Distance Limitations; Power Requirements; Power Failure Operation - AT&T Callmaster Series Reference Manual

Color Options
The 7103A voice terminal is available in black only.

Distance Limitations

The maximum allowable distances of a 7103A voice terminal from the DEFINITY G1, G2, G3,
System 75, or System 85 cabinet are shown in the table below.
SYSTEM
SYSTEM 85
DEFINITY G2
DEFINITY G1 & G3
SYSTEM 75
1. The 7103A cannot be used with the TN746 Port Circuit Pack.

Power Requirements

The 7103A voice terminal is powered by the tip and ring leads. If the 7103A voice terminal is
equipped with any adjunct, auxiliary power will be required for the adjunct. Refer to the
ADJUNCT POWER section of this manual.

Power Failure Operation

The 7103A voice terminal cannot be used as an emergency station during power failure transfer
conditions.
NOMINAL MAXIMUM RANGE
PORT BOARD
24 AWG
SN229 3,500 (1,067)
SN228B 15,000 (4,572)
SN229 3,500 (1,067)
SN228B 15,000 (4,572)
TN742 15,200 (4,633)
TN746 —
TN742 15,200 (4,633)
TN769 15,200 (4,633)
TN746 —
7103A Fixed Feature Voice Terminal
IN FEET (METERS)
26 AWG
3,500 (1,067)
9,000 (2,743)
3,500 (1,067)
9,000 (2,743)
10,000 (3,050)
—
10,000 (3,050)
10,000 (3,050)
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SEE NOTE
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