Instruction manual

HARDWARE DESCRIPTION
ADU Connections
Figures 4-34 and 4-35 provide connection information for data terminals and associated
single-line or multiline voice terminals.
The voice terminal and data terminal leads are
separated at the SIP with a Y-adapter and are connected to their respective station ports.
Figure 4-36 presents a typical Multiple Asynchronous Data Unit (MADU) connection.
Figure 4-37 shows local power connections for Z3A1, Z3A2, and Z3A4 ADUs.
Auxiliary Equipment Connections
Diagrams for auxiliary equipment connections are included with the specific feature
descriptions in Section 2.
SYSTEM 25
CABINET
PART OF
OCTOPUS
PART OF
CABLE
SIP
ZTN78
SINGLE-LINE
C2
SIP W1 B1
C5
OR
VOICE
ADAPT.
TERMINAL
TN742
(NOTE)
LEGEND:
ZTN78 - TIP RING CP
TN742 -
ANALOG LINE CP
B1 - TYPICAL-103A CONNECTING BLOCK*
C2 - OCTOPUS CABLE (WP90780) - PEC 2720-05P
C5 - MODULAR CORD (D4BU-87) FURNISHED WITH SET
W1
- 4-PAIR INSIDE WIRING CABLE*
NOTE: RANGE LESS THAN 2000 FEET FROM SYSTEM CABINET, USE ZTN-78 CP.
RANGE MORE THAN 2000 FEET BUT LESS THAN 1300 OHMS† (LOOP RESISTANCE)
FROM SYSTEM CABINET, USE TN742 CP. FIVE SINGLE-LINE VOICE
TERMINALS CAN BE BRIDGED WHEN USING A TN742 CP; HOWEVER, ONLY TWO
MAY BE OFF-HOOK AT ONE TIME.
* FURNISHED BY INSTALLER
† - INCLUDES TELEPHONE/TERMINAL
Figure 4-27.
On-Premises
Single-Line Voice Terminal Connections
4-68