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2 947260
Dimensions/Weight
• 9.25" H x 7.5" W x 5.25" D
(23.5cm H x 19.05cm W x 13.3cm D)
• 19 lbs (8.6 kg)
Specifications
• Output 24 Vdc and 12 Vdc fused at 3 amps each
• Current limited, constant voltage charger
• Gel Cell no maintenance type batteries
• Typical battery life is 3-5 years
Power Requirements
• Input 105-120 Vac, 60 Hz
Environment
• Temperature 0 to 50 Degrees C
• Humidity 0 to 85% non-precipitating
DESIGN
The VPB-260 is a fully filtered battery back-up
power supply. The input and both outputs are fuse
protected. The charger circuit output is floating with
respect to ground. The charging circuit provides a
constant voltage and is current limited to 1.5 amps to
the two Gel Cells. There is a "power on" LED that is
illuminated when the supply is connected to the AC
power source. There is also a test button for testing
the batteries. When pressing this button, the LED
will illuminate if the batteries are fully charged.
Figure 1: Low Voltage Plug Outputs
24VDC
12VDC
INSTALLATION
Mounting
Using the appropriate hardware, mount the VPB-260
within 6 feet of an AC receptacle.
Connections
Unplug the KSU power cord. Consult the installation
manual of the key system for the location of the input
socket for the battery backup supply. Plug the low
voltage power cord of the auxiliary power system into
the socket.
NOTE: The plug is polarized and will only fit one
way. After making sure that the plug is seated in the
socket, plug in the AC power cords. Both the AC
power cord for the VPB-260 and the power cord for
the KSU should use the same AC outlet. Figure 1
shows low voltage plug outputs.
NOTE: Time to reach a full charge after initial
installation or after a deep discharge is
approximately 9 hours.
MAINTENANCE
In order to insure proper operation of the battery
supply, the following operation should be performed
once a month.
Unplug the key system from the AC power receptacle
to allow operation from the batteries for 15 minutes.
Plug key system power cord into AC outlet.
TECHNICAL ASSISTANCE
When trouble is reported, verify that AC power is
being supplied to the unit and there are no blown
fuses. To test the batteries for full charge, unplug the
VPB-260 and press the button marked test on the side
of the unit. The LED lights when batteries are okay.
Assistance in troubleshooting is available from the
factory. When calling, you should have a VOM and a
test set available and be calling from the job site.
Call (703) 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