AT&T System 25 User Manual

Page 155

INSTALLATION

LEGEND :

TN763 - AUXILIARY

A -

B1 -
C5 -
C6 -
P1 -
W1 -

278A

SINGLE-ENDED

T R U N K C P

25 PAIR CONNECTOR CABLE (A25D)

TYPICAL - 103A CONNECTING BLOCK
MODULAR CORD (D4BU-87)
SINGLE-ENDED MODULAR CORD
KS-22911, L2, POWER SUPPLY, -48 VOLT DC
INSIDE WIRING CABLE (4-PAIR)

ADAPTER -REQUIRES –24 VOLT ZENER DIODE KIT OF PARTS

NOTES :

1. APPARATUS CODE D-181523 INCLUDES

66E3-25 BLOCK CONNECTOR AND CABLE B25A 15/DE.

2. APPARATUS CODE D-181524 INCLUDES C6, P1, 278A

ADAPTER AND ZENER KIT.

Figure 2-56.

Paging System Connection to TN763 Circuit Pack (278A

A d a p t e r R e q u i r e d )

2-126