Aui Ethernet Port Pin-Outs - DEC 3000 800 Owner's Manual

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