AT&T MERLIN LEGEND Release 2.0 Pocket Reference Manual page 40

Specifications
Capacity: 4 trunks, 8 stations, 1 PFT telephone
Station signaling: Analog multiline telephone (40 kbps)
Trunk signaling: Loop-start or ground-start trunk (optional per port);
voice
Loop range: 1000 feet (305 m), in-building or in-range out-of-building
(with analog IROB protectors) only
Capacity: 4 trunks, 8 digital stations, 1 PFT telephone
Station signaling: BRI S/T protocol (two 64-kbps B channels, one
16-kbps D channel) on a passive bus
Trunk signaling: Loop-start or ground-start trunk (optional per port),
analog voice
Loop range: 1000 feet (305 m), in-building or in-range out-of-building
(with MLX IROB protectors) only
Capacity: 8 trunks, 2 PFT telephones
Signaling: Loop-start or ground-start
Capacity: 8 trunks, 2 TTRs
Transmission: Incoming calls only; 2-way (1-pair) fixed impedance to
DID trunks; no outgoing calls
Signaling: Loop-reverse
touch-tone dialing
Capacity: 8 trunks, 2 PFT telephones
Signaling: Loop-start or ground-start
battery; wink-start or immediate start; accepts
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