IBM 8285 Nways, Installation And User Manual

Page: 221 / 265

Expansion and Base Connectors
The Expansion Interface cable connects the Base connector on the Expansion Unit to the Expansion
connector on the Base Unit. Each connector is a 68-pin female connector with the following pin
assignments:
Table 9. Pin-Signal Assignments for the Expansion and Base Connectors
Pin Number Signal Name
1–8 DATAOUT7–DATAOUT0
9 DDELOUT
10 BPOUT
11 SPAREOUT
12–19 DATAIN7–DATAIN0
20 DDELIN
21 PKT-SYNC
22 SPAREIN
23
+
CLOCKIN
24
−
CLOCK WRAP
25 PKT-SYNC WRAP
26 PRIZMA TX
27 PRIZMA RX
28 EXPANSION VPD
29 VPD CLOCK
30 BLADE 1 VPD
31
−
BLADE 2 PRESENT
32 BLADE 2 VPD
33
+
BLADE 3 RESET
34
−
BLADE 3 PRESENT
57
−
CLOCKIN
58
+
CLOCK WRAP
59 BPOUT WRAP
60 EXPANSION PRESENT
61 EXPANSION PWR ON
62
−
BOX RESET
63 8kHz
64
+
BLADE 1 RESET
65
−
BLADE 1 PRESENT
66
+
BLADE 2 RESET
67 BLADE 3 VPD
68
−
WRAP PLUG SW PRESENT
Appendix B. Cables, Pins and Connectors
193