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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
1GND
2CI-A
3DO-A
4GND
5DI-A
6 +12 V DC Return
7 Not used
8 Not used
9CI-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