AT&T 3 manual Mail System Site Requirements, Mail System Requirements ConditionRequirement

Preparing for Installation

■A sufficient number of touch-tone receivers on the communications system modules. Each 206 and 200 module has one touch-tone receiver; each 400 module has two.

Touch-tone receivers are shared by the mail system and the communications system. The mail system uses one each time it transfers a call, turns a phone’s message light On or Off, or Outcalls. The communications system uses one each time a standard device dials a call (intercom or outside).

The total number of touch-tone receivers required is dependent on the amount and type of traffic that the communications system and the mail system handle. In addition to the touch-tone receivers needed to support all of the standard devices in the communications system, one touch-tone receiver generally is needed for every two mail system ports. A very heavily used system may require more touch-tone receivers.

Mail System Site Requirements

Table 2-1. Mail System Requirements

ConditionRequirement

Relative Humidity

Temperature Range

Air Quality

Environment

Dimensions

Voltage

Weight

FCC Number

Ringer Equivalence Number (REN)

TDD Compatibility

Maximum Number of Ports

8-85%

Recommended: 60°F–80°F (16°C–27°C)

Maximum: 40°F–104°F (4°C–40°C) Dust-free area (preferably in an office environment)

No exposure to any liquids (avoid areas near drinking fountains, coffee makers, and so on)

Adequate clearance around vents to allow for air flow

Cabinet: 12” high x 14.5” wide x 5-5/8” deep

Bracket: 10-7/8” high x 17-1/4” wide 115 or 230 VAC

~26 lb.

EAG USA-21253-VM-E 0.7B

None 6

The system unit should be wall-mounted adjacent to the communications system control unit on the same wood mounting surface, if possible.

Installation 2-3