Lucent Technologies 555-670-116 manual MERLIN LEGEND Communications System Release, Issue, April

MERLIN LEGEND Communications System Release 7.0	Issue 1
Pocket Reference 555-670-116	April 1999
Ordering Codes	73

Specifications

Capacity: 12 T/R extensions on 2-way voice transmission path with support for telephones with message-waiting lights, 2 TTRs

Ringing current: 105-Vrms, 30-Hz sinusoidal ringing superimposed on -48 VDC

REN: ≤ 4.0 per port

Disconnect signal: 900 ms (T/R short for analog modems, G3 fax, etc.)

Switchhook flash detection: 300–1200 ms

Capacity: 16 T/R extensions on 2-way voice transmission path with support for telephones with message waiting lights, 4 TTRs

Power: 40-VDC, 600-ohm battery source

Ringing current: 105-Vrms, 30-Hz sinusoidal ringing superimposed on -48 VDC

REN: ≥ 4.0 per port

Disconnect signal: 900 ms (T/R short for analog modems, G3 fax, etc.)

Switchhook flash detection: 300–1200 ms

Capacity: 16 ETR station ports including 6 with T/R functionality and 4 TTRs. First 10 ports are ETR ports only; remaining 6 ports can support either T/R or ETR, but not both simultaneously

Power: -48V for ETR and -49V normal for T/R

Ringing current: 20/25 Hz balanced trapezoidal ring signal

REN: 2 per port

Off-hook detection: ≥18mA, ≤30ma, ≥20 msec for T/R; massage control for

ETR

On-hook detection: ≤14mA for T/R; massage control for ETR

T/R switchhook flash detection: 300-1200 ms

Capacity: 16 digital station ports

Signaling: BRI S/T protocol (two 64-kbps B channels, one 16-kbps D channel) on a passive bus

Power: 48 VDC phantom power to telephone, 48 VDC over a separate pair (7–8) to an operator console with a DSS

Loop range: 3000 feet (914 m), in-building or in-range out-of-building (with MLX IROB protectors) service only