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LEGEND SYSTEM CONTROL UNIT MODULES

 

MODULE

LINE/TRUNK

STATION TYPE

SPECIFICATIONS

 

 

 

TYPE

 

 

 

 

 

 

 

 

 

 

008

n/a

Analog multiline

Capacity: 8 analog stations

 

 

 

 

telephone; Call

Signaling: analog multiline

 

 

 

 

Management System;

telephone protocol (40 kbps)

 

 

 

 

analog data with

Loop range: 1000 ft in-building

 

 

 

 

a general purpose

or in-range out-of-building

 

 

 

 

adapter

with analog IROB protectors)

 

 

 

 

 

service only

 

 

008 MLX

n/a

MLX telephone; digital

Capacity: 8 digital stations,

 

 

 

 

data service (the

each with 1 or 2 endpoints.

 

 

 

 

ISDN 7500B Data

including the following station

 

 

 

 

Module)

types:

 

 

 

 

 

*digital voice only

 

 

 

 

 

*digital voice with Voice

 

 

 

 

 

Announce to Busy

 

 

 

 

 

*digital voice and digital data

 

 

 

 

 

(via ISDN 7500B Data Module)

 

 

 

 

 

*digital voice and MFM

 

 

 

 

 

*digital data only (ISDN 7500B

 

 

 

 

 

Data Module)

 

 

 

 

 

Signaling: ISDN-BRI S/T

 

 

 

 

 

protocol (2 64-kbps B channels,

 

 

 

 

 

one 16-kbps D channel), on a

 

 

 

 

 

passable bus.

 

 

 

 

 

Power: 48-VDC phantom power to

 

 

 

 

 

telephone: 48 VDC over a separate

 

 

 

 

 

pair (7-8) to an operator DSS console

 

 

 

 

 

Loop range: 1000 ft. in-building

 

 

 

 

 

and in-range out-of-building (with

 

 

 

 

 

MLX IROB protectors) service only

 

 

 

 

 

 

 

 

008 OPT

n/a

on-premises or off-

Capacity 8 T/R stations on

 

 

 

 

premises single-line

2-way voice transmission path

 

 

 

 

telephone

with support for telephones with

 

 

 

 

 

message-waiting LEDs: 2 TTRs

 

 

 

 

 

Ringing current: 105-Vrms.

 

 

 

 

 

30-HZ sinusoidal ringing super-

 

 

 

 

 

imposed cm -48 VDC; a ring

 

 

 

 

 

generator must be installed in

 

 

 

 

 

the power supply module of each

 

 

 

 

 

carrier that has a 008 OPT module.

 

 

 

 

 

REN: <1.0 per port

 

 

 

 

 

.

 

 

 

 

 

Disconnect signal: 900 ms

 

 

 

 

 

(T/R short for answering machines,

 

 

 

 

 

G3 Fax, etc.)

 

 

 

 

 

Switchhook flash detection

 

 

 

 

 

300-1200 ms

 

 

 

 

 

Loop Resistance: Serves 2-wire

 

 

 

 

 

loops to 1300 ohms, including

 

 

 

 

 

stations

 

 

 

 

 

Notice to Telco: Meets FCC

 

 

 

 

 

Class c

 

 

 

 

 

 

 

Page 33
Image 33
AT&T 555-600-736 manual Module LINE/TRUNK Station Type Specifications