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LEGEND SYSTEM CONTROL UNIT MODULES
MODULE
008
008 MLX
LINE/TRUNK
TYPE
n/a
n/a
008 OPT n/a
STATION TYPE
Analog multiline
telephone; Call
Management System;
analog data with
a general purpose
adapter
MLX telephone; digital
data service (the
ISDN 7500B Data
Module)
on-premises or off-
premises single-line
telephone
SPECIFICATIONS
Capacity: 8 analog stations
Signaling: analog multiline
telephone protocol (40 kbps)
Loop range: 1000 ft in-building
or in-range out-of-building
with analog IROB protectors)
service only
Capacity: 8 digital stations,
each with 1 or 2 endpoints.
including the following station
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
Capacity 8 T/R stations on
2-way voice transmission path
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