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Specifications subject to change without notice
© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL8-1434
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
Specifications subject to change without notice
INPUT IMP. OUTPUT IMP. FREQUENCY RESP. DIMENSIONS WEIGHT
600 Ohms 600, 10K, 60Hz-12KHz 4
7
⁄
8" W x 3
1
⁄
8" H x 1
3
⁄
4" D 2.5 Lbs.
25K Ohms (124 x 80 x 44mm) (1.1 kg)
MODEL DESCRIPTION COLOR WEIGHT
RU-1 Receiver - .5Lb. (.2 kg.)
TU-1 Transmitter - 1.5 Lbs. (.7 kg.)
DY-1 Dynamic Transmitter - 1 Lb. (.4 kg.)
CEK-1A Cord Neutral .5Lbs. (.2 kg.)
PT Option
Wiring
Diagram with
Push-to-Talk
Switch
ACCESSORIES & REPLACEMENT PARTS FOR CE SERIES AND MODEL DP-1A
PT OPTION: PUSH-TO-TALK BUTTON SWITCH
This factory-installed option consists of a standard “500” style handset with the addition of a
pushbutton switch located conveniently on the handset. The switch-contact arrangement is form
“C” (SPDT) and is wired as form“A” (SPST). Configuration is ideal for use in relay-control, push-
to-call, and a variety of other switch, communication, and signaling applications. It is available
on CE-2A and DP-1A by adding a (-PT) suffix.
DY-1 DYNAMIC TRANSMITTER
This accessory is designed for installations in which the telephone handset would be used as a
paging microphone. The dynamic transmitter is the low-impedance type suitable for input to the
Lo-Z microphone input of the amplifier. Assembly replaces the carbon transmitter with a moving
coil (dynamic, 500 ohms @ 1KHz with a response of 250-5000Hz) transmitter that has an
impedance of 500 ohms @ 1 kHz.
TELEPHONE POWER SUPPLY FOR COMMON-TALK SYSTEMS
TPS24-05 The TPS24-05 is a combination 24 VDC / TALK voltage power supply, engineered to
power most common-talk telephone intercom systems. (See SL5-1425 on DC power supplies
and SL8-1433 for common-talk telephone intercom applications.) Black epoxy finish with a 6’
power cord.
600-OHM IMPEDANCE MATCHING TRANSFORMER
LT600-VC Versatile unit matches line level, 600-ohm line circuits with HI-Z circuits. It can also
be used as a 600-ohm to 600-ohm isolation transformer. Recommended for coupling of line
level audio or common-talk phones into amplified sound systems, background music and paging
systems, recording equipment, or studio electronics. Built-in potentiometer provides optional
adjustability for the 25K output level. The 600-ohm input may be matched to 600, 10K, and 25K-
ohm circuits. All components are mounted on a printed circuit board. Steel chassis includes
mounting ears and “insta-mount” tape. Transformer is shielded to minimize induced hum. Unit
includes a phono jack on the output side for convenient connection to amplifier or other equip-
ment circuitry. Jack can be connected to various transformer taps via barrier strip jumper.
(Factory-installed jumper connects jack to potentiometer output.)
INPUT OUTPUT RIPPLE REGULATION DIMENSIONS WEIGHT
(Nominal) (Talk Voltage)
(0-Full Load) L x H x D
117 VAC, 24 VDC @ .5 mV & TALK
500 mV
6
3
⁄4" x 3
5
⁄8" x 2" 3.0 Lbs.
@ 60 Hz, 26 Watts 1/2 amp voltage output (171 x 92 x 51 mm) (1.4 kg)
TPS24-05
LT600-VC
SCHEMATIC CIRCUIT BOARD