MERLIN LEGEND Communications System Release 6.1
Pocket Reference
555-661-116
Issue 1
August 1998
Page 79
Control Unit Modules
Specifications
Capacity: 4 trunks, 8 extensions, 1 PFT telephone
Extension 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
Capacity: 4 trunks, 8 extensions, 1 PFT telephone
Extension 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 extensions, 1 PFT telephone, 1 CTI link
Extension 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: 3000 feet (914 m), in-building or in-range out-of-building
(with MLX IROB protectors) only
Capacity: 8 trunks, 2 PFT telephones
Signaling: Loop-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 battery; wink-start or immediate-start; accepts
touch-tone dialing
Capacity: 8 trunks, 2 PFT telephones
Signaling: Loop-start or ground-start
Capacity: 8 lines/trunks, 2 PFT telephones, 2 TTRs
Signaling: Loop-start or ground-start
Protocol: Requires calling number identification service from central office