Specifications

Hardware Configuration
2–41
Note
This is the only Little Board/486i interface that requires an
external +12V supply.
If you use the AUI interface, you must select it in SETUP. You cannot use the RJ45 interface and the
AUI interfaces simultaneously.
The following table lists the signals and pin numbers of J8 and a MAU-compatible DB-15:
J8 Pin
AUI
DB-15 Pin Function
1 9 - Collision Detect
2 2 + Collision Detect
3 10 - Transmit Data
4 3 + Transmit Data
7 12 - Receive Data
8 5 + Receive Data
9 13 +12V Power
5, 6, 10 4, 11, 6 Ground
1, 7, 8, 14, 15 N/C
Twisted pairs: 1/2, 3/4, 7/8
Table 2-30 AUI Connector (J8)
Connector
Type Mating Connector
RIBBON 3M 3473-7600
DISCRETE WIRE MOLEX HOUSING 22-55-2102
Pin 16-02-0103
Table 2-31 J8 Mating Connector