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Length: 17920 (0x4600)
Types: RcTekst
Names: »99109881.WP«
└─⟦dedaa6eab⟧ Bits:30005866/disk1.imd Dokumenter i RcTekst format (RCSL 99-1-*)
└─⟦this⟧ »99109881.WP«
╱04002d4e0a0006000000000201413100000000000000000000000000000000000000000000000000050f19232d37414b555f69737d8791ff04╱
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╞ ╞ ╞ i↲
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┆b0┆┆a1┆FOREWORD↲
↲
↲
The present edition of the installation guide includes↲
the information found earlier in the leaflet RCSL No.↲
42-i1757, the first edition of the installation guide,↲
RCSL No. 42-i1685, January 1982, and the second edition↲
of the installation guide, RCSL No. 42-i2042, May 1982.↲
↲
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╞ ╞ ╞ ii↲
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════════════════════════════════════════════════════════════════════════
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╞ ╞ ╞ iii↲
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┆b0┆┆a1┆CONTENTS↲
↲
↲
1. INTRODUCTION ................................... 1↲
↲
2. INSTALLATION PLANNING .......................... 2↲
↲
3. RC855 EQUIPMENT ................................ 3↲
↲
3.1 Survey .................................... 3↲
3.2 Size and Weight ........................... 4↲
3.3 Environment ............................... 4↲
↲
4. INSTALLATION ................................... 5↲
↲
4.1 RC855 Cable Connections ................... 5↲
4.2 RcCircuit ................................. 8↲
4.3 DualCircuit ............................... 9↲
4.4 Printer ................................... 12↲
↲
↲
┆a1┆Appendix┆e1┆↲
↲
↲
A. REFERENCES ..................................... 13↲
↲
↲
╞ ┆a1┆Figures↲
↲
↲
╞ 1: Back Panel ..................................... 5↲
╞ 2: RcCircuit Installation ......................... 8↲
╞ 3: Wall Socket (RcCircuit) ........................ 9↲
╞ 4: DualCircuit Installation ....................... 10↲
╞ 5: Mounting of Cable in Socket (DualCircuit) ...... 10↲
╞ 6: Wall Socket, Rear View (DualCircuit) ........... 11↲
↲
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╞ ╞ ╞ iv↲
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┆14┆┆b3┆↲
┆14┆┆b3┆╞ ╞ ╞ ┆0b┆↲
↲
↲
┆b0┆┆a1┆1. INTRODUCTION↲
↲
↲
╞ ┆84┆The RC855 is designed for the construction of distrib-↓
┆19┆┆89┆┄┄uted systems in which each terminal can be alternately ↓
┆19┆┆89┆┄┄used for communication with a host computer and as a ↓
┆19┆┆89┆┄┄local microcomputer.↲
↲
╞ ┆84┆The RC855 is available as a work station, capable of ↓
┆19┆┆89┆┄┄performing different functions according to the soft-↓
┆19┆┆89┆┄┄ware loaded.↲
↲
╞ The RC855 is also available as a dedicated terminal.↲
↲
╞ ┆84┆The work station and the dedicated terminal are based on ↓
┆19┆┆89┆┄┄the same display unit and keyboard. The equipment is in-↓
┆19┆┆89┆┄┄stalled by means of cables, which are connected to the ↓
┆19┆┆89┆┄┄back panel of the base of the display unit. Some of the ↓
┆19┆┆89┆┄┄connections are always used (e.g. keyboard and power); ↓
┆19┆┆89┆┄┄the use of others depends on the configuration (e.g. ↓
┆19┆┆89┆┄┄printer, host computer, and RcCircuit).↲
↲
╞ ┆84┆The following can be connected to the RC855: one or two ↓
┆19┆┆89┆┄┄diskette drives; a Winchester disk drive; or a diskette ↓
┆19┆┆89┆┄┄drive and a Winchester disk drive. A printer can be con-↓
┆19┆┆89┆┄┄nected as well.↲
↲
╞ ┆84┆The RC855 terminal can also be part of an RC855-based ↓
┆19┆┆89┆┄┄cluster configuration as well as an RC890-based cluster ↓
┆19┆┆89┆┄┄configuration.↲
↲
╞ ┆84┆An RC855-based cluster may comprise as many as 8 ter-↓
┆19┆┆89┆┄┄minals (work stations and/or dedicated terminals); these ↓
┆19┆┆89┆┄┄are interconnected by means of RcCircuit, an ordinary ↓
┆19┆┆89┆┄┄twisted-pair cable laid through wall boxes/sockets.↲
↲
╞ ┆84┆An RC890-based cluster may comprise as many as 32 de-↓
┆19┆┆89┆┄┄vices. Devices are printers and work stations and/or ↓
┆19┆┆89┆┄┄dedicated terminals. If a terminal communicates with ↓
┆19┆┆89┆┄┄several hosts at the same time, it will take up a cor-↓
┆19┆┆89┆┄┄responding number of devices in the RC890 cluster.↲
↲
════════════════════════════════════════════════════════════════════════
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↲
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┆b0┆┆a1┆2. INSTALLATION PLANNING↲
↲
↲
╞ ┆84┆The following general requirements should be kept in ↓
┆19┆┆89┆┄┄mind when planning the installation of RC855 equipment:↲
↲
╞ ┆84┆- There must be plenty of room around the equipment.↲
↲
╞ - ┆84┆The temperature must be kept between 16 and 32┆81┆o┆82┆C and ↓
┆19┆┆8b┆┄┄the relative humidity between 40 and 60%. The ideal ↓
┆19┆┆8b┆┄┄conditions are 21┆81┆o┆82┆C and 50%.↲
↲
╞ - ┆84┆Avoid static electricity as much as possible. Dis-↓
┆19┆┆8b┆┄┄charges should not exceed 2 kV.↲
↲
╞ - ┆84┆The equipment requires the following in the way of ↓
┆19┆┆8b┆┄┄power: 220/240 V AC _┆88┆+ 10%, 50 Hz _┆88┆+ 2 Hz.↲
↲
╞ - ┆84┆All sockets must be grounded with a resistance of 10 ↓
┆19┆┆8b┆┄┄ohms or less.↲
↲
╞ - ┆84┆The terminal power supply must originate in a bank by ↓
┆19┆┆8b┆┄┄itself and be separated from any circuit breaker in ↓
┆19┆┆8b┆┄┄the rest of the existing power supply.↲
↲
╞ - Sockets with glow lamps are recommended.↲
↲
╞ ┆84┆Further information on the installation of RC computer ↓
┆19┆┆89┆┄┄equipment in general is found in Ref. 2.↲
↲
════════════════════════════════════════════════════════════════════════
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↲
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┆b0┆┆a1┆3. RC855 EQUIPMENT↲
↲
↲
╞ ┆84┆This chapter contains a survey of the equipment and de-↲
╞ ┆84┆scriptions of size and weight and environment.↲
↲
↲
┆b0┆┆a1┆3.1 Survey↲
↲
↲
╞ ┆a1┆RC No.┆e1┆ ┆a1┆Product Name┆e1┆↲
↲
╞ RC855 terminal (display unit and keyboard)↲
↲
╞ TF158 keyboard locking device for RC855↲
╞ TF224 badge reader for RC855↲
╞ TF667 badge reader for RC855, x1xx↲
↲
╞ TF663S RC855 modem cable, short (5 m)↲
╞ TF663M RC855 modem cable, medium (12 m)↲
╞ TF663L RC855 modem cable, long (25 m)↲
↲
╞ TF666XS RC855 DCE cable, short (5 m)↲
╞ TF666XM RC855 DCE cable, medium (12 m)↲
╞ TF666XL RC855 DCE cable, long (40 m)↲
↲
╞ TF664 RcCircuit, wall socket with base for sur-↲
╞ ╞ face mounting↲
╞ TF665 RcCircuit, wall socket with base for re-↲
╞ ╞ cessed mounting↲
╞ TF656 RcCircuit, wall socket, separate unit↲
╞ TF661 RcCircuit, terminal connecting cable (5 m)↲
↲
╞ RC860B matrix printer, 250 cps, 132 char.positions↲
╞ RC860B/OCR matrix printer, 250 cps, 132 char.positions,↲
╞ ╞ OCR-B↲
╞ RC862 matrix printer, 120 cps, 80 char.positions↲
╞ RC867 matrix printer, 120 cps, 136 char.positions↲
╞ RC601 matrix printer, 200/50 cps, 136 char.pos↲
╞ RC603 matrix printer, 180 cps, 80 char.positions↲
╞ RC611 daisywheel printer, 40 cps, 132-198 char.pos↲
╞ RC868 daisywheel printer, 55 cps, 132-198 char.pos↲
↲
╞ RC762 diskette drive, 8" diskette↲
╞ RC764 double diskette drive, 8" diskettes↲
╞ RC874/1 disk system, 2 x 0.8 MB, 5 1/4" diskettes↲
╞ RC874/2 disk system, 0.8 MB + 10 MB, 5 1/4" disk-↲
╞ ╞ ette + Winchester disk↲
╞ RC874/3 disk system, 10 MB, 5 1/4" Winchester disk↲
╞ RC875/1 diskette drive, 1.1 MB, 8" diskette↲
╞ RC875/2 diskette drive, 2 x 1.1 MB, 8" diskettes↲
╞ RC876 disk system, 10 MB↲
↲
╞ RC890-2 control unit, BSC protocol↲
╞ RC890-12 control unit, SNA/SDLC protocol↲
↲
════════════════════════════════════════════════════════════════════════
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↲
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┆b0┆┆a1┆3.2 Size and Weight↲
↲
↲
╞ ┆a1┆RC No.┆e1┆╞ ┆a1┆Height┆e1┆ ┆a1┆Width┆e1┆ ┆a1┆Depth┆e1┆ ┆a1┆Weight┆e1┆↲
↲
╞ RC855↲
╞ - display unit * 39-49 cm 47 cm 33 cm 30 kg↲
╞ - keyboard╞ 8.5 cm 44 cm 25 cm 4 kg↲
↲
╞ * Height is adjustable. Depth depends on tilt of display↲
╞ screen housing.↲
↲
╞ Size and weight for peripherals (printers, storage de-↲
╞ vices, and control units) are described on the data↲
╞ sheet for the equipment in question.↲
↲
↲
┆b0┆┆a1┆3.3 Environment↲
↲
↲
╞ ┆a1┆Ambient┆e1┆ ┆a1┆Relative┆e1┆ ┆a1┆Heat┆e1┆ ┆a1┆Power┆e1┆↲
╞ ┆a1┆RC No.┆e1┆ ┆a1┆Temperature┆e1┆ ┆a1┆Humidity┆e1┆ ┆a1┆Dissipation┆e1┆ ┆a1┆Consumption┆e1┆↲
↲
╞ RC855 10-35┆81┆o┆82┆C 40-80% * 288 kJ/h 80 W↲
↲
╞ * noncondensing↲
↲
╞ Environment for peripherals (printers, storage devices,↲
╞ and control units) is described on the data sheet for↲
╞ the equipment in question.↲
↲
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┆b0┆┆a1┆4. INSTALLATION↲
↲
↲
╞ This chapter contains specific information on RC855↲
╞ cable connections, RcCircuit, and DualCircuit.↲
↲
↲
┆b0┆┆a1┆4.1 RC855 Cable Connections↲
↲
↲
╞ The installation is carried out by means of cable con-↲
╞ nections on the back panel of the base of the RC855 dis-↲
╞ play unit.↲
↲
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╞ Figure 1: Back Panel↲
↲
↲
╞ 1) connector for keyboard cable↲
╞ 2) reset button↲
╞ 3) connector for cable to RcCircuit wall socket↲
╞ 4) connector for printer cable↲
╞ 5) connector for host computer (modem/DCE) cable↲
╞ 6) connector for diskette drive cable↲
╞ 7) connector for power cable with fuse holder↲
╞ 8) power on/off switch↲
↲
↲
╞ The numbers in Fig. 1 are referred to in the description↲
╞ of the RC855 cable connections that follows on the next↲
╞ two pages. Where relevant, the RC order number and part↲
╞ number are included, the latter to facilitate identifi-↲
╞ cation of the cables.↲
↲
╞ In the RC855 terminal, the traditional definition of↲
╞ functions by means of switches has been superseded by↲
╞ program-controlled keyboard entry of configuration para-↲
╞ meters. These parameters are entered in the start-up↲
╞ phase, in accordance with the functionality desired in↲
╞ the subsequent operating phase. For more information,↲
╞ see the operating guide for the software in question.↲
↲
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↲
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╞ ┆a1┆Keyboard Cable┆e1┆╞ ╞ Required: always↲
╞ ╞ ╞ ╞ Delivery: with keyboard↲
╞ ╞ ╞ ╞ Order No: -↲
╞ ╞ ╞ ╞ Part No.: -↲
╞ ╞ ╞ ╞ Length : 1 m↲
↲
↲
╞ ┆a1┆Cable to RcCircuit┆e1┆╞ Required: in cluster configura-↲
╞ ╞ ╞ ╞ ╞ tions; cable leads to↲
╞ ╞ ╞ ╞ ╞ RcCircuit wall socket↲
╞ ╞ ╞ ╞ ╞ (cf. Sect. 4.2)↲
╞ ╞ ╞ ╞ Delivery: on separate order↲
╞ ╞ ╞ ╞ Order No: TF661↲
╞ ╞ ╞ ╞ Part No.: CBL926↲
╞ ╞ ╞ ╞ Length : 5 m↲
↲
↲
╞ ┆a1┆Printer Cable┆e1┆╞ ╞ Required: when printer is used↲
╞ ╞ ╞ ╞ Delivery: with printer↲
╞ ╞ ╞ ╞ Order No: -↲
╞ ╞ ╞ ╞ Part No.: RC862: CBL909↲
╞ ╞ ╞ ╞ ╞ RC867: CBL909↲
╞ ╞ ╞ ╞ ╞ RC868: CBL977↲
╞ ╞ ╞ ╞ Length : normally 5 m (other↲
╞ ╞ ╞ ╞ ╞ lengths on separate↲
╞ ╞ ╞ ╞ ╞ order)↲
╞ ╞ ╞ ╞ Note : separate socket for↲
╞ ╞ ╞ ╞ ╞ printer↲
↲
↲
┆a1┆Host Computer Cable┆e1┆╞ Required: for communication↲
╞ ╞ ╞ ╞ ╞ with host computer↲
╞ ╞ ╞ ╞ Delivery: on separate order↲
╞ ╞ ╞ ╞ Order No: TF663S/M/L↲
╞ ╞ ╞ ╞ Part No.: CBL585/604/605↲
╞ ╞ ╞ ╞ Length : 5/12/25 m↲
╞ ╞ ╞ ╞ Note : separate socket for↲
╞ ╞ ╞ ╞ ╞ modem must originate↲
╞ ╞ ╞ ╞ ╞ in same switchboard↲
╞ ╞ ╞ ╞ ╞ as socket for termi-↲
╞ ╞ ╞ ╞ ╞ nal↲
↲
╞ ╞ ╞ ╞ ╞ Modem equipment may↲
╞ ╞ ╞ ╞ ╞ occasion further re-↲
╞ ╞ ╞ ╞ ╞ quirements.↲
↲
════════════════════════════════════════════════════════════════════════
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╞ ┆a1┆Diskette Drive Cable┆e1┆ Required: when diskette drive is↲
╞ ╞ ╞ ╞ used↲
╞ ╞ ╞ Delivery: with diskette drive↲
╞ ╞ ╞ Order No: -↲
╞ ╞ ╞ Part No.: -↲
╞ ╞ ╞ Length : between terminal and↲
╞ ╞ ╞ ╞ drive: 1 m; between↲
╞ ╞ ╞ ╞ drives: 1 m↲
╞ ╞ ╞ Note : when two drives are↲
╞ ╞ ╞ ╞ daisychained, drive↲
╞ ╞ ╞ ╞ "2" is connected to↲
╞ ╞ ╞ ╞ terminal, and drive↲
╞ ╞ ╞ ╞ "1" to drive "2"↲
↲
╞ ╞ ╞ ╞ Each drive requires a↲
╞ ╞ ╞ ╞ separate socket.↲
↲
↲
╞ ┆a1┆Power Cable┆e1┆╞ Required: always↲
╞ ╞ ╞ Delivery: with terminal↲
╞ ╞ ╞ Order No: plug complying with↲
╞ ╞ ╞ ╞ national standard im-↲
╞ ╞ ╞ ╞ plied by specification↲
╞ ╞ ╞ ╞ of national character↲
╞ ╞ ╞ ╞ set↲
╞ ╞ ╞ Part No.: Danish↲
╞ ╞ ╞ ╞ Public Sector: CBL440↲
╞ ╞ ╞ ╞ Dano-Norwegian: CBL440↲
╞ ╞ ╞ ╞ Swedish: CBL973↲
╞ ╞ ╞ ╞ German: CBL973↲
╞ ╞ ╞ ╞ USASCII: CBL973↲
╞ ╞ ╞ ╞ UKASCII: CBL927↲
╞ ╞ ╞ Length : normally 2.5 m (other↲
╞ ╞ ╞ ╞ lengths on separate↲
╞ ╞ ╞ ╞ order)↲
╞ ╞ ╞ Note : CBL440: Danish plug;↲
╞ ╞ ╞ ╞ CBL973: Schuko plug;↲
╞ ╞ ╞ ╞ CBL927: no plug, and↲
╞ ╞ ╞ ╞ only 2 m long↲
↲
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┆b0┆┆a1┆4.2 RcCircuit↲
↲
↲
╞ The RcCircuit installation consists of a twisted-pair↲
╞ cable, laid through wall sockets. Any number of sockets↲
╞ may be installed, but eight terminals at most can be↲
╞ connected; with an RC890, however, as many as thirty-two↲
╞ terminals can be connected. The total cable length may↲
╞ not exceed 1500 meters.↲
↲
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↲
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╞ Figure 2: RcCircuit Installation↲
↲
↲
╞ Cable type:╞ ╞ 1x2x0.6 mm twisted-pair↲
╞ ╞ ╞ ╞ (e.g. NEK PT/CN-1)↲
╞ Cable length:╞ ╞ max. 1500 m↲
╞ Wall socket/base, set↲
╞ - for surface mounting: TF664↲
╞ - for recessed mounting: TF665↲
╞ Wall socket, separate unit: TF656↲
╞ Terminal connecting cable: TF661↲
↲
↲
╞ The wall socket is available with a base for surface↲
╞ mounting (RC Order No. TF664) or with a base for re-↲
╞ cessed mounting (RC Order No. TF665). The socket base↲
╞ may possibly be obtainable locally from another supplier↲
╞ (surface mounting: LK-NES type 102H1030; recessed mount-↲
╞ ing: LK-NES type 102H1041), in which case the socket can↲
╞ be supplied as a separate unit (RC Order No. TF656).↲
↲
╞ The customer normally arranges for installation of the↲
╞ RcCircuit cable, including the empty socket bases. In-↲
╞ stallation of wall sockets is normally ordered at RC↲
╞ (separately charged).↲
↲
╞ If RcCircuit is laid parallel with power lines, it can↲
╞ be done in separate canals of the same cable trough.↲
↲
════════════════════════════════════════════════════════════════════════
↓
↲
↲
╞ Note: When the wall sockets are installed, the resistor,↲
╞ ╞ marked 120E, on the back of the socket must be re-↲
╞ ╞ moved. ┆a1┆This does not apply┆e1┆ to the two sockets that↲
╞ ╞ form the extremities of the installation (imped-↲
╞ ╞ ance adaption). See Fig. 3.↲
↲
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╞ Figure 3: Wall Socket (RcCircuit)↲
↲
↲
┆b0┆┆a1┆4.3 DualCircuit↲
↲
↲
╞ A double twisted-pair cable constitutes the DualCircuit↲
╞ installation. The one cable is used as RcCircuit (cf.↲
╞ Sect. 4.2). The other cable, Circuit II, is used for↲
╞ communication with the RC3900 series. The number of de-↲
╞ vices that can be connected to the RcCircuit part of↲
╞ DualCircuit is described in Chapter 1. The number of de-↲
╞ vices that can be connected to the Circuit II part is↲
╞ thirty-two. These devices are address-controlled, and an↲
╞ address is used for each logical function (printer, ter-↲
╞ minal, and so on).↲
↲
╞ A further description of Circuit II and the associated↲
╞ protocol is found in Ref. 3.↲
↲
════════════════════════════════════════════════════════════════════════
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╞ Figure 4: DualCircuit Installation↲
↲
↲
╞ Cable type:╞ ╞ 2x2x0.6 mm twisted-pair↲
╞ ╞ ╞ ╞ (e.g. NEK PT/CN-1)↲
╞ Cable length:╞ ╞ max. 1500 m↲
╞ Wall socket:╞ ╞ TF669↲
╞ Terminal connection cable: TF673↲
↲
↲
╞ The wall sockets are designed for mounting on socket↲
╞ bases for the LK-NES Plantangent series.↲
↲
╞ The customer normally arranges for installation of the↲
╞ DualCircuit cable, including the empty socket bases. In-↲
╞ stallation of wall sockets is normally ordered at RC↲
╞ (separately charged).↲
↲
╞ If DualCircuit is laid parallel with power lines, it can↲
╞ be done in separate canals of the same cable trough.↲
↲
╞ Note: When the wall sockets are installed, the two re-↲
╞ ╞ sistors on the back of the socket must be removed.↲
╞ ╞ ┆a1┆This does not apply┆e1┆ to the two sockets that form↲
╞ ╞ the extremities of the installation (impedance ad-↲
╞ ╞ aption). See Fig. 5.↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
╞ Figure 5: Mounting of Cable in Socket (DualCircuit)↲
↲
════════════════════════════════════════════════════════════════════════
↓
↲
↲
╞ The one set of wires is mounted in 1 and 4, the other↲
╞ set in 2 and 3. The wall socket is installed with the↲
╞ guideway in the socket turned up.↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
↲
╞ Figure 6: Wall Socket, Rear View (DualCircuit)↲
↲
↲
╞ ┆b0┆┆a1┆Delivery↲
↲
↲
╞ ┆a1┆Cable Type╞ Length Delivery Remarks ↲
↲
╞ A CIRCUIT max. by order Customer arranges↲
╞ ╞ ╞ 1500 m╞ ╞ for installation of↲
╞ ╞ ╞ ╞ ╞ DualCircuit cable,↲
╞ ╞ ╞ ╞ ╞ terminated by wall↲
╞ ╞ ╞ ╞ ╞ sockets. These are↲
╞ ╞ ╞ ╞ ╞ ordered at RC, who↲
╞ ╞ ╞ ╞ ╞ carry out installa-↲
╞ ╞ ╞ ╞ ╞ tion according to↲
╞ ╞ ╞ ╞ ╞ account rendered.↲
╞ --------------------------------------------------------↲
↲
╞ B telephone 1.5 m╞ with modem↲
╞ cable↲
╞ --------------------------------------------------------↲
↲
╞ C TF672╞ 5 m╞ with╞ Separate invoice.↲
╞ (SINGLE)╞ ╞ equipment╞ For Circuit I only.↲
↲
╞ D TF673╞ 5 m╞ ╞ For DualCircuit.↲
╞ (DUAL)↲
╞ --------------------------------------------------------↲
↲
╞ E modem╞ 5 m╞ with╞ Other lengths, 12↲
╞ cable╞ ╞ equipment╞ or 25 m, by order.↲
╞ --------------------------------------------------------↲
↲
╞ F keyboard╞ 1 m╞ with↲
╞ cable╞ ╞ equipment↲
↲
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↓
↲
↲
┆b0┆┆a1┆4.4 Printer↲
↲
↲
╞ Several different printers are available as optional↲
╞ equipment. Dependent on the printer type, it may be nec-↲
╞ essary to set internal switches in the printer in ac-↲
╞ cordance with the operating conditions (determined by↲
╞ the terminal system and the jobs involved). This is de-↲
╞ scribed in the documentation accompanying the printer.↲
↲
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↓
↲
↲
┆b0┆┆a1┆A. REFERENCES↲
↲
↲
╞ (1) ╞ RCSL No. 42-i1984:↲
╞ ╞ ┆a1┆RC855 Configuration Guide↲
╞ ╞ T.Schmidt and H.Christensen, March 1982↲
↲
╞ ╞ Abstract: Describes the basic configuration possi-↲
╞ ╞ bilities of the RC855 terminal system.↲
↲
↲
(2) RCSL No. 42-i1621:↲
┆a1┆RC Computer Equipment, Installation Planning↲
J.Rosendahl and H.Christensen, February 1981↲
↲
┆84┆Abstract: It is the concern of this publication to ↓
┆19┆┆8d┆┄┄provide information on the installation planning of ↓
┆19┆┆8d┆┄┄RC computer equipment. Only hardware installation is ↓
┆19┆┆8d┆┄┄covered. General information is given with respect ↓
┆19┆┆8d┆┄┄to the computer room, environment, power supply, ↓
┆19┆┆8d┆┄┄precautionary arrangements, and connection patterns ↓
┆19┆┆8d┆┄┄of the equipment.↲
↲
↲
(3) RCSL No. 44-RT2157:↲
┆a1┆Circuit II Reference Manual↲
May 1984↲
↲
┆84┆Abstract: This manual describes the protocol for the ↓
┆19┆┆8d┆┄┄Circuit II local network and the hardware for the ↓
┆19┆┆8d┆┄┄DualCircuit local network.↲
↲
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↓
↲
┆1a┆┆1a┆ls of the same cable troug