AT&T System 75, Wiring Diagram

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Equipment Room Hardware And Cabling Installation
PURPLE
●
CODE NO:
225A
Figure 3-40. Dual-Purpose Emergency Transfer Station Labels
Label Code 225A—Purple Labels (comcode 103 970 059)
Label code number 225A contains the following port labels:
●
●
●
●
(45) purple labels (Figure 3-35) that identify 3-pair port circuits
from the switch. The labels are numbered for the carriers at the
switch, A through E, and each carrier has slots numbered 1 to 20,
except carrier A which is only 1 to 10. Each label identifies 16
3-pair circuits.
(10) unnumbered purple labels (Figure 3-35) that identify 3-pair
port circuits from the switch. Each label identifies 16 3-pair
circuits.
(3) purple labels that identify 3-pair system trunk port circuits from
the switch when WP-90929, List 1 (Figure 3-40) concentrator
cables are used.
(3) purple labels that identify 3-pair system tie trunk port circuits
from the switch when WP-90929, List 3 (Figure 3-39) concentrator
cables are used.
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