Distance Limitations - AT&T Callmaster Series Reference Manual

Cords
Three cords are supplied with the 7404D voice terminal: a coiled 7-foot modular handset cord, 7-
foot modular line cord and an AC power cord. Optional longer cords are available: a 12-foot
handset cord; 14-foot and 25-foot line cords.
Ringing
The 7404D voice terminal has electronic tone ringing with patterns that are set at administration.
The volume control is on the left side of the housing.
Mounting Options
The 7404D voice terminal comes equipped with a nonadjustable data stand.
Color Options
The 7404D voice terminal was available in black and misty cream.

Distance Limitations

The maximum distances the 7404D voice terminal can be located from the system cabinet is
shown in the following table.
SYSTEM
SYSTEM 85
DEFINITY G2
DEFINITY G1 & G3
SYSTEM 75
Note: These ranges can be extended to 5,000 feet (1524 m) for 24 AWG wire and 4,000
feet (1219 m) for 26 AWG wire with the use of a Data Link Protector (DLP). Refer to
EXPOSED PORT PROTECTION.
NOMINAL MAXIMUM RANGE
IN FEET (METERS) (SEE NOTE)
PORT BOARD
24 AWG
SN270B 3,400 (1,034)
TN754 3,400 (1,034)
SN270B 3,400 (1,034)
TN754 3,400 (1,034)
TN754 3,400 (1,034)
7404D Voice Terminal
26 AWG
2,200 (671)
2,200 (671)
2,200 (671)
2,200 (671)
2,200 (671)
3-131