American Fibertek PSR-2 - Manual (Page 3)

3
INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
The PSR-2 is plug-in power supply unit for the SR-20 sub-rack frame. Utilizing state of the art,
low noise, switching power supply technology, it allows up to 100 Watts of output power to be
provided to the application cards. Over voltage and thermal protection are included in the unit.
There are no user serviceable parts inside. Up to fourteen single or seven dual position plug in
cards can be powered by the PSR-2
LINE VOLTAGE
For proper operation, the input line voltage should be in the range of 100 to 240 VAC, 50 - 60
Hz, properly grounded and conforming to all local codes. A universal power connector is
provided on the rear of the unit to facilitate connection to the power mains.
INSTALLATION
This installation should be made by a qualified service person and should conform to all local
codes . All wiring methods should be in accordance with the National Electric Code, ANSI/NFPA
70. The unit slides in and is locked into place by four ¼ turn fasteners. The line cord is then
plugged in from the rear. Be sure that the power switch is in the off (O) position before
connecting the power source.
The rear of the unit includes an exhaust fan. In order to insure long life and reliable operation,
air-flow from the fan port should not be obstructed.