INSTRUCTIONS
PTT MICROPHONE ADAPTER
CT-23
Thank you for purchasing the
CT-23
ptt
microphone
adapter
.
The CT-23 enables you to connect an Icom
microphone to a Remote Communicator
(PC) in your IDAS system.
Please read these instructions thoroughly
before using the CT-23.
PRECAUTIONS
R
WARNING! NEVER
connect an AC adapter
to the CT-23 other than the specified one. This
may cause a fire or damage the CT-23.
CAUTION: NEVER
connect a microphone to
the CT-23 other than the specified one. Other
microphones may have different pin assign-
ments, and could damage the CT-23 or the
microphone.
CAUTION: NEVER
expose the CT-23 to rain,
snow or any liquids. This may damage the CT-23.
CAUTION: NEVER
let metal, wire, etc. touch
any connector part of the CT-23.
DO NOT
use or place the CT-23 in areas with
temperatures below 0°C (+32°F)
or above
+40°C (+104°F).
DO NOT
use harsh solvents such as benzine
or alcohol to clean the CT-23, because they can
damage it’s surfaces.
☞
Information
Output audio from the CT-23 includes high pitch
tones that humans can hardly hear. However,
when you playback any recorded audio while
using the CT-23, it might be better to not
turn
the volume too high.
FCC INFORMATION
For CLASS B UNINTENTIONAL RADIATORS
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is con-
nected.
• Consult the dealer or an experienced radio/TV technician for help.
FEATURES
m
Make Land Mobile microphones usable
for IDAS system
When the SM-25
stand
microphone
or the
HM-152
hand
microphone
is connected to a
Remote Communicator (PC) through the CT-23,
you can make full use of the microphone for
your IDAS system.
m
POWER/TRANSMIT indicator
The CT-23 has a POWER/TRANSMIT indicator
on the top panel, which enables you to see the
operating status at a glance.
m
External switch is connectable
When an external switch is connected, you can
use it as a substitute of the microphone’s [PTT]
and [MONITOR] switches.
m
Easy connections
The CT-23 has 4 different types of connectors
for safe, easy connection.
SUPPLIED ITEMS
Item
Qty.
q
CT-23 .................................................... 1
w
Self tapping screws .............................. 2
e
Audio cable .......................................... 1
w
e
q
