Issue 3
1 947972
V-DCPI
Digital Protocol Interface
GENERAL
The Valcom Digital Protocol Interface conditions the
24-hour enhanced digital output from the Valcom
V-SER or V-2927 clock cards to allow the Valcom
communications systems using these cards to
provide clock correction data to a V-WMCA
Wireless Master Clock Transceiver, a V-WMCRA
Wireless Master Clock Repeater, or a V-CCU
2-Wire Clock Controller. The V-CCU is part of the
V-VCU package, which includes the V-CCU and a
power supply.
PACKAGE INCLUDES
1 Valcom V-DCPI Digital Protocol Interface
1 6-Pin Silver-Satin Cord
1 6-Pin RJ-11 Wiring Block
1 DB15 to RJ-45 Gender Changer
1 Ethernet Cable
SPECIFICATIONS
Output
Two individual RJ-11 data outputs
Inputs
RJ-45 for 24-hour enhanced digital from the
Valcom V-SER or V-2927 clock cards
-24VDC input power (for use when providing
data to V-WMCA or V-WMCRA only)
Dry contact closure input to display “Fire” or
“Bell” on wired digital display clocks that are
receiving data once a second.
Features
Data output LED indicator
Easy Connectivity
Dimensions/Weight
2.75”H x 7.70”W x 1.55”D
(6.98cm H x 19.55cm W x 3.94cm D)
1.5 lb. (0.68 kg)
Power Requirements
The V-DCPI requires -24VDC 50mA (1 VPU). The
unit may be powered by a V-CCU connection to the
V-CCU #1 RJ-11 or by connecting a suitable power
supply to the -24VDC input.
Environmental
Operating Temperature: -0 to +40° C
Humidity: 0-95% non-precipitating
Wiring Requirements
24AWG UTP, CAT 3/5/5E/6
Ethernet Cable
6-Pin Silver Satin Cord
6-Pin RJ-11 Wiring Block (for V-WMCA or
V-WMCRA connectivity). When used with a
V-WMCRA, the Wireless Master Clock
Repeater must be set to transmit mode.
INSTALLATION
Precautions
Failure to observe the following precautions could
result in damage to the V-DCPI:
Make all connections to the V-DCPI and
associated equipment with the input power
removed. Check and verify all connections
before applying power.
FIGURE 1: V-CCU RJ-11 DETAIL
Data is connected to the V-CCU, V-WMCA or
V-WMCRA via the two center pins of the “DATA
OUT” RJ-11 connector. Electrical shorting of any
RJ-11 pins or terminations may result in unit failure.
The 24V and GND connections are provided as a
power source for the V-DCPI Digital Protocol
Interface when used with a V-CCU 2-Wire Clock
Controller.
OPERATION
The green data output indicator will flicker when
correction data is supplied to the V-CCU outputs.
Pin 1 24V in from V-CCU
Pin 2 GND in from V-CCU
Pin 3 Data
Pin 4 Data
Pin 5 GND in from V-CCU
Pin 6 24V in from V-CCU
