Pt option: push-to-talk button switch, Dy-1 dynamic transmitter, Telephone power supply for common-talk systems – Atlas Sound DY User Manual
Page 2: Ohm impedance matching transformer

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