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

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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

2

947260