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AUDIOCOM
"
INTERCOM SYSTEMS
MODEL
PS-1
FLUSH-MOUNT
POWER SUPPLY
INSTALLATION AND OPERATION INSTRUCTIONS
GENERAL DESCRIPTION
WARNING
The Telex AudiocomT" Model PS-1 F Power Supply
THE PS-IF REQUIRES CONNECTION OF LINE
mounts in a standard two-gang electrical outlet box. VOLTAGE AND LOW VOLTAGE WIRING IN THE
It may be used to power a single intercom channel SAME OUTLET BOX. ANY INSTALLATION OF
containing up to 25 belt-pack headset stations. It
THIS UNIT MUST MEET ALL RELEVANT
may also be used as a local power source for NATIONAL AND LOCAL ELECTRICAL CODES.
speaker stations such as the Telex Model ICQSF.
INSTALLATION
1. Ac power should be supplied from a circuit
SPECIFICATIONS
Power Requirements: 105-1 25 Vac, 50-60 Hz,
30 watts
protected 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
Output Voltage: 24 Vdc regulated (less than
intercom channel to the CHANNEL terminals,
50 millivolts ripple)
and connect intercom dc return to the SHLD
terminal.
Output Current:
-
500 milliamps maximum continuous
-
700 milliamps maximum intermittent
-
240 milliamps short circuit current limiting
Channel Terminating Impedance (provided
by
PS-1
F):
300 ohms t15O/0
To locally power a speaker station: Connect the
speaker station positive terminal to either one of
the PS-1 F CHANNEL terminals, and connect
speaker station ground to the PS-1
F
SHLD
terminal. The remaining CHANNEL terminal on
the PS-IF is not used. On the speaker station,
be sure to remove the jumper installed between
-.
Connectors:
the +24 and PH terminals. (This jumper is used
only when the speaker station is phantom
-
Intercom Channel: Three screw terminals with
powered from the intercom channel.)
wire clamps for No. 14-22 AWG stranded or solid
wire
3.
Mount the PS-IF in an electrical box using the
-
Power: Three wire pigtails
screws provided with the unit.
1
J
I
Model
PS-IF
Dimensional Drawing
TELEX.
TELEX
COMMUNICATIONS, INC. 9600 Aldrich Ave. So., Minneapolis, MN
55420
U.S.A.