Specifications

December 2008 Page 20–9
Chapter 20. Addressable Two-Wire Voice (PBW/PBT) Module
20
Table 20–2. PBW/PBT Module Specifications.
Indicators Status LED
Break-in
Channel busy
Line out
Line in
Modes PBX extension (PBT–PBW)
Interstation orderwire (PBW–PBW)
Two-wire modem (PBT/W–PBW)
VF Insertion 2dB nominal
Loss
Impedance 600Ω
Catalog ID PBT – Terminating
PBW – Originating
Interface RJ-9 jack
Compression type terminal block
Signaling Loop-start
Functions Ring generation
DTMF dialing
All-ring
Break-in
Local ring-back tone
Busy tone
Dial tone