Hardware Description and Reference for Avaya ... - Avaya Support

Circuit packs, channel service units, and power supplies
TN791 analog guest line (16 ports)
Note:
Note: This circuit pack is not used in a G650 Media Gateway.
The TN791 is a 16-port analog guest line circuit pack. The TN791 is used for international offers
and for offer category B in the US and Canada. Each of the 16 ports support one telephone,
such as 500 (rotary dial) and 2500 terminals (DTMF dial). LED and neon message waiting
indicators are supported. A separate power supply is required for neon message indicators.
The TN791 circuit pack supports on-premises wiring with either touchtone or rotary dialing, and
with or without the LED and neon message waiting indicators.
The TN791 circuit pack supports three ringer loads. Only one telephone can have an LED or
neon message waiting indicator. The TN791 supports up to eight ports simultaneously-ringing.
To achieve this maximum, the system uses four ports from the set of ports numbered one
through eight and four ports from the set of ports numbered 9 through 16.
The TN791 circuit pack supports A- and µ-law companding and administrable timers.
Secondary lightning protection is provided.
The following table lists the TN791-supported telephones and shows each of their wiring sizes
and ranges.
Telephone Wire size (AWG) Maximum range
(feet)
2500 type 24 (0.2 mm 2 /0.5 mm) 20,000 (6,096 m)
6200 type 24 (0.2 mm 2 /0.5 mm) 12,000 (3,657 m)
7100 series 24 (0.2 mm 2 /0.5 mm) 20,000 (6,096 m)
7101A 24 (0.2 mm 2 /0.5 mm) 15,200 (4,633 m)
7103A 24 (0.2 mm 2 /0.5 mm) 15,200 (4,633 m)
8100 series 24 (0.2 mm 2 /0.5 mm) 12,000 (3,657 m)
9100 series 24 (0.2 mm 2 /0.5 mm) 12,000 (3,657 m)
240 Hardware Description and Reference for Avaya Communication Manager