Cabling Specifications A-3
Ethernet Connector Signals
Ethernet Connector Signals
Most Ethernet transceivers require an attachment unit interface (AUI) or transceiver cable to connect
an Ethernet transceiver to the EIP Ethernet ports. Some unshielded twisted-pair (10BaseT)
transceivers are compact enough to connect directly to the EIP ports without impeding other
connections. For descriptions of Ethernet transceivers, connectors, and cables, refer to the section
“Ethernet Connection Equipment” in the chapter “Preparing for Installation.”
Table A-3 lists the signals for the 15-pin Ethernet connector used on the EIP.
Table A-3 Ethernet Connector Signals
Pin Circuit Description
3 DO-A Data Out Circuit A
10 DO-B Data Out Circuit B
11 DO-S Data Out Circuit Shield
5 DI-A Data In Circuit A
12 DI-B Data In Circuit B
4 DI-S Data In Circuit Shield
7 CO-A Control Out Circuit A (not used)
15 CO-B Control Out Circuit B (not used)
8 CO-S Control Out Circuit Shield (not used)
2 CI-A Control In Circuit A
9 CI-B Control In Circuit B
1 CI-S Control In Circuit Shield
6 VC Voltage Common
13 VP Voltage Plus
14 VS Voltage Shield
Shell PG Protective Ground
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