GE D20 Technical Overview page 4

D20/D200 Technical Overview
1.12 System Documentation ..................................................................................................... 22
2. Detailed Technical Description ...............................................................................................25
2.1 Mechanical Design and Packaging ................................................................................... 25
2.1.1 General ......................................................................................................................... 25
2.1.2 Enclosure ...................................................................................................................... 26
2.1.3 Chassis ......................................................................................................................... 26
2.1.4 Peripheral I/O Module Assembly ................................................................................ 28
2.1.5 Environmental .............................................................................................................. 29
2.2 Main Processor.................................................................................................................. 30
2.2.1 Hardware ...................................................................................................................... 30
2.2.2 D20/D200 Main Processor Specifications ................................................................... 31
2.2.3 Firmware ...................................................................................................................... 32
2.2.4 Time Synchronization .................................................................................................. 34
2.3 Ethernet/Memory Expansion (EME) Kit .......................................................................... 36
2.4 I/O Peripheral Modules ..................................................................................................... 37
2.4.1 Types of I/O Peripherals .............................................................................................. 37
2.4.2 Termination Types ....................................................................................................... 38
2.4.3 Hardware ...................................................................................................................... 40
2.4.4 Firmware ...................................................................................................................... 41
2.4.5 I/O Processing .............................................................................................................. 43
2.4.6 D20S Digital Input Peripheral ..................................................................................... 44
2.4.7 D20A Analog Input Peripheral .................................................................................... 48
2.4.8 D20K Control Output Peripheral ................................................................................. 53
2.4.9 Interposing Relay Panel ............................................................................................... 57
2.4.10 D20C Combination I/O Peripheral ............................................................................ 59
2.4.11 D20AC, AC Analog Input Peripheral ........................................................................ 62
2.5 D20/D200 Power Supplies and Chargers ......................................................................... 64
2.5.1 D20 Power Supply Specifications ............................................................................... 65
2.5.2 D20 Battery Chargers .................................................................................................. 66
2.6 D20 Modems ..................................................................................................................... 67
2.6.1 WESDAC 202/V.23 Modem Specifications ................................................................ 68
2.7 Communications ............................................................................................................... 69
2.8 D.20 Link .......................................................................................................................... 70
2.8.1 Designing a Distributed D20 Network......................................................................... 71
2.8.2 D.20 Communication Interface .................................................................................... 72
2.8.3 Adapter Modules .......................................................................................................... 73
2.8.4 D.20 Fiber Optic Splitter .............................................................................................. 73
2.8.5 Communication Cables ................................................................................................ 74
2.8.6 Power Requirements .................................................................................................... 75
2.9 Redundancy....................................................................................................................... 75
2.9.1 D20/D200 Redundancy ................................................................................................ 76
2.9.2 D.20 Link Redundancy ................................................................................................ 77
2.10 Auxiliary Equipment ......................................................................................................... 78
2.10.1 Universal Protocol Converter .................................................................................... 78
2.10.2 Data Display Panel ..................................................................................................... 79
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PRPI-019-3.00-10
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