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7102A and 7102 Plus Voice Terminals
Distance Limitations
The maximum allowable distances of a 7102A or 7102 Plus voice terminal from the DEFINITY
G1, G2, G3, System 75, or System 85 cabinet are shown in the table below.
NOMINAL MAXIMUM RANGE
IN FEET (METERS)
SYSTEM PORT BOARD
24 AWG 26 AWG
SYSTEM 85 SN229 3,500 (1,067) 3,500 (1,067)
SN228B 28,400 (8,662) 17,900 (5,460)
DEFINITY G2 SN229 3,500 (1,067) 3,500 (1,067)
SN228B 28,400 (8,662) 17,900 (5,460)
TN742 15,200 (4,633) 10,000 (3,050)
TN746 3,000 (915) 2,000 (610)
DEFINITY G1 & G3 TN742 15,200 (4,633) 10,000 (3,050)
SYSTEM 75 TN769 15,200 (4,633) 10,000 (3,050)
TN746 3,000 (915) 2,000 (610)
Power Requirements
The 7102 voice terminals are powered by the tip and ring leads. These voice terminals do not
require any external power supply.
Power Failure Operation
The 7102A and the 7102 Plus voice terminals can be used as an emergency station during power
failure transfer conditions but will not support any adjuncts.
If the 7102A or 7102 Plus voice terminal is being used as an emergency station for a DEFINITY
G1 or G3 or System 75 that is equipped with a Z1A Emergency Transfer Unit, a ground start
switch (551A and 77A bracket) is required. Installation instructions can be found in the
DEFIN-
ITY Communications System Generic 1 and Generic 3 Wiring Guide
, 555-204-111.
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