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Port Specifications (Contd)
VOICE TERMINAL PORTS (Contd)
STATION TYPE
CIRCUIT PACK
SPECIFICATIONS
MET Sets
MET Line
(Hybrid)
(TN735)
● 3-Pair Interface
l-Voice pair
2-Control pairs
● Analog Voice, Digital
Control/Signaling
● Power: Phantom Power Over Data
Pairs
● Bipolar Signaling With O V de Offset
● 1 MHz Nominal Signaling Rate
● Loop Range: 1000 feet
(In-Building service only)
MERLIN® Sets
ATL Line
(7300H Series)
(ZTN79)
● 3-Pair Interface
(Hybrid)
l-Voice pair
l-Control pair
l-Power pair
● Analog Voice, Digital
Control/Signaling
● Bipolar non-return to zero line-coding
● 40 kHz Nominal signaling rate
● Loop Range: 1000 feet
● In-Building and In-Range Out-of-
Building (IROB) services only
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