Instruction manual

HARDWARE DESCRIPTION
SYSTEM 25
PART OF
CABINET
OCTOPUS
CABLE
PART OF SIP
ZTN78
C2
OR
TN742
Y ADAPT.
(WP90851-L1)
TN726
C2
LEGEND:
ZTN78 -
TN742 -
TN726 -
B1 -
C1 -
C2 -
C5 -
W1 -
WP90851-L1 -
Z3A1 ADU -
NOTES:
SIP
W1 B1
C1
Z3A1
ADAPT.
ADU
RS-232
TERMINAL
TIP RING LINE CP
ANALOG LINE CP
DATA LINE CP
SINGLE-
LINE SET
(NOTES)
TYPICAL - 103A CONNECTING BLOCK*
MODULAR CORD (D8W-87) - PEC 2725-07G
OCTOPUS CABLE (WP90780) - PEC 2720-05P
MODULAR CORD (D4BU-87) - FURNISHED WITH SET
4-PAIR INSIDE WIRING CABLE*
MODULAR Y ADAPTER - PEC 2750-T05
E/W 3-FT PLUG-ENDED EIA CORD - PEC 2169-001
1. IF RANGE IS GREATER THAN 2000 FT FROM SYSTEM CABINET,
TERMINAL DATA RATE (SPEED) WILL BE LIMITED (SEE “CABLE
DISTANCE LIMITATIONS” IN SECTION 5)
2. IF RANGE IS LESS THAN 2000 FEET FROM SYSTEM CABINET USE ZTN-78.
IF RANGE IS MORE THAN 2000 FEET BUT LESS THAN 1300 OHM†
(LOOP RESISTANCE) FROM CABINET, USE TN-742
*-FURNISHED BY INSTALLER
†-INCLUDES TELEPHONE/TERMINAL
C5
Figure 4-34.
Typical ADU Connections—
Supporting Data Terminal and Single-Line Voice
Terminal
4-75