Power-Pac Power Supplies

Power Supply With Built-in Battery Back-up

Designed for critical base stations and repeater sites that must remain “on-line”, even in the event of AC power failure or brown-out which would disable conventional power supplies. The Power-Pac offers peace of mind for the system designer or base station operator This unique power supply assures that a base station can remain up and running to power communications when it is often needed most - during a power outage.

The Power-Pac’s highly regulated, low ripple 10 amp output powers radios and other sensitive communications equipment without causing RF or audio interference. At the same time it float charges one or two (depending on model) built in 7 amp/hour back-up batteries. These are kept at peak charge during the normal functioning of the unit when AC is being supplied. In the event of a loss of AC power, the internal batteries automatically take over to power communication equipment, providing a true uninterruptible DC source.

Data Sheet / Instruction Manuals

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Model	Battery Capacity	Weight
Model	Battery Capacity	lbs.	kg.
Power-Pac 7A/H	7 amp/hour	18	8.2
Power-Pac 14A/H	14 amp/hour	24	10.9

Operating On Battery Back Up

With 7 amp/hour battery installed, unit provides approximately the following power.*7 amps for 40 min.
10 amps for 20 min.
15 amps for 10 min.
20 amps for 4 min.

With 14 amp/hour battery installed, unit provides approximately the following power.
7 amps for 100 min.
10 amps for 60 min.
15 amps for 30 min.
20 amps for 15 min
* Assuming battery at full charge when a.c. power failed.

The Power-Pac 7 A/H (single battery model) can power a 25 watt transceiver for up to 3 hours, based on a 20% transmit/receive duty cycle. Power-Pac 14 A/H can provide the same service for up to 6 hours. Provision is made for expanding back-up power up to twelve hours (in this example - longer under lesser loads), with the installation of additional externally wired batteries (total 28 amp/hours max.). Batteries are automatically recharged when AC is restored

The operator is kept informed of all important functions such as AC input, DC output and battery status with front panel indicator lights and a low battery warning buzzer.

Models

Power-Pac 7 A/H (with 7 amp/hour battery)
Power-Pac 14 A/H (with 14 amp/hour battery)

Features

Highly regulated, low ripple, noise-free 12 volt output
Built-in, “on-line” stand-by battery provides immediate back-up power in case of AC power loss
Internal mounting space and terminals for conversion of 7 A/H model into 14 A/H model
Output “Normal” indicator L.E.D.
“Back-up power only” warning light
Audible and visual low battery (10.7 VDC) voltage indicators
Low battery warning buzzer mute switch
Automatic low battery (10.3 VDC) voltage disconnect
Low voltage disconnect override button
Over-voltage protection
Current limit protection
Input/output fused
Separate output terminals provided for charging external batteries
115/230 50-60 Hz input, selected by slide switch on rear panel

General Specifications

Input: 115/230 VAC, 50-60 Hz.
Output: 13.6 VDC @ 5A cont., 10A Int.
Regulation: 1% line and load
Ripple: 1% P-P

Operating Temp: 0-40° C

Protection

AC Input fuse
Internal & External Battery fuses
Over Voltage
Current Limit
Automatic Thermal Shutdown
Low Battery Disconnect

For Power Supplies with larger back-up battery requirements, 24 or 48 volt output and higher continuous ratings, see our IPS Integrated Power System

Mechanical Details

Vinyl Laminated aluminum case
6’ standard AC power cord
Ac input selector switch

Case Size

Inches			Centimeters
H	W	D	H	W	D
5.3	9.0	10.5	13.3	22.9	26.7

Weight

Model	Lbs.	Kg.
7AH	18	8.2
14 AH	24	10.9

Battery Details

Sealed Lead Acid, Deep-cycle.
Certified by DOT and IATA for shipment by Air
Weight per 7 AH Battery; 6 lbs.
Size: 6” x 3.75” x 2.5”

Options

Form C AC Failure Contacts (Contact factory for details)
Extra batteries, sold separately 7 A/H increments; each Power Pac will accommodate 28 A/H max. (14 internal, 14 external)