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⟦fce1a3624⟧ Wang Wps File
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Names: »~ORPHAN43.00«
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└─⟦c15cad553⟧ Bits:30006230 8" Wang WCS floppy, CR 0124A
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WangText
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
5. LINE CIRCUIT STANDARDS ND INTERFACES .......
5.1 NICS TARE .................................
5.3 BROADCAST CIRCUIT .........................
5.4 SHIP-TO-SHORE Circuits ....................
5.5 MARITIME REAR LINK (MRL) ..................
5.6 CIRCUIT TO STANDBY MC .....................
5.7 TERMINAL CIRCUIT ..........................
…86…1 …02… …02… …02… …02…
5. L̲I̲N̲E̲ ̲C̲I̲R̲C̲U̲I̲T̲ ̲S̲T̲A̲N̲D̲A̲R̲D̲S̲ ̲A̲N̲D̲ ̲I̲N̲T̲E̲R̲F̲A̲C̲E̲S̲
The rules and standards to be followed when implementing
the different line circuits and interfaces for the
MPF system will comply wit the standards described
in IFB Part III annex 5D to 5H and 5K to 5N with reference
to circuit characteristics and annex 5A, 5B, 5C and
5I with reference to message formats and control.
The line circuit standards to be followed will be the
CCITT' recommendation V24 and V28. All communication
lines leaving the MPF area will be implemented with
secure wires using low level signalling.
The line transmission quality for dedicated lines and
local user lines will be within the CCITT's Recommedations
G.132 and G.133 - Orange Book, Vol. III, Geneva 76.
The MPF subsystem exchange ACP127 and ACP126 messages
with shore based commanders via the NICS TARE and TRC
systems and with ship-borne commanders via the Ship-to-Shore,
Broadcast and MR subsystems. Service messages for
communications control will be composed and dispatched
automatically, as part of the message level protocols.
5.1 N̲I̲C̲S̲ ̲T̲A̲R̲E̲
CR will, for the MPF subsystem, implement an interface
to NICS TARE in accordance wth the Nato approved document
"NICS TARE Interface", CPS/ICD/004 which is used for
the CAMPS project.
This interface document complies fully with Annex 5N
of the IFB except for the following:
- CPS/ICD/004 defines both colocated and remote NICSTARE
connections, only the colocatd connection shall
apply for Crossfox.
- CPS/ICD/004 defines ITA No. 5 as character code.
CR will implement either ITA No. 2 or ITA No.
5. The decision as to which code shall be used
will be made during the design phase.
- CPS/ICD/004 definesthe EDC link protocol document
updated with DCN G2. CR will implement the EDC
link protocol in accordance with the referenced
document, updated with DCN G9, dated 1 May 1981.
5.2 T̲A̲P̲E̲ ̲R̲E̲L̲A̲Y̲ ̲C̲E̲N̲T̲R̲E̲ ̲(̲T̲R̲C̲)̲
The interface to TRC will be implemente in compliance
with the requirements laid down in Annex 5D of the
IFB.
CR has implemented a TRC interface for the CAMPS system
in accordance with the NATO approved document, "TRC,
POINT-TO-POINT CONNECTION Interface", CPS/ICD/007,
which complies ith Annex 5D.
5.3 B̲R̲O̲A̲D̲C̲A̲S̲T̲ ̲C̲I̲R̲C̲U̲I̲T̲
The interface provided for the Broadcast circuits will
have the following characteristics:
a) Physical Interface:
- The connection will be via a crypt/low speed
link. The cryptos will be of type KW7, KW46T
or KW37T.
- The electrical interface will be in accordance
with the CCITT's recommandation V24/V28 low
level specification
- The MPF will control the synchronization of
the Crypto's usig V24 signals and special crypto
control equipment.
- The transmission will be asynchronous simplex
with baud rate of 75 bps.
- A seven bit character code will be used with
one start bit, five data bits, and one stop
bit.
b) F̲u̲n̲c̲t̲i̲o̲n̲a̲l̲ ̲I̲n̲t̲r̲f̲a̲c̲e̲
- The alphabet will be ITA No. 2
- All messages transmitted will conform to
the applicable sections of ACP127 Supp.
1 and 3.
- Messages related to maintenance and control
of the communication lines are either treated
by the supervsor manually or automatically
generated/analyzed automatically by the
MPF automatically.
5.4 S̲h̲i̲p̲-̲t̲o̲-̲S̲h̲o̲r̲e̲ ̲C̲i̲r̲c̲u̲i̲t̲s̲
The interface provided for the Ship-to-Shore circuits
will have the following characteristics:
a) Physical Interface:
- The connection will be vi a low speed crypto
(KW7) link.
- The electrical interface will be in accordance
with the CCITT's recommendation V24/V28 low
level specification.
- The transmission will be asynchronous simplex
with baud rate of 75 bps.
- A seven bit charater code will be used.
b) Functional Interface
- The alphabet will be ITA No. 2
- All messages received will be in either ACP127
format or ACP126 format.
- Messages related to maintenance and control
of the communication lines are laid d
