VSP-VP-2048B
Issue 6
1
947748
VP-2048B
48 VOLT DC POWER SUPPLY
IDENTIFICATION
The VP-2048B is a fully regulated 48 Vdc 2 amp
power supply ("A" Battery). The input and output are
fuse protected and the output is floating with respect
to ground. The regulator will maintain 48 + 3 volts
over the entire input voltage range. Upon power up, a
load greater than 2 amps will shut the power supply
off and cause the overload LED to illuminate. Short
circuit protection is also provided. The VP-2048B
can be used with Valcom V-1038 paging horns or any
application where 48 Vdc filtered ("A") battery is
required. The VP-2048B is CSA Approved.
NOMINAL SPECIFICATIONS
Input:
105-120 Vac, 60 Hz, 150 watts
Output:
48 Vac +3V "A" Battery
(ripple 10mV max.) 2 amps @ 25 degrees C
Environment:
Temperature 0 to 50 degrees
Humidity 0 to 85% non-precipitating
Dimensions:
7.0"H x 9.5"W x 5.5"D
17.78cm H x 24.13cm W x 13.97cm D
Weight:
12 lbs. (5.45 Kg)
INSTALLATION
The VP-2048B is designed to be wall-mounted within
4.5 feet of an AC receptacle.
___ 1. Using 12 AWG or larger ground wire,
connect the local ground screw terminal to a
cold water pipe or earth ground.
___ 2. Connect device requiring power to screw
terminal labeled -48V, 2A and to the screw
terminal labeled GND.
___ 3. Connect a strap between the local ground
and ground output terminals when using the
VP-2048B with Valcom equipment.
TECHNICAL ASSISTANCE
When trouble is reported, verify there are no broken
connections. Troubleshooting assistance is available
from the factory. Call (540) 427-3900 and ask for
Technical Support or (540) 427-6000 for Valcom
24-hour Automated Support or visit our website at
http://www.valcom.com.
Valcom equipment is not field repairable. Valcom,
Inc. maintains service facilities in Roanoke, VA.
Should repairs be necessary, attach a tag to the unit
clearly stating company name, address, phone
number, contact person, and the nature of the
problem. Send the unit to:
Valcom, Inc.
Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
