viii Contents
Trident Planning and Installation Guide
Digital Output Module Indicators ............................................................. 186
DO Status Indicators ............................................................................. 187
DO Power/Load Indicator ...................................................................... 188
DO Point Indicator ................................................................................. 188
Pulse Input Module Indicators .................................................................. 189
PI Status Indicators ............................................................................... 190
PI Field Fault Indicator .......................................................................... 191
PI Point Indicators ................................................................................. 191
Solid-State Relay Output Module Indicators ........................................... 192
SRO Status Indicators ........................................................................... 193
SRO Point Indicators ............................................................................. 194
Replacing Modules .................................................................................... 195
Guidelines for Replacing Modules ......................................................... 195
Replacing a Main Processor Module ..................................................... 196
Replacing a Communication Module ..................................................... 197
Replacing an I⁄O Module Without a Hot Spare ...................................... 198
Replacing an I⁄O Module With a Hot Spare ........................................... 199
Appendix A Pin-Outs for Cables and Connectors ..................................... 201
MP Baseplate Connectors ......................................................................... 202
Ethernet TriStation Connector ............................................................... 202
Modbus RS-232/RS-485 Serial Connector ........................................... 202
RS-232 Pin-Outs ............................................................................. 203
RS-232 Signal Descriptions ............................................................ 203
RS-485 Pin-Outs ............................................................................. 204
RS-485 Signal Descriptions ............................................................ 204
CM Baseplate Connectors ........................................................................ 205
Modbus RS-232/RS-485 Serial Connector ........................................... 205
RS-232 Pin-Outs ............................................................................. 206
RS-232 Signal Descriptions ............................................................ 206
RS-485 Pin-Outs ............................................................................. 207
RS-485 Signal Descriptions ............................................................ 207
Ethernet 10BaseT Net1 Connectors ..................................................... 208
Ethernet 100BaseTX Net2 Connectors ................................................. 208
AUI 10 Megabit Ethernet MAU Connectors ........................................... 209
MII Ethernet MAU Connectors .............................................................. 209
10BaseT Network Cables for TriStation ................................................... 212
10BaseT Cross-Over Cable .................................................................. 212
10BaseT Straight-Through Cable .......................................................... 213
RS-232 Modbus Serial Cable .................................................................... 214
RS-485 Modbus Serial Cables .................................................................. 215
Cable Selection ..................................................................................... 217
Cable Termination ................................................................................. 217
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