Nortel Networks Passport ARN Routers - Manual (Page 130)

Installing and Operating Passport ARN Routers
C-6 114200-E Rev 00
Ethernet Attachment Unit Interface (AUI)
The ARN Ethernet 10BASE-T base module, Ethernet expansion module, and
Ethernet/tri-serial expansion modules contain a 10BASE-T standard 802.3 AUI
DB-15 receptacle with a slide lock.
Table C-3 shows the pin assignments for the standard 15-pin AUI receptacle on
the ARN base or expansion module and identifies its pin locations.
Note: The AUI is designed only for connection to a transceiver. Connecting
the AUI directly to an AUI on an Ethernet station (without a transceiver)
violates IEEE 802.3 standards.
Table C-3. AUI Pin Assignments
Pin Assignment Pin No. Signal Name
1 GND
2 CI-A
3 DO-A
4 GND
5 DI-A
6 +12 V DC Return
7 Not used
8 Not used
9 CI-B
10 DO-B
11 GND
12 DI-B
13 +12 V DC
14 GND
15 GND
Pin 1 Pin 8
Pin 9 Pin 15
CAB0107A