
1
2
`
1
2
3
4
5
6
7
8
`
1
2
3
4
5
6
7
8
`
Figure 5-5: Board Interconnect Cable Assemblies
A bit of care should be taken when applying the housings to the PCB interconnect
assemblies – make sure you don’t get caught up in putting the housings on backwards or
anything like that. Not that it’s ever happened, you understand. But it could. It really
could.
Remember that pin 1 of one housing must connect to pin 1 of the housing on the other
side of the wire. The connectors on the PCBs all point in one direction (just as with all of
the ICs). This makes things easy to identify which pin is pin 1 on the PCBs. It also
means that, from the vantage point of the housings that plug into them, it requires you to
remember that, when the “front side” of a housing is pointing to you on one end of the
wire, the backside, with the slots, will be facing you when the cables are laid out straight
in front of you.
Table 5-6: Eight Wire Board Interconnect Cables
Plug/Cable Number
Pin Number/Panel Connections
P106-P202
Pin1 - Register A Bit 8
Pin2 - Register A Bit 7
Pin3 - Register A Bit 6
Pin4 - Register A Bit 5
Pin5 - Register A Bit 4
Pin6 - Register A Bit 3
Pin7 - Register A Bit 2
Pin8 - Register A Bit 1
51