AT&T System 75 Wiring Diagram page 76

NOTE: THIS AC POWER STRIP MUST BE
LOCALLY PROVIDED.
Bulk Power Supply
The 346 modular bulk power supply consists of a 346A1 power panel
and up to three 346A power units (Figure 2-25). The panel has three
2-ampere circuit breakers, one for each 346A power unit (Figure 2-26).
Power panels may be used with one, two, or three power units
connected.
AC POWER STRIP (NOTE)
Figure 2-24. AC Power Strip
Adjunct Power Units
OUTLET
SPACING
3.5 TO 4 INCHES
2-49