 6e 65 73 2c 20 74 68 65 20 43 52 38 30 20 43 55 27 73 20 75 74 69 6c 69 73 65 73 20 6e 20 6f ┆ines, the CR80 CU's utilises n o┆
0x42ac0…42ae0 75 74 20 6f 66 20 6e 2b 31 20 4c 54 55 27 73 20 61 6e 64 20 6e 20 4c 49 41 2d 53 27 73 20 74 6f ┆ut of n+1 LTU's and n LIA-S's to┆
0x42ae0…42b00 20 61 63 68 69 65 76 65 20 74 68 65 20 68 69 67 68 65 73 74 20 70 6f 73 73 69 62 6c 65 20 61 76 ┆ achieve the highest possible av┆
0x42b00…42b20 (66, 0, 11) 42 0c ff 00 13 43 41 61 69 6c 61 62 69 6c 69 74 79 20 74 6f 20 69 6e 64 69 76 69 64 75 61 6c 20 ┆B CAailability to individual ┆
0x42b20…42b40 73 75 62 73 63 72 69 62 65 72 73 2e 20 54 68 65 20 66 75 6e 63 74 69 6f 6e 73 20 6f 66 20 61 20 ┆subscribers. The functions of a ┆
0x42b40…42b60 66 61 69 6c 65 64 20 4c 54 55 20 63 61 6e 20 61 75 74 6f 6d 61 74 69 63 61 6c 6c 79 20 62 65 20 ┆failed LTU can automatically be ┆
0x42b60…42b80 74 61 6b 65 6e 20 6f 76 65 72 20 62 79 20 74 68 65 20 73 70 61 72 65 20 4c 54 55 2c 20 65 6c 65 ┆taken over by the spare LTU, ele┆
0x42b80…42ba0 63 74 72 6f 6e 69 63 61 6c 6c 79 20 63 6f 6e 74 72 6f 6c 6c 65 64 20 62 79 20 65 6e 61 62 6c 69 ┆ctronically controlled by enabli┆
0x42ba0…42bc0 6e 67 20 74 68 65 20 61 70 70 72 6f 70 72 69 61 74 65 20 4c 49 41 2d 53 2e 03 03 04 54 6f 20 61 ┆ng the appropriate LIA-S. To a┆
0x42bc0…42be0 73 73 75 72 65 20 74 68 69 73 20 76 65 72 79 20 68 69 67 68 6c 79 20 72 65 6c 69 61 62 6c 65 20 ┆ssure this very highly reliable ┆
0x42be0…42c00 70 72 6f 64 75 63 74 2c 20 73 65 76 65 72 61 6c 20 63 72 69 74 65 72 69 61 73 20 77 65 72 65 20 ┆product, several criterias were ┆
0x42c00…42c20 (66, 0, 12) 42 0d a5 00 13 43 41 61 6c 73 6f 20 69 6e 74 72 6f 64 75 63 65 64 20 6f 6e 20 74 68 65 20 6d 6f ┆B % CAalso introduced on the mo┆
0x42c20…42c40 64 75 6c 65 20 6c 65 76 65 6c 3a 03 03 04 04 41 6e 20 65 78 74 65 6e 73 69 76 65 20 75 73 65 20 ┆dule level: An extensive use ┆
0x42c40…42c60 6f 66 20 68 69 2d 72 65 6c 2c 20 6d 69 6c 2d 73 70 65 63 20 63 6f 6d 70 6f 6e 65 6e 74 73 2c 20 ┆of hi-rel, mil-spec components, ┆
0x42c60…42c80 49 43 73 20 61 72 65 20 74 65 73 74 65 64 20 74 6f 20 74 68 65 20 72 65 71 75 69 72 65 6d 65 6e ┆ICs are tested to the requiremen┆
0x42c80…42ca0 74 73 20 6f 66 20 4d 49 4c 2d 53 54 44 20 38 38 33 20 6c 65 76 65 6c 20 42 20 6f 72 20 73 69 6d ┆ts of MIL-STD 883 level B or sim┆
0x42ca0…42cc0 69 6c 61 72 2e 03 6a cd 01 28 2a a8 3d 7e 0f 1f d2 bb 2f 21 af 3d 36 6e cd 01 28 2a a8 3d 7e 0f ┆ilar. jM (*(=~ R;/!/=6nM (*(=~ ┆
0x42cc0…42ce0 0f 1f d2 cd 2f 21 af 3d 36 69 cd 01 28 2a a8 3d 7e 0f 0f 0f 1f d2 e0 2f 21 af 3d 36 57 cd 01 28 ┆ RM/!/=6iM (*(=~ R`/!/=6WM (┆
0x42ce0…42d00 2a a8 3d 7e 0f 0f 0f 0f 1f d2 f4 2f 21 af 3d 36 6c cd 01 28 2a a8 3d 7e 0f 0f 0f 0f 0f 1f d2 09 ┆*(=~ Rt/!/=6lM (*(=~ R ┆
0x42d00…42d20 (66, 0, 13) 42 0e ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆B CA 1 ┆
0x42d20…42d40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x42d40…42d60 20 20 20 20 20 20 20 20 20 03 04 04 41 6c 6c 20 68 61 72 64 77 61 72 65 20 69 73 20 64 65 73 69 ┆ All hardware is desi┆
0x42d60…42d80 67 6e 65 64 20 69 6e 20 61 63 63 6f 72 64 61 6e 63 65 20 77 69 74 68 20 74 68 65 20 67 65 6e 65 ┆gned in accordance with the gene┆
0x42d80…42da0 72 61 6c 20 43 52 38 30 20 48 2f 57 20 64 65 73 69 67 6e 20 70 72 69 6e 63 69 70 6c 65 73 2e 20 ┆ral CR80 H/W design principles. ┆
0x42da0…42dc0 54 68 65 73 65 20 69 6e 63 6c 75 64 65 20 64 65 72 61 74 69 6e 67 20 73 70 65 63 69 66 69 63 61 ┆These include derating specifica┆
0x42dc0…42de0 74 69 6f 6e 73 2c 20 77 68 69 63 68 20 67 72 65 61 74 6c 79 20 65 6e 68 61 6e 63 65 20 74 68 65 ┆tions, which greatly enhance the┆
0x42de0…42e00 20 72 65 6c 69 61 62 69 6c 69 74 79 20 61 6e 64 20 72 65 64 75 63 65 20 74 68 65 20 73 65 6e 73 ┆ reliability and reduce the sens┆
0x42e00…42e20 (66, 0, 14) 42 0f ff 00 13 43 41 69 62 69 6c 69 74 79 20 74 6f 20 70 61 72 61 6d 65 74 65 72 20 76 61 72 69 ┆B CAibility to parameter vari┆
0x42e20…42e40 61 74 69 6f 6e 73 2e 03 03 04 04 43 72 69 74 69 63 61 6c 20 6d 6f 64 75 6c 65 73 20 66 65 61 74 ┆ations. Critical modules feat┆
0x42e40…42e60 75 72 65 20 61 20 42 75 69 6c 74 2d 49 6e 28 42 49 54 29 20 63 61 70 61 62 69 6c 69 74 79 20 61 ┆ure a Built-In(BIT) capability a┆
0x42e60…42e80 73 20 77 65 6c 6c 20 61 73 20 61 20 64 69 73 70 6c 61 79 20 6f 66 20 74 68 65 20 6d 61 69 6e 20 ┆s well as a display of the main ┆
0x42e80…42ea0 73 74 61 74 65 73 20 6f 66 20 74 68 65 20 69 6e 74 65 72 6e 61 6c 20 70 72 6f 63 65 73 73 20 62 ┆states of the internal process b┆
0x42ea0…42ec0 79 20 4c 69 67 68 74 20 45 6d 69 74 74 69 6e 67 20 44 69 6f 64 65 73 20 6f 6e 20 74 68 65 20 6d ┆y Light Emitting Diodes on the m┆
0x42ec0…42ee0 6f 64 75 6c 65 20 66 72 6f 6e 74 20 70 6c 61 74 65 2e 20 54 68 69 73 20 67 72 65 61 74 6c 79 20 ┆odule front plate. This greatly ┆
0x42ee0…42f00 69 6d 70 72 6f 76 65 73 20 6d 6f 64 75 6c 65 20 6d 61 69 6e 74 61 69 6e 61 62 69 6c 69 74 79 2c ┆improves module maintainability,┆
0x42f00…42f20 (66, 0, 15) 42 00 ff 00 13 43 41 20 61 73 20 69 74 20 70 72 6f 76 69 64 65 73 20 64 65 62 75 67 20 61 6e 64 ┆B CA as it provides debug and┆
0x42f20…42f40 20 74 72 6f 75 62 6c 65 20 73 68 6f 6f 74 69 6e 67 20 6d 65 74 68 6f 64 73 2c 20 77 68 69 63 68 ┆ trouble shooting methods, which┆
0x42f40…42f60 20 72 65 64 75 63 65 20 74 68 65 20 72 65 70 61 69 72 20 74 69 6d 65 2e 03 03 04 04 41 20 68 69 ┆ reduce the repair time. A hi┆
0x42f60…42f80 67 68 20 71 75 61 6c 69 74 79 20 70 72 6f 64 75 63 74 69 6f 6e 20 6c 69 6e 65 2c 20 77 68 69 63 ┆gh quality production line, whic┆
0x42f80…42fa0 68 20 69 6e 63 6c 75 64 65 73 20 68 69 67 68 20 71 75 61 6c 69 74 79 20 73 6f 6c 64 65 72 69 6e ┆h includes high quality solderin┆
0x42fa0…42fc0 67 2c 20 69 6e 73 70 65 63 74 69 6f 6e 2c 20 62 75 72 6e 2d 69 6e 20 61 6e 64 20 61 6e 20 65 78 ┆g, inspection, burn-in and an ex┆
0x42fc0…42fe0 74 65 6e 73 69 76 65 20 61 75 74 6f 6d 61 74 69 63 20 66 75 6e 63 74 69 6f 6e 61 6c 20 74 65 73 ┆tensive automatic functional tes┆
0x42fe0…43000 74 2e 03 03 03 37 2e 32 04 d2 c5 cc c9 c1 c2 c9 cc c9 d4 d9 a0 cd cf c4 c5 cc d3 a0 c1 ce c4 a0 ┆t. 7.2 RELIABILITY MODELS AND ┆
0x43000…43020 (67, 0, 0) 43 01 ff 00 13 43 41 6d 65 6e 74 73 20 61 75 74 6f 6d 61 74 69 63 61 6c 6c 79 20 73 75 62 73 74 ┆C CAments automatically subst┆
0x43020…43040 69 74 75 74 65 20 65 61 63 68 20 6f 74 68 65 72 20 69 6e 20 63 61 73 65 20 6f 66 20 66 61 69 6c ┆itute each other in case of fail┆
0x43040…43060 75 72 65 2e 20 4f 76 65 72 61 6c 6c 20 73 79 73 74 65 6d 20 61 76 61 69 6c 61 62 69 6c 69 74 79 ┆ure. Overall system availability┆
0x43060…43080 20 68 61 73 20 62 65 65 6e 20 63 61 6c 63 75 6c 61 74 65 64 2e 03 03 04 54 68 65 20 68 69 67 68 ┆ has been calculated. The high┆
0x43080…430a0 20 73 79 73 74 65 6d 20 61 76 61 69 6c 61 62 69 6c 69 74 79 20 68 61 73 20 62 65 65 6e 20 61 63 ┆ system availability has been ac┆
0x430a0…430c0 68 69 65 76 65 64 20 62 79 20 75 73 65 20 6f 66 20 68 69 67 68 6c 79 20 72 65 6c 69 61 62 6c 65 ┆hieved by use of highly reliable┆
0x430c0…430e0 20 6d 6f 64 75 6c 65 73 2c 20 72 65 64 75 6e 64 61 6e 74 20 70 72 6f 63 65 73 73 6f 72 20 75 6e ┆ modules, redundant processor un┆
0x430e0…43100 69 74 73 20 61 6e 64 20 6c 69 6e 65 20 74 65 72 6d 69 6e 61 74 69 6f 6e 20 75 6e 69 74 73 2c 20 ┆its and line termination units, ┆
0x43100…43120 (67, 0, 1) 43 02 ff 00 13 43 41 61 6e 64 20 61 75 74 6f 6d 61 74 69 63 20 72 65 63 6f 6e 66 69 67 75 72 61 ┆C CAand automatic reconfigura┆
0x43120…43140 74 69 6f 6e 20 66 61 63 69 6c 69 74 69 65 73 2e 20 43 61 72 65 20 68 61 73 20 62 65 65 6e 20 74 ┆tion facilities. Care has been t┆
0x43140…43160 61 6b 65 6e 20 74 6f 20 65 6e 73 75 72 65 20 74 68 61 74 20 73 69 6e 67 6c 65 20 70 6f 69 6e 74 ┆aken to ensure that single point┆
0x43160…43180 20 65 72 72 6f 72 73 20 64 6f 20 6e 6f 74 20 63 61 75 73 65 20 74 6f 74 61 6c 20 73 79 73 74 65 ┆ errors do not cause total syste┆
0x43180…431a0 6d 20 66 61 69 6c 75 72 65 2e 03 03 04 54 68 65 20 72 65 6c 69 61 62 69 6c 69 74 79 20 63 72 69 ┆m failure. The reliability cri┆
0x431a0…431c0 74 65 72 69 61 20 69 6d 70 6f 73 65 64 20 6f 6e 20 74 68 65 20 63 6f 6d 70 75 74 65 72 20 73 79 ┆teria imposed on the computer sy┆
0x431c0…431e0 73 74 65 6d 73 20 68 61 73 20 62 65 65 6e 20 65 76 61 6c 75 61 74 65 64 20 61 6e 64 20 74 68 65 ┆stems has been evaluated and the┆
0x431e0…43200 20 70 72 6f 70 6f 73 65 64 20 68 61 72 64 77 61 72 65 2f 73 6f 66 74 77 61 72 65 20 6f 70 65 72 ┆ proposed hardware/software oper┆
0x43200…43220 (67, 0, 2) 43 03 ff 00 13 43 41 61 74 69 6f 6e 61 6c 20 73 79 73 74 65 6d 20 61 6e 61 6c 79 73 65 64 20 74 ┆C CAational system analysed t┆
0x43220…43240 6f 20 64 65 74 65 72 6d 69 6e 65 20 74 68 65 20 64 65 67 72 65 65 20 6f 66 20 61 76 61 69 6c 61 ┆o determine the degree of availa┆
0x43240…43260 62 69 6c 69 74 79 20 61 6e 64 20 64 61 74 61 20 69 6e 74 65 67 72 69 74 79 20 70 72 6f 76 69 64 ┆bility and data integrity provid┆
0x43260…43280 65 64 2e 20 49 6e 20 74 68 69 73 20 63 68 61 70 74 65 72 20 72 65 6c 69 61 62 69 6c 69 74 79 20 ┆ed. In this chapter reliability ┆
0x43280…432a0 69 73 20 73 74 61 74 65 64 20 69 6e 20 6e 75 6d 65 72 69 63 61 6c 20 74 65 72 6d 73 20 61 6e 64 ┆is stated in numerical terms and┆
0x432a0…432c0 20 74 68 65 20 64 65 74 61 69 6c 65 64 20 70 72 65 64 69 63 74 69 6f 6e 73 20 64 65 72 69 76 65 ┆ the detailed predictions derive┆
0x432c0…432e0 64 20 66 72 6f 6d 20 6d 61 74 68 65 6d 61 74 69 63 61 6c 20 6d 6f 64 65 6c 73 20 70 72 65 73 65 ┆d from mathematical models prese┆
0x432e0…43300 6e 74 65 64 2e 03 03 04 54 68 65 20 61 76 61 69 6c 61 62 69 6c 69 74 79 20 70 72 65 64 69 63 74 ┆nted. The availability predict┆
0x43300…43320 (67, 0, 3) 43 04 ff 00 13 43 41 69 6f 6e 73 20 61 72 65 20 6d 61 64 65 20 69 6e 20 61 63 63 6f 72 64 61 6e ┆C CAions are made in accordan┆
0x43320…43340 63 65 20 77 69 74 68 20 73 79 73 74 65 6d 20 72 65 6c 69 61 62 69 6c 69 74 79 20 6d 6f 64 65 6c ┆ce with system reliability model┆
0x43340…43360 73 20 61 6e 64 20 62 6c 6f 63 6b 20 64 61 69 61 67 72 61 6d 73 20 63 6f 72 72 65 73 70 6f 6e 64 ┆s and block daiagrams correspond┆
0x43360…43380 69 6e 67 20 74 6f 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 63 6f 6e 66 69 67 75 72 61 74 69 6f ┆ing to the proposed configuratio┆
0x43380…433a0 6e 2e 20 54 68 69 73 20 70 72 6f 63 65 64 75 72 65 20 69 6e 76 6f 6c 76 65 73 20 74 68 65 20 75 ┆n. This procedure involves the u┆
0x433a0…433c0 73 65 20 6f 66 20 6d 6f 64 75 6c 65 20 6c 65 76 65 6c 20 61 6e 64 20 70 72 6f 63 65 73 73 6f 72 ┆se of module level and processor┆
0x433c0…433e0 20 75 6e 69 74 20 6c 65 76 65 6c 20 66 61 69 6c 75 72 65 20 72 61 74 65 73 2c 20 6f 72 20 4d 54 ┆ unit level failure rates, or MT┆
0x433e0…43400 42 46 2c 20 28 6d 65 61 6e 20 74 69 6d 65 20 62 65 74 77 65 65 6e 20 66 61 69 6c 75 72 65 29 20 ┆BF, (mean time between failure) ┆
0x43400…43420 (67, 0, 4) 43 05 ff 00 13 43 41 61 6e 73 20 72 65 70 61 69 72 20 74 69 6d 65 73 20 6f 72 20 4d 54 54 52 2c ┆C CAans repair times or MTTR,┆
0x43420…43440 20 28 6d 65 61 6e 20 74 69 6d 65 20 74 6f 20 72 65 70 61 69 72 29 3b 20 74 68 65 73 65 20 66 61 ┆ (mean time to repair); these fa┆
0x43440…43460 63 74 6f 72 73 20 61 72 65 20 75 73 65 64 20 69 6e 20 63 6f 6e 6a 75 6e 63 74 69 6f 6e 20 77 69 ┆ctors are used in conjunction wi┆
0x43460…43480 74 68 20 61 20 72 65 61 6c 69 73 74 69 63 20 6d 6f 64 65 6c 6c 69 6e 67 20 6f 66 20 74 68 65 20 ┆th a realistic modelling of the ┆
0x43480…434a0 63 6f 6e 66 69 67 75 72 61 74 69 6f 6e 20 74 6f 20 61 72 72 69 76 65 20 61 74 20 73 79 73 74 65 ┆configuration to arrive at syste┆
0x434a0…434c0 6d 20 6c 65 76 65 6c 20 4d 54 42 46 20 61 6e 64 20 61 76 61 69 6c 61 62 69 6c 69 74 79 2e 03 03 ┆m level MTBF and availability. ┆
0x434c0…434e0 04 54 61 62 75 6c 61 74 65 64 20 72 65 73 75 6c 74 73 20 6f 66 20 74 68 65 20 61 6e 61 6c 79 73 ┆ Tabulated results of the analys┆
0x434e0…43500 69 73 20 61 72 65 20 70 72 65 73 65 6e 74 65 64 20 69 6e 63 6c 75 64 69 6e 67 20 74 68 65 20 72 ┆is are presented including the r┆
0x43500…43520 (67, 0, 5) 43 06 3b 00 13 43 41 65 6c 69 61 62 69 6c 74 79 20 66 61 63 74 6f 72 73 3a 20 73 79 73 74 65 6d ┆C ; CAeliabilty factors: system┆
0x43520…43540 20 4d 54 42 46 20 61 6e 64 20 72 65 70 61 69 72 20 74 69 6d 65 20 4d 54 54 52 2e 03 74 68 65 20 ┆ MTBF and repair time MTTR. the ┆
0x43540…43560 73 74 61 6e 64 61 72 64 20 73 6f 66 74 77 61 72 65 20 75 74 69 6c 69 74 79 20 70 61 63 6b 61 67 ┆standard software utility packag┆
0x43560…43580 65 2e 03 03 65 72 6d 69 6e 61 6c 20 50 72 6f 74 6f 63 6f 6c 22 20 64 65 73 63 72 69 62 65 64 20 ┆e. erminal Protocol" described ┆
0x43580…435a0 69 6e 20 73 65 63 74 69 6f 6e 20 36 2e 36 2e 03 03 04 54 68 75 73 20 74 68 65 20 4e 4d 48 20 69 ┆in section 6.6. Thus the NMH i┆
0x435a0…435c0 73 20 61 62 6c 65 20 74 6f 20 73 65 72 76 65 20 61 6e 79 20 75 73 65 72 20 61 74 20 61 6e 79 20 ┆s able to serve any user at any ┆
0x435c0…435e0 74 65 72 6d 69 6e 61 6c 20 69 6e 20 74 68 65 20 62 61 63 6b 62 6f 6e 65 20 6e 65 74 77 6f 72 6b ┆terminal in the backbone network┆
0x435e0…43600 2e 20 54 68 65 20 61 63 63 65 73 73 20 74 6f 20 74 68 65 20 4e 4d 48 20 69 73 20 63 6f 6e 74 72 ┆. The access to the NMH is contr┆
0x43600…43620 (67, 0, 6) 43 07 ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 ┆C CA 1 ┆
0x43620…43640 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x43640…43660 20 20 20 20 20 20 20 20 20 03 04 54 68 65 20 62 61 73 69 63 20 65 6c 65 6d 65 6e 74 73 20 6f 66 ┆ The basic elements of┆
0x43660…43680 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 73 79 73 74 65 6d 20 61 72 63 68 69 74 65 63 74 75 72 ┆ the proposed system architectur┆
0x43680…436a0 65 20 61 72 65 20 63 6f 6e 73 74 69 74 75 74 65 64 20 62 79 20 73 74 61 6e 64 61 72 64 20 43 52 ┆e are constituted by standard CR┆
0x436a0…436c0 38 30 20 75 6e 69 74 73 2e 20 52 65 6c 69 61 62 69 6c 74 79 20 61 6e 64 20 6d 61 69 6e 74 61 69 ┆80 units. Reliabilty and maintai┆
0x436c0…436e0 6e 61 62 69 6c 69 74 79 20 65 6e 67 69 6e 65 65 72 69 6e 67 20 77 61 73 20 73 69 67 6e 69 66 69 ┆nability engineering was signifi┆
0x436e0…43700 63 61 6e 74 20 66 61 63 74 6f 72 20 69 6e 20 67 75 69 64 69 6e 67 20 74 68 65 20 64 65 76 65 6c ┆cant factor in guiding the devel┆
0x43700…43720 (67, 0, 7) 42 08 ff 00 13 43 41 6f 70 6d 65 6e 74 20 6f 66 20 74 68 65 20 43 52 38 30 2e 03 03 04 54 68 65 ┆B CAopment of the CR80. The┆
0x43720…43740 20 43 52 38 30 20 61 72 63 68 69 74 65 63 74 75 72 65 20 69 73 20 64 65 73 69 67 6e 65 64 20 77 ┆ CR80 architecture is designed w┆
0x43740…43760 69 74 68 20 61 20 63 61 70 61 62 69 6c 69 74 79 20 74 6f 20 61 63 68 69 65 76 65 20 61 20 68 69 ┆ith a capability to achieve a hi┆
0x43760…43780 67 68 6c 79 20 72 65 6c 69 61 62 6c 65 20 63 6f 6d 70 75 74 65 72 20 73 79 73 74 65 6d 20 69 6e ┆ghly reliable computer system in┆
0x43780…437a0 20 61 20 63 6f 73 74 2d 65 66 66 65 63 74 69 76 65 20 77 61 79 2e 20 49 74 20 70 72 6f 76 69 64 ┆ a cost-effective way. It provid┆
0x437a0…437c0 65 73 20 61 20 72 65 6c 69 61 62 6c 65 20 73 65 74 20 6f 66 20 73 65 72 76 69 63 65 73 20 74 6f ┆es a reliable set of services to┆
0x437c0…437e0 20 74 68 65 20 75 73 65 72 73 20 6f 66 20 74 68 65 20 73 79 73 74 65 6d 2c 20 62 65 63 61 75 73 ┆ the users of the system, becaus┆
0x437e0…43800 65 20 69 74 20 6d 61 79 20 62 65 20 63 75 73 74 6f 6d 69 73 65 64 20 74 6f 20 74 68 65 20 61 63 ┆e it may be customised to the ac┆
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0x43900…43920 (67, 0, 9) 43 0a 2f 00 13 43 41 86 00 00 00 00 00 00 00 00 43 0a 43 0d 43 06 42 0d 42 06 41 08 41 0a 41 0b ┆C / CA C C C B B A A A ┆
0x43920…43940 41 0c 41 0d 41 0e 41 00 41 01 41 02 41 03 41 04 41 05 41 06 41 07 40 08 40 09 40 0b 40 01 40 02 ┆A A A A A A A A A A A @ @ @ @ @ ┆
0x43940…43960 40 03 3f 0c 3f 06 3e 0f 3e 03 3d 0b 3d 0c 3d 0d 3d 01 3d 04 3d 07 3c 0a 3c 01 3c 04 3b 09 3b 0f ┆@ ? ? > > = = = = = = < < < ; ; ┆
0x43960…43980 3b 01 3b 07 26 06 25 0b 25 01 25 06 24 0c 6f 6b 75 6d 65 6e 74 20 6e 72 3a 02 00 03 44 6f 6b 75 ┆; ; & % % % $ okument nr: Doku┆
0x43980…439a0 6d 65 6e 74 6e 61 76 6e 3a 02 00 03 4f 70 65 72 61 74 5d 72 3a 02 00 03 46 6f 72 66 61 74 74 65 ┆mentnavn: Operat]r: Forfatte┆
0x439a0…439c0 72 3a 02 00 03 03 4b 6f 6d 6d 65 6e 74 61 72 65 72 3a 02 00 03 03 03 02 02 53 54 41 54 49 53 54 ┆r: Kommentarer: STATIST┆
0x439c0…439e0 49 4b 03 03 41 4b 54 49 56 49 54 45 54 02 44 41 54 4f 02 54 49 44 02 02 41 4e 56 2e 54 49 44 02 ┆IK AKTIVITET DATO TID ANV.TID ┆
0x439e0…43a00 41 4e 53 4c 41 47 03 03 4f 70 72 65 74 74 65 74 02 00 2f 00 2f 00 02 00 3a 00 02 00 3a 00 02 00 ┆ANSLAG Oprettet / / : : ┆
0x43a00…43a20 (67, 0, 10) 43 0b ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 02 20 20 20 02 20 20 20 02 20 20 20 02 20 ┆C CA 1 ┆
0x43a20…43a40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x43a40…43a60 20 20 20 20 20 20 20 20 20 20 03 04 4c 49 53 54 20 4f 46 20 43 4f 4e 54 45 4e 54 53 03 03 37 2e ┆ LIST OF CONTENTS 7.┆
0x43a60…43a80 04 52 4d 41 03 03 37 2e 31 04 49 6e 74 72 6f 64 75 63 74 69 6f 6e 03 03 37 2e 32 04 52 65 6c 69 ┆ RMA 7.1 Introduction 7.2 Reli┆
0x43a80…43aa0 61 62 69 6c 69 74 79 20 4d 6f 64 65 6c 73 20 61 6e 64 20 42 6c 6f 63 6b 20 44 69 61 67 72 61 6d ┆ability Models and Block Diagram┆
0x43aa0…43ac0 73 03 37 2e 32 2e 31 04 52 65 6c 69 61 62 69 6c 69 74 79 20 4d 6f 64 65 6c 73 20 66 6f 20 50 55 ┆s 7.2.1 Reliability Models fo PU┆
0x43ac0…43ae0 27 73 03 37 2e 32 2e 32 04 52 65 6c 69 61 62 69 6c 69 74 79 20 4d 6f 64 65 6c 73 20 66 6f 72 20 ┆'s 7.2.2 Reliability Models for ┆
0x43ae0…43b00 43 55 27 73 03 37 2e 32 2e 33 04 4e 6f 64 65 20 52 65 6c 69 61 62 69 6c 69 74 79 03 37 2e 32 2e ┆CU's 7.2.3 Node Reliability 7.2.┆
0x43b00…43b20 (67, 0, 11) 43 0c ff 00 13 43 41 34 04 45 4d 48 20 52 65 6c 69 61 62 69 6c 69 74 79 03 37 2e 32 2e 35 04 47 ┆C CA4 EMH Reliability 7.2.5 G┆
0x43b20…43b40 54 57 20 52 65 6c 69 61 62 69 6c 69 74 79 03 37 2e 32 2e 36 04 53 69 74 65 20 52 65 6c 69 61 62 ┆TW Reliability 7.2.6 Site Reliab┆
0x43b40…43b60 69 6c 69 74 79 03 37 2e 32 2e 37 04 4e 43 43 20 53 75 62 73 79 73 74 65 6d 03 37 2e 32 2e 38 04 ┆ility 7.2.7 NCC Subsystem 7.2.8 ┆
0x43b60…43b80 4e 65 74 77 6f 72 6b 20 41 76 61 69 6c 61 62 69 6c 69 74 79 03 03 37 2e 33 04 45 71 75 69 70 6d ┆Network Availability 7.3 Equipm┆
0x43b80…43ba0 65 6e 74 20 4d 65 61 6e 20 54 69 6d 65 20 42 65 74 77 65 65 6e 20 46 61 69 6c 75 72 65 73 20 28 ┆ent Mean Time Between Failures (┆
0x43ba0…43bc0 4d 54 42 46 29 03 03 37 2e 34 04 45 71 75 69 70 6d 65 6e 74 20 4d 61 69 6e 74 61 69 6e 61 62 69 ┆MTBF) 7.4 Equipment Maintainabi┆
0x43bc0…43be0 6c 69 74 79 20 28 4d 54 54 52 29 03 03 37 2e 35 04 52 4d 41 20 41 6e 61 6c 79 73 69 73 03 37 2e ┆lity (MTTR) 7.5 RMA Analysis 7.┆
0x43be0…43c00 35 2e 31 04 52 4d 41 20 41 6e 61 6c 79 73 69 73 20 66 6f 72 20 43 6f 6d 6d 75 6e 69 63 61 74 69 ┆5.1 RMA Analysis for Communicati┆
0x43c00…43c20 (67, 0, 12) 43 0d 0f 00 13 43 41 6f 6e 20 4c 69 6e 65 73 03 65 3d 1f d2 2b 2f 3a 5d 3d 32 23 3c 21 20 3c 36 ┆C CAon Lines e= R+/:]=2#<! <6┆
0x43c20…43c40 06 cd b1 27 1f d2 2b 2f cd 99 29 cd b2 26 cd 50 27 c9 3a 5e 3d fe 04 c2 3b 2f c9 cd 43 27 21 65 ┆ M1' R+/M )M2&MP'I:^=~ B;/IMC'!e┆
0x43c40…43c60 3d 36 00 2a a8 3d 7e 1f d2 4e 2f c3 7d 2f 3a 5d 3d 32 23 3c 3a 62 3d 1f d2 63 2f 21 20 3c 36 06 ┆=6 *(=~ RN/C}/:]=2#<:b= Rc/! <6 ┆
0x43c60…43c80 c3 68 2f 21 20 3c 36 07 cd a9 28 3a 5e 3d fe 03 c2 74 2f c9 3a 5c 3d 32 23 3c c3 83 2f 3a 5d 3d ┆Ch/! <6 M)(:^=~ Bt/I:\=2#<C /:]=┆
0x43c80…43ca0 32 23 3c 21 20 3c 36 06 cd a9 28 c9 3a 67 3d fe 00 ca 97 2f cd 6a 27 21 0d 00 22 a8 3d 7e 1f d2 ┆2#<! <6 M)(I:g=~ J /Mj'! "(=~ R┆
0x43ca0…43cc0 aa 2f 21 af 3d 36 6a cd 01 28 2a a8 3d 7e 0f 1f d2 bb 2f 21 af 3d 36 6e cd 01 28 2a a8 3d 7e 0f ┆*/!/=6jM (*(=~ R;/!/=6nM (*(=~ ┆
0x43cc0…43ce0 0f 1f d2 cd 2f 21 af 3d 36 69 cd 01 28 2a a8 3d 7e 0f 0f 0f 1f d2 e0 2f 21 af 3d 36 57 cd 01 28 ┆ RM/!/=6iM (*(=~ R`/!/=6WM (┆
0x43ce0…43d00 2a a8 3d 7e 0f 0f 0f 0f 1f d2 f4 2f 21 af 3d 36 6c cd 01 28 2a a8 3d 7e 0f 0f 0f 0f 0f 1f d2 09 ┆*(=~ Rt/!/=6lM (*(=~ R ┆
0x43d00…43d20 (67, 0, 13) 43 0e ff 00 13 43 41 86 31 20 20 20 20 20 20 20 20 20 20 02 20 20 20 20 20 20 20 20 20 20 20 20 ┆C CA 1 ┆
0x43d20…43d40 20 20 20 20 20 20 20 20 20 02 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 ┆ ┆
0x43d40…43d60 20 20 20 20 20 20 20 20 20 20 20 20 20 20 03 37 04 d2 c5 cc c9 c1 c2 c9 cc c9 d4 d9 ac cd c1 c9 ┆ 7 RELIABILITY,MAI┆
0x43d60…43d80 ce d4 c1 c9 ce c1 c2 c9 cc c9 d4 d9 a0 c1 ce c4 a0 c1 d6 c1 c9 cc c1 c2 c9 cc c9 d4 d9 a0 c1 ce ┆NTAINABILITY AND AVAILABILITY AN┆
0x43d80…43da0 c1 cc d9 d3 c9 d3 20 03 03 04 54 68 69 73 20 63 68 61 70 74 65 72 20 70 72 6f 76 69 64 65 73 20 ┆ALYSIS This chapter provides ┆
0x43da0…43dc0 74 68 65 20 64 65 74 61 69 6c 65 64 20 61 6e 61 6c 79 73 69 73 20 6f 66 20 74 68 65 20 72 65 6c ┆the detailed analysis of the rel┆
0x43dc0…43de0 69 61 62 69 6c 69 74 79 20 61 6e 64 20 6d 61 69 6e 74 61 69 6e 61 62 69 6c 69 74 79 20 70 72 6f ┆iability and maintainability pro┆
0x43de0…43e00 76 69 64 65 64 20 62 79 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 65 71 75 69 70 6d 65 6e 74 2e ┆vided by the proposed equipment.┆
0x43e00…43e20 (67, 0, 14) 43 0f ff 00 13 43 41 20 45 6d 70 68 61 73 69 73 20 68 61 73 20 62 65 65 6e 20 67 69 76 65 6e 20 ┆C CA Emphasis has been given ┆
0x43e20…43e40 74 6f 20 69 6e 63 6c 75 64 65 20 74 68 65 20 61 6e 61 6c 79 73 69 73 20 66 6f 72 20 74 68 65 20 ┆to include the analysis for the ┆
0x43e40…43e60 72 61 6e 67 65 20 63 6f 76 65 72 65 64 20 62 79 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 73 79 ┆range covered by the proposed sy┆
0x43e60…43e80 73 74 65 6d 20 61 72 63 68 69 74 65 63 74 75 72 65 2e 20 46 75 72 74 68 65 72 6d 6f 72 65 2c 20 ┆stem architecture. Furthermore, ┆
0x43e80…43ea0 64 65 74 61 69 6c 65 64 20 69 6e 66 6f 72 6d 61 74 69 6f 6e 20 77 69 74 68 20 72 65 73 70 65 63 ┆detailed information with respec┆
0x43ea0…43ec0 74 20 74 6f 20 66 61 69 6c 75 72 65 20 72 61 74 65 73 20 61 6e 64 20 72 65 70 61 69 72 20 74 69 ┆t to failure rates and repair ti┆
0x43ec0…43ee0 6d 65 73 20 69 73 20 70 72 6f 76 69 64 65 64 20 66 6f 72 20 74 68 65 20 76 61 72 69 6f 75 73 20 ┆mes is provided for the various ┆
0x43ee0…43f00 63 6f 6d 70 6f 6e 65 6e 74 73 20 61 6e 64 20 6d 6f 64 75 6c 65 73 20 69 6e 63 6c 75 64 65 64 20 ┆components and modules included ┆
0x43f00…43f20 (67, 0, 15) 43 00 ff 00 13 43 41 69 6e 20 74 68 65 20 61 72 63 68 69 74 65 63 74 75 72 65 2e 03 03 03 37 2e ┆C CAin the architecture. 7.┆
0x43f20…43f40 31 04 c9 ce d4 d2 cf c4 d5 c3 d4 c9 cf ce 03 03 04 54 68 65 20 61 76 61 69 6c 61 62 6c 69 74 79 ┆1 INTRODUCTION The availablity┆
0x43f40…43f60 20 6f 66 20 74 68 65 20 70 72 6f 70 6f 73 65 64 20 65 71 75 69 70 6d 65 6e 74 20 69 73 20 76 65 ┆ of the proposed equipment is ve┆
0x43f60…43f80 72 79 20 68 69 67 68 20 64 75 65 20 6e 6f 74 20 6f 6e 6c 79 20 74 6f 20 61 20 20 68 69 67 68 20 ┆ry high due not only to a high ┆
0x43f80…43fa0 72 65 6c 69 61 62 69 6c 69 74 79 20 6f 66 20 69 6e 64 69 76 69 64 75 61 6c 20 73 79 73 74 65 6d ┆reliability of individual system┆
0x43fa0…43fc0 20 65 6c 6d 65 6e 74 73 2c 20 62 75 74 20 6e 6f 74 20 6c 65 61 73 74 20 64 75 65 20 74 6f 20 74 ┆ elments, but not least due to t┆
0x43fc0…43fe0 68 65 20 63 68 6f 73 65 6e 20 43 52 38 30 20 63 6f 6d 70 75 74 65 72 20 63 6f 6e 66 69 67 75 72 ┆he chosen CR80 computer configur┆
0x43fe0…44000 61 74 69 6f 6e 2c 20 77 68 65 72 65 20 66 75 6e 63 74 69 6f 6e 61 6c 20 6c 69 6b 65 20 65 6c 65 ┆ation, where functional like ele┆
0x44000…44100 (68, 0, 0) 0x00[0x100]
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