ICOM CT-M500 INSTRUCTION MANUAL

■ Installing

■ Specications and options

You can mount the device on a dashboard using the
universal mounting bracket supplied with your device.

CAUTION:

• KEEP the device at least 1 meter (3.3 ft) away from the

vessel’s magnetic navigation compass.

• INSTALL the device within approximately 15 meters

from the transceiver, and in a place where there are no
obstacles between the device and the transceiver.

1. Mount the bracket securely to a surface which is more
than 10 mm thick and can support more than 5 kg using
the 4 supplied screws (5 × 20 mm).

2. Attach the device to the bracket.

Mounting Example

Spring washer
Flat washer

Fuse replacement

■

One fuse is installed in the supplied DC power cable. If the
fuse blows or the device stops functioning, track down the
source of the problem, repair it, and replace the damaged
fuse with a new one of the proper rating.
Fuse rating: 250 V 5 A

Fuse Coding explanation

Fuse Coding: F 250 V 5 A
Fuse Voltage Rating: 250 Volts
Fuse Current Rating: 5 Amperes

Below statement is for UKCA purpose only

United Kingdom Authorised Importer: Icom (UK) Ltd.
Address: Blacksole House, Altira Park, Herne Bay, Kent, CT6

6GZ, U.K.

To obtain the UKCA Declaration of Conformity, please contact
Icom UK Limited by email at [e-mail] or alternatively
call + 44(0) 1227 741741.

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan

May 2023

D Specications

General

Operating
temperature range
Power supply
requirement
Current drain
(at 13.8 V)
Dimensions
(approximate)
( projections not

included)
Weight
(approximate)

Wireless LAN

Wireless LAN standard

Authentication and
Encryption

Channels

Output power Less than 10 mW/MHz

Hailer

Audio output power More than 25 W into a 4 Ω load

RX Hailer

Audio output power More than 20 W into a 4 Ω load

–20°C ~ +60°C, –4ºF ~ +140ºF

Negative ground:

13.8 V DC nominal (10.8 ~ 15.9 V)

3.5 A maximum

156.5 (W) × 67.6 (H) × 82.1 (D) mm,

6.2 (W) × 2.7 (H) × 3.2 (D) in

430 g, 15.2 oz

IEEE802.11 b/g/n
WEP (64/128 bit),
WPA-PSK (TKIP),
WPA2-PSK (AES)

1 to 13 (2.4 GHz band)

LMay di󰀨er depending on the country of use.

D Dimensions

156.5 (6.2)

66.5 (2.6)

192.2 (7.6)

137 (5.4)

60.8 (2.4)

172.2 (6.8)

84.4 (3.3)21.3 (0.8)

53.5 (2.1)

82.1 (3.2)

D Options

• SP-37 HORN SPEAKER

– 4 –

A7626W-1EX-4 Printed in Japan

26 (1)35.85 (1.4) 67.6 (2.7)

51 (2)

51.3 (2.01)

Unit: mm (inch)

© 2021–2023 Icom Inc.

INSTRUCTIONS

EXTERNAL INTERFACE BOX

CT-M500

■ Important

SAVE THESE INSTRUCTIONS— These instructions

contain important operating instructions for the CT-M500.

This device connects to a transceiver through a Wireless
LAN (WLAN) and expands the transceiver’s functions.

For the WLAN setting, the functions that you can operate
when connecting to the transceiver, and so on, see the
transceiver’s manual for details.
The transceiver’s manual can be downloaded from the
following internet address:
https://www.icomjapan.com/support/

LThese instructions are described based on the CT-M500 rmware
version 1.00.

Explicit denitions

■

WORD DEFINITION

R WARNING!

CAUTION Equipment damage may occur.

NOTE

Dénitions explicites

■

TERME DÉFINITION

R AVERTISSEMENT !

MISE EN GARDE Risque de dégât matériel.

REMARQUE

Icom is not responsible for the destruction, damage to, or
performance of any Icom or non-Icom equipment, if the
malfunction is because of:

Force majeure, including, but not limited to, res,

•

earthquakes, storms, oods, lightning, other natural

disasters, disturbances, riots, war, or radioactive
contamination.
The use of Icom devices with any equipment that is not

•
manufactured or approved by Icom.

Icom and the Icom logo are registered trademarks of Icom
Incorporated (Japan) in Japan, the United States, the United
Kingdom, Germany, France, Spain, Russia, Australia, New
Zealand, and/or other countries.
NMEA 2000 is a trademark of the National Maritime
Electronics Association, Inc.
All other products or brands are registered trademarks or
trademarks of their respective holders.

Personal injury, re hazard or electric shock

may occur.

If disregarded, inconvenience only. No risk

of personal injury, re or electric shock.

Risque de blessures corporelles,
d’incendie ou de choc électrique.

Inconvénient seulement, en cas de
nonrespect. Absence de risque de
blessures corporelles, d’incendie
ou de choc électrique.

Thank you for choosing this Icom product.
READ ALL INSTRUCTIONS carefully and completely
before using this product.

FCC information

■

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 interference to
radio or television reception, which can be determined by turning

the equipment o󰀨 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 di󰀨erent from

that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

CAUTION: Changes or modications to this device, not expressly

approved by Icom Inc., could void your authority to operate this
device under FCC regulations.

Information FCC

■

Cet appareil est conforme à la partie 15 de la réglementation
FCC. Son fonctionnement est soumis à la condition que cet
appareil ne provoque pas d’interférences nocives.

Cet équipement a été testé et reconnu conforme aux limites

xées pour un appareil numérique de classe B, conformément à
la partie 15 de la réglementation FCC. Ces limites ont été xées
an d'assurer une protection raisonnable contre les interférences

nocives dans une installation résidentielle. Cet équipement génère,

utilise et peut émettre un rayonnement de fréquence radio. S'il n'a

pas été installé conformément aux instructions, il peut par ailleurs
créer des interférences perturbant les communications radio.

Toutefois, il n'y a aucune garantie que les interférences ne se

produiront pas dans une installation particulière. Si cet équipement
crée des interférences perturbant la réception de la radio ou de
la télévision, comme cela peut être déterminé en éteignant et en

allumant l'équipement, l'utilisateur est invité à essayer de corriger
l'interférence en prenant une ou plusieurs des mesures ci-après :

• Réorienter ou changer de place l'antenne de réception.

• Éloigner l'équipement et le récepteur.

• Connecter l'équipement sur une prise sur un autre circuit que

celui sur lequel le récepteur est connecté.

• Faire appel au revendeur ou à un technicien radio/TV expérimenté.

MISE EN GARDE : Tout changement ou modication, non

expressément approuvé par Icom Inc., peut annuler l’autorisation de
l’utilisateur à utiliser cet appareil conformément à la réglementation FCC.

Recommendation

■

CLEAN THE DEVICE THOROUGHLY WITH FRESH WATER

after exposure to saltwater, and dry it before using. Otherwise, the

device’s keys may become unusable, due to salt crystallization.

NOTE: If the device’s waterproof protection appears defective,
carefully clean it with a soft, damp (fresh water) cloth, then dry it
before operating.
The device may lose its waterproof protection if the case is
cracked or broken, or the device has been dropped.
Contact your Icom distributor or your dealer for advice.

– 1 –

■ About CE and DOC

Disposal

■

Electromagnetic Interference

■

■ Supplied accessories

Hereby, Icom Inc. declares that the versions of
CT-M500 which have the “CE” symbol on the
product, comply with the essential requirements
of the Radio Equipment Directive, 2014/53/EU,

and the restriction of the use of certain hazardous

substances in electrical and electronic equipment Directive,
2011/65/EU. The full text of the EU declaration of conformity
is available at the following internet address:
https://www.icomjapan.com/support/

Precautions

■

R WARNING! NEVER

outlet. This may cause a re or an electric shock.

R WARNING! NEVER

source of more than 16 V DC such as a 24 V battery. This

connection could cause a re or damage the device.

R WARNING! NEVER

This could cause a re or damage the equipment.

R WARNING! NEVER

the DC power connector and the fuse holder. If an incorrect
connection is made after cutting, the device may be
damaged.

R WARNING! NEVER

storm. It may result in an electric shock, cause a re or

damage the device. Always disconnect the power source
and other connectors before a storm.

R WARNING! NEVER

operation of the vessel may be hindered, or where it could
cause bodily injury.

CAUTION: DO NOT

temperatures below –20°C ~ +60°C (–4ºF ~ +140ºF), or in
areas subject to direct sunlight, such as a dashboard.

CAUTION: DO NOT

alcohol when cleaning. This could damage the equipment
surfaces. If the surface becomes dusty or dirty, wipe it clean
with a soft, dry cloth.

NEVER

inadvertent use by unauthorized persons.

BE CAREFUL!

when continuously using for long periods of time.

BE CAREFUL!

waterproof protection*. However, once the device has been
dropped, or the waterproof seal is cracked or damaged,
waterproof protection cannot be guaranteed because of
possible damage to the case or the waterproof seal.
* Except for the DC power connector and AF Out leads.

NOTE:

vessel’s magnetic navigation compass.

NOTE:

from the transceiver or an existing access point, and in a
place where there are no obstacles between the device and
the transceiver.

place the device in an insecure place to avoid

The device’s rear panel may become hot

The device meets IPX7 requirements for

Install the device more than 1 meter from the

Install the device within approximately 15 meters

IC-M510 and CT-M500 RF Safety warning

An internal Wireless LAN module and an antenna are
supplied with the IC-M510 and CT-M500.
To comply with FCC/ISED RF Exposure for the installed
Wireless LAN unit, the device should be installed and
operated with a minimum distance of 20 cm between the
device and all persons. No other transmitting antenna is
permitted to be located within 20 cm of the device.

connect the device directly to an AC

connect the device to a power

reverse the DC power cable polarity.

cut the DC power cable between

operate the device during a lightning

place the device where normal

use or leave the device in areas with

use harsh solvents such as Benzine or

The crossed-out wheeled-bin symbol on your
product, literature, or packaging reminds you
that in the European Union, all electrical and
electronic products, batteries, and
accumulators (rechargeable batteries) must be

taken to designated collection locations at the
end of their working life. Do not dispose of these products
as unsorted municipal waste. Dispose of them according to
the laws in your area.

Précautions

■

R AVERTISSEMENT ! NE JAMAIS

CA. Cela pourrait provoquer un choc électrique ou un incendie.

R AVERTISSEMENT ! NE JAMAIS

une source d’alimentation supérieure à 16 V CC, comme
une batterie de 24 V. Cela pourrait endommager l’appareil.

R AVERTISSEMENT ! NE JAMAIS

câble d’alimentation CC lors de la connexion à une source
d’alimentation. Cela pourrait endommager l’émetteur-récepteur.

R AVERTISSEMENT ! NE JAMAIS

CC entre la prise CC et le porte-fusible. L’appareil peut être
endommagé par la suite en cas de connexion inappropriée.

R AVERTISSEMENT ! NE JAMAIS

un orage. Cela risquerait de provoquer un choc électrique, un
incendie ou d’endommager l’appareil. Toujours débrancher la
source d’alimentation et autre connecteurs avant une tempête.

R AVERTISSEMENT ! NE JAMAIS

emplacement où il pourrait gêner le fonctionnement normal
du navire ou provoquer des blessures corporelles.

MISE EN GARDE : NE PAS

dans des zones où la temperature est inférieure à –20°
ou supérieure à +60° ou dans des zones soumises au

rayonnement solaire direct, telles le tableau de bord.

MISE EN GARDE : NE PAS

tels que du Benzène ou de l’alcool lors du nettoyage, car ils

endommageraient les surfaces de l’appareil. Si l’appareil est

poussiéreux ou sale, nettoyez-le avec un tissu doux et sec.

placez

NE

pour éviter toute utilisation par des personnes non autorisées.

MISE EN GARDE :

cas d’utilisation continue sur une longue durée.

MISE EN GARDE :

à la norme IPX7*. L’étanchéité ne peut plus être garantie
après une chute de l’appareil en raison des risques de

ssures du boîtier, de dégradation du joint d’étanchéité, etc.

* Les connecteurs sur le panneau arrière ne sont pas étanche IPX7.
REMARQUE : Installer

de route du navire.

REMARQUE : Installez l'appareil à environ 15 mètres de l'émetteur­récepteur ou d’un point d’accès existant et dans un endroit où il n'y
a aucun obstacle entre l'appareil et l'émetteur-récepteur.

Si l’appareil avant est exposé à de l'eau de mer,

VOUS DE LE NETTOYER ENTIEREMENT AVEC DE
L'EAU DOUCE

avant fonctionne. Dans le cas contraire, les touches risquent
de ne plus fonctionner en raison de la cristallisation du sel.

Avertissement de sécurité RF IC-M510 et CT-M500

Un module LAN sans l interne et une antenne sont fournis
avec l'IC-M510 et le CT-M500.
Pour se conformer à l'exposition aux RF FCC / ISED pour
l'unité LAN sans l installée, l'appareil doit être installé et
utilisé à une distance minimale de 20 cm entre l'appareil
et toutes les personnes. Aucune autre antenne d'émission
n'est autorisée à être située à moins de 20 cm de l'appareil.

JAMAIS

l’appareil dans un endroit non sécurisé

La face arrière de l’appareil chau󰀨e en

L’appareil est étanche conformément

l’appareil à au moins 1 m du compas

lorsque la protection étanche sur l’appareil

relier l’appareil à une prise

brancher l’appareil sur

inverser la polarité du

couper le câble d’alimentation

utiliser l’appareil durant

installer l’appareil à un

utiliser ou placer l’appareil

utiliser de dissolvants agressifs

ASSUREZ-

When you use a Wireless LAN, pay attention to the following:

Wireless LAN products operate in the 2.4 GHz band.
The 2.4 GHz band is also used by other devices, such

as Bluetooth devices, microwave ovens, RFID systems,
amateur radio stations, and so on.
When using this device near such devices, interference may
occur, causing a decrease in communication speed, and an
unstable connection. In such cases, use this device away
from the other devices, or stop using those devices.

■ Panel description

1 2

34

D Front panel

1STATUS INDICATOR

Blinks green: Searching the transceiver.
Lights green: Connecting to the transceiver.
Lights red: Entering the WLAN Setup mode and

waiting until the transceiver sets the
WLAN setting.

2POWER INDICATOR

Lights blue when the device is turned ON.

3POWER KEY [

Hold down for 1 second to turn the device ON or OFF.

LThe device automatically connects to the transceiver.
LIf the WLAN setting is not set, the device enters the WLAN
Setup mode and waits until the transceiver sets the WLAN
setting.

4RESET KEY [RESET]

Hold down [RESET] for 3 seconds when the device is
turned ON to reset the WLAN setting.

LThe Status indicator blinks red while holding down [RESET].
LThe device also restarts in the WLAN Setup mode and waits

until the transceiver sets the WLAN setting.

]

Mounting bracket DC power cable

(OPC-2472)

For the mounting bracket

Screws
(5 × 6 mm)

Screws
(5 × 20 mm)

Flat washers (M5)

Spring washers (M5)

5

6

78

D Rear panel

5AF OUT LEADS

Connects to an External Horn Speaker.
Blue: External Horn Speaker (+)
Gray: External Horn Speaker (–)
Black, Orange: NC (Disconnected)

NOTE: The connectors are attached to keep the leads
together. Before connecting to a piece of equipment, cut
the leads to remove the connector.

6DC POWER CONNECTOR

Connects to a 13.8 V DC power source.
(+: Red, –: Black)

7NMEA 2000 CONNECTOR

Connects to an NMEA 2000 network.

8GROUND TERMINAL

Connects to a vessel ground to prevent electrical shocks
and interference from other equipment occurring.
Use a PH M3 × 6 screw (user supplied).

CAUTION: After connecting the DC power cable and AF
Out leads, cover the connector and leads with an adhesive
tape, as shown below, to prevent water seeping into the
connection.

Rubber vulcanizing tape

– 3 –– 2 –