AT&T MERLIN LEGEND Release 2.0 Pocket Reference Manual page 38

Specifications
Capacity: 12 T/R stations on 2-way voice transmission path with support
for telephones with message-waiting LEDs; 2 Tl17s
Power: 21 -VDC, 600-ohm battery source
Ringing current: 105-Vrms, 30-Hz sinusoidal ringing superimposed on
48 VDC; a ring generator must be installed in the power supply module
of each carrier that has an 012 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
Capacity: 24 trunks for voice and analog data or 23 trunks for voice and
data with 1 channel used for signaling
Mode: Multiplexes 24 or 23 trunks into 1 facility and demultiplexes
1 facility into 23 or 24 trunks
Speed: Up to 64 kbps
Signaling: DSI over 4-wire; T1 uses robbed-bit or common-channel, PRl
uses 23 B + D
Capacity: 4 trunks, 4 TTRs, 1 PFT telephone
Signaling: Loop-start
Capacity: 4 tie lines
M e t h o d o f c o m p l e t i o n : A u t o m a t i c
delay-dial-start
Signaling: Loop-start or ground-start, optioned per port
Capacity: 4 trunks, 4 TTRs, 1 PFT telephone
Signaling: Loop-start or ground-start, optioned per port
Capacity: 4 trunks, 8 stations, 1 PFT telephone
Station signaling: Analog multiline telephone (40 kbps)
Trunk signaling: Loop-start trunk, analog voice
Loop range: 1000 feet (305 m), in-building or in-range out-of-building
(with analog IROB protectors) only
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