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AUI Ethernet Port
Table B–5 AUI Ethernet Port Pin-outs
Pin Source Signal Description
1 Chassis ground
2 XCVR ACOL+ Collision presence
3 System ATX+ Transmit
4 GND Chassis ground
5 XCVR ARX+ Receive
6 XCVR GND Power return
7 CTL+ Not used
8 GND Chassis ground
9 XCVR ACOL- Collision, active low
10 System ATX- Transmit, active low
11 GND Chassis ground
12 XCVR ARX- Receive, active low
13 System +12V Power
14 GND Chassis ground
15 CTL- Control output
Port Pin-outs B–9