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
