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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 7100 Series Voice Terminals
8-10The 7102A and 7102 Plus Voice Terminals
8
Distance Limitations
The maximum allowable distances of a 7102A or 7102 Plus voice terminal from
the DEFINITY G1, G2, and G3, DEFINITY ECS, System 75, or System 85 cabinet
are shown in the table below.
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, DEFINITY ECS, 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
DEFINITY Communications
System Generic 1 and Generic 3 Wiring Guide
, 555-204-111.
FCC Registration
The 7102 voice terminals are FCC registered (AS-593M-17706-TE-T).
Table 8-2. Distance Limitations for the 7102A and 7102 Plus Voice Terminals
System Port Board
Nominal Maximum Range in Feet
(Meters)
24 AWG 26 AWG
System 85 SN229
SN228B
3,500 (1,067)
28,400 (8,662)
3,500 (1,067)
17,900 (5,460)
DEFINITY G2 SN229
SN228B
TN742
TN746
3,500 (1,067)
28,400 (8,662)
15,200 (4,633)
3,000 (915)
3,500 (1,067)
17,900 (5,460)
10,000 (3,050)
2,000 (610)
DEFINITY G1 and
G3, DEFINITY
ECS, and System
75
TN742
TN769
TN746
15,200 (4,633)
15,200 (4,633)
3,000 (915)
10,000 (3,050)
10,000 (3,050)
2,000 (610)