User`s guide

Appendix B Pin-out Tables
B-2 MS-4900, Rev. A
Ethernet
The Ethernet daughtercard contains three connectors: RS-422 (synchronous),
AUI (attachment unit interface, synchronous), and the 10Base T.
Synchronous
RS-422
Pin Function Signal Direction
(DB-15
Connector)
1 Optional signal ground
(set by internal jumper)
n/a
2 Data - input
3 Control - output
4 Data - output
5 Indicate - input
6 Clock - output
7 Clock - input
8 Signal ground n/a
9 Data + input
10 Control + ouput
11 Data + output
12 Indicate + input
13 Clock + output
14 Clock+ input
15 Not used
AUI
Pin Function Signal Direction
1 Frame ground n/a
2 Carrier + input
3 Data + output
4 Frame Ground n/a
5 Data + input
6 Signal Ground n/a
7 No Connect n/a
8 No Connect n/a
9 Carrier - input
10 Data - output
11 Frame Ground n/a
12 Data - input
13 +12 Volts
14 Frame Ground n/a
15 No Connect n/a