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Voice Modules (VCMs & DPVs)
DPV Application Notes
DPV FXS Connection
For signaling, the DPV sources the negative battery voltage on R (Ring) with respect to T (Tip)
which is near ground potential. The voice frequency (VF) audio sounds are I-directional on Tip and
Ring, superimposed over the signaling voltages and currents.
DPV FXO Connections
For signaling, the DPV sinks current provided by the connecting equipment battery, which may be
applied to either Tip or Ring (i.e., the DPV FXO will work with Tip/Ring reversed). The voice
frequency (VF) audio signals are I-directional on Tip/Ring superimposed over the signaling
voltages and currents.
PBX
O
P
X
OR
Channel Bank
PBX
F
X
S
036R340-000
Issue 16
8-position
modular jack
T (Tip)
OCM DPV
5
R (Ring)
FXS
4
8-position
modular jack
T (Tip)
OCM DPV
5
R (Ring)
FXS
4
8-position
modular jack
T (Tip)
5
R (Ring)
FXO
4
Office Connunications Manager OCM-1000/OCM-2000
Installation & Operation
OCM DPV
DPV Overview
6-23
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