AT&T System 75 Wiring Diagram page 123

CHAPTER 3. EQUIPMENT ROOM DESIGN
USAGE:
IDENTIFIES CONTROL CARRIER OUTPUTS (AUXILIARY) AND
Z1A EMERGENCY TRANSFER UNIT CIRCUITS
CODE NO:
222A
Figure 3-25. Z1A Emergency Transfer Unit and Control Carrier Out-
puts (AUXILIARY) Label for 110-Type Terminal
Blocks—System 75 XE
574-5 POWER TRANSFER UNIT AND CONTROL CARRIER OUTPUTS
(AUXILIARY) LABELS
The labels shown in Figures 3-26 and 3-27 identify the leads to the
574-5 power transfer unit and the control carrier AUXILIARY connector
outputs for System 75 and 75 XE, respectively. The top half of the labels
identify the 574-5 power transfer unit and the bottom half of the labels
identify the control carrier AUXILIARY connector outputs. The control
carrier AUXILIARY connector outputs are the same as described for the
auxiliary circuit and control carrier outputs labels.
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