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

7305S Voice Terminal
SYSTEM
SYSTEM 85
DEFINITY G2
DEFINITY G1 & G3
SYSTEM 75
Note: Range may be extended to 2,000 feet (610m) for 24- or 26-AWG wire by adding
local -48 volt DC power in the satellite closet. Power supplies such as the 346A or
329A may be connected to the fourth pair from the terminals to obtain the increased
range. These power supplies must be within 250 feet of the terminals.

Power Requirements

The 7305S voice terminal is powered by the tip and ring leads. If the 7305S voice terminal is
equipped with the S202A or S102A speakerphone or the 500A headset adapter, auxiliary power
will be required for the adjunct. Refer to the ADJUNCT POWER section of this manual.

Power Failure Operation

The 7305S voice terminal cannot be used as an emergency station during power failure transfer
conditions.
FCC Registration
The 7305S voice terminal is not FCC registered.
3-84
PORT BOARD ADJUNCTS
ANN17B 0
1
ANN17B 0
1
TN762B -
TN762 -
NOMINAL MAXIMUM RANGE
IN FEET (METERS) (See NOTE)
24 AWG
1,000 (305) 650 (198)
700 (213) 450 (137)
1,000 (305) 650 (198)
700 (213) 450 (137)
1,000 (305) 750 (229)
1,000 (305) 750 (229)
26 AWG