AT&T System 75 Wiring Diagram page 119

CHAPTER 3. EQUIPMENT ROOM DESIGN
1
YELLOW
USAGE:
IDENTIFIES 3-PAIR AUXILIARY
CIRCUITS 1 THROUGH 8
CODE NO:
222A
1
YELLOW
USAGE:
IDENTIFIES SSI PORTS 1 THROUGH 6
FORM AN AP.
CODE NO:
222A
Figure 3-21. Auxiliary Port and Circuit Appearance Labels for 110-
Type Terminal Blocks
AUXILIARY CIRCUIT AND CONTROL CARRIER OUTPUTS (AUXILIARY)
LABELS
The labels shown in Figures 3-22 and 3-23 identify auxiliary circuit
appearances and the control carrier AUXILIARY connector outputs for
System 75 and 75 XE, respectively. The top half of the labels identify
3-36