Zenith Data Systems Z-171 PC Series Service Manual page 20

Page 2-3
Installation
Connectors
Table 2-1: Bus Expansion Connector Pinout
PIN NUMBER SIGNALNAME = DESCRIPTION
1 NC No connection.
2 D7 Data bit 7.
3 D6 Data bit 6.
4 D5 Data bit 5.
5 D4 Data bit 4.
6 D3 Data bit 3.
7 D2 Data bit 2.
8 Di Data bit 1.
9 DO Data bit 0.
12 Al9 Address bit 19.
13 Alg Address bit 18.
14 Al7 Address bit 17.
15 Al6 Address bit 16.
16 Al5 Address bit 15.
17 Al4 Address bit 14.
18 Al3 Address bit 13.
19 Al2 Address bit 12.
20 All Address bit 11.
21 Alo Address bit 10.
22 AQ Address bit 9.
23 A8 Address bit 8.