AT&T System 85 manual Distance Limitations, Button Numbering

CALLMASTER® and CALLMASTER® II and III Voice Terminals

Distance Limitations

The maximum allowable distances the CALLMASTER voice terminals can be located from the DEFINITY G1, G2, G3, System 75, or System 85 cabinet is shown in the table below.

		NOMINAL MAXIMUM RANGE
SYSTEM	PORT BOARD	IN FEET (METERS) (SEE NOTE)
		24 AWG	26 AWG
DEFINITY G2	SN270B	3,400 (1,034)	2,200 (671)
SYSTEM 85	TN754	3,400 (1,034)	2,200 (671)
DEFINITY G1 & G3
SYSTEM 75	TN754	3,400 (1,034)	2,200 (671)

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.

In 2-wire installations, the CALLMASTER III can be connected to a TN2181 port board.

Power Requirements

The CALLMASTER voice terminals receive power from the system and do not require any exter- nal power supply. However, adjunct equipment connected to the CALLMASTER II or III needs its own power supply.

Switch Administration

The 602 CALLMASTER and CALLMASTER II and III can be used with DEFINITY G1, G2, G3, System 75 (R1V3) and System 85 (R2V2 through R2V4). The 602 CALLMASTER can be administered as itself. The CALLMASTER II and the CALLMASTER III must then be aliased as a 602 CALLMASTER.

Button Numbering

The following button diagrams of the 602 CALLMASTER and CALLMASTER II and III voice ter- minals will help you administer both of these voice terminals connected to a System 75 (R1V3 or later) or DEFINITY G1 and G3 and to a System 85 (R2V2 or later) or DEFINITY G2.

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