AT&T 3B2 Maintenance Reference Manual page 146

Version 2
Model 400
A bundle of 47 wires from the power supply divides into six destination cable-connector
assemblies. These connect to the floppy drive, cartridge tape drive, (one or two) hard disk
dri.ve(s), system board, and I/O backplane (see Figure 6-1).
TO TOP HARD DISK
(IF EQUIPPED)
ORANGE CONNECTOR
r
TO BACKPLANE
TOBOTIOM
HARD DISK
RED
CONNECTOR TO
~
SYSTEM BOARD
TO
CARTRIDGE
TAPEl
" ' - - TO FLOPPY DISK UNIT
Figure 6-1. 3B2/400 power cable connectors
6-6 AT&T 382 Computer Maintenance Reference Manual