Telex audiocom PS-1F INSTALLATION

Model PS-1F Power Supply

Installation Instructions

General Description

The Telex Audiocom™ Model PS-1F Power Supply
mounts in a standard two-gang electrical outlet box. It
may be used to power a single intercom channel
containing up to 5 belt-pack headset stations. It may
also be used as a local power source for speaker
stations such as the Telex Model IC-2SF.

Specifications

Power Requirements: 105-130VAC, 60Hz, 35

Watts

Output Voltage: 24VDC regulated (less than

50 milli-volts ripple).

Output Current: - 500 milliamps maximum

continuous.

- 700 milliamps maximum
continuous

- 240 milliamps short
circuit current limiting.

WARNING!

THE PS-1F REQUIRES CONNECTION OF LINE
VOL TAGE AND LOW VOL TAGE WIRING IN THE
SAME OUTLET BOX. ANY INSTALLATION OF
THIS UNIT MUST MEET ALL RELEVANT
NATIONAL AND LOCAL ELECTRICAL NEEDS.

Installation

1. AC power should be supplied from a circuit pro-

tected by a service fuse or circuit breaker with a
maximum rating of 15 amps. Connect AC power to
the black and white leadwires; connect ground to
the green wire.

2. To power an intercom channel: Connect the

intercom channel to the CHANNEL terminals, and
connect intercom DC return to the SHLD terminal.

To locally power a speaker statino: Connect the
speaker station’s positive terminal to either one of
the PS-1F CHANNEL terminals, and connect
speaker station ground to the PS-1F SHLD
terminal. The remaining CHANNEL terminal on
the PS-1F is not used. On the speaker station, be
sure to remove the jumper installed between the
+24 and PH terminals. (This jumper is used only
when the speaker station is phantom powered from
the intercom channel.)

3. Mount the PS-1F in an electrical box using the

screws provided with the unit.

Channel Terminating
Impedance provided by
PS-1F): 300 Ohm ±15%

Intercom Channel:Three screw terminals with

wire clamps for No. 14-22
AWG stranded or solid
wire.

Power: Three wire pigtails

38109-313 Rev C 11/2006

4.6 IN.

4.6 IN.

(117 MM)

(117 MM)

2.3 IN.

(58 MM)

2.3 IN.

(58 MM)

4.5 IN.

(114 MM)

3.281 IN

(495.3 MM)

1.812 IN.

(46.024 MM)

Model PS-1F Dimensional Drawing

38109-313 Rev C 11/2006