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Command Link Plus and Helm Master Bus Network 

Connection Considerations

NOTICE

If you have an existing engine network on your boat, it should 

already be connected to power.

This display connects to the Command Link Plus or Helm 

Master engine network on your boat to read data from 

compatible devices such as certain engines. The engine 

network follows a standard and uses proprietary messages.
The Furukawa connector on the end of the power cable 

connects the display to the existing engine network, using the 

appropriate length pigtail bus wire. You must route the cable 

within 6 m (20 ft.) of the engine network backbone.
For more information on connecting to your engine network, see 

the engine documentation.

NMEA 2000

®

 Considerations

NOTICE

If you are installing a NMEA 2000 power cable, you must 

connect it to the boat ignition switch or through another in-line 

switch. NMEA 2000 devices will drain your battery if the NMEA 

2000 power cable is connected to the battery directly.

NOTE: 

If you are connecting this device to an existing NMEA 

2000 network, the NMEA 2000 network should already be 

connected to power.
If you are connecting this device to an existing NMEA 2000 

network by another manufacturer, you should install a NMEA 

2000 Power Isolator (010-11580-00) between the existing 

network and this device.
This device can connect to a NMEA 2000 network on your boat 

to share data from NMEA 2000 compatible devices such as a 

GPS antenna or a VHF radio. If you do not have an existing 

NMEA 2000 network, you can create a basic one. For more 

information, go to 

www.nmea.org

.

The port labeled NMEA 2000 is used to connect the device to a 

standard NMEA 2000 network.

Item

Description

À

CL7 display

Á

GPS antenna

Â

Ignition or in-line switch

Ã

NMEA 2000 power cable

Ä

NMEA 2000 drop cable

Å

12 Vdc power source

Æ

NMEA 2000 terminator or backbone cable

Ç

NMEA 2000 T-connector

È

NMEA 2000 terminator or backbone cable

Garmin Marine Network Considerations

NOTICE

A Garmin Power over Ethernet (PoE) Isolation Coupler (P/N 

010-10580-10) must be used when connecting any third-party 

device, such as a FLIR

®

 camera, to a Garmin Marine Network. 

Connecting a PoE device directly to a Garmin Marine Network 

chartplotter damages the Garmin chartplotter and may damage 

the PoE device. Connecting any third-party device directly to a 

Garmin Marine Network chartplotter will cause abnormal 

behavior on the Garmin devices, including the devices not 

properly turning off or the software becoming inoperable.

This device can connect to additional Garmin Marine Network 

devices to share data such as radar, sonar, and detailed 

mapping. When connecting Garmin Marine Network devices to 

this device, observe these considerations.
• All devices connected to the Garmin Marine Network must be 

connected to the same ground.

• A Garmin Marine Network cable must be used for all Garmin 

Marine Network connections.

◦ Third-party CAT5 cable and RJ45 connectors must not be 

used for Garmin Marine Network connections.

◦ Additional Garmin Marine Network cables and connectors 

are available from your Garmin dealer.

• The ETHERNET ports on the device each act as a network 

switch. Any compatible device can be connected to any 

ETHERNET port to share data with all devices on the boat 

connected by a Garmin Marine Network cable.

Differential NMEA

®

 0183 Connection Considerations

This device can receive differential NMEA 0183 information from 

a compatible device.
• See the installation instructions for the NMEA 0183 device to 

identify the wires.

• See the table and wiring diagram when connecting the data 

cable to NMEA 0183 devices.

• You must use 28 AWG, shielded, twisted-pair wiring for 

extended runs of wire. Solder all connections and seal them 

with heat-shrink tubing.

• See 

Differential NMEA 0183 Receive Information

, page 4

for a list of NMEA 0183 sentences that can be received by 

this device.

• The internal NMEA 0183 ports and communication protocols 

are configured on the connected display. See the NMEA 

0183 section of the display owner's manual for more 

information.

• Do not connect either NMEA 0183 data wire from this device 

to power ground.

• The power cable from this device and the NMEA 0183 device 

must be connected to a common power ground.

À

N0183+, white

Á

N0183-, blue

Â

NMEA 0183 device

Tank Level Sensor Connection Considerations

You can connect up to six tank level sensors to the device.

NOTICE

You must connect fuel sensors to inputs 1, 2, 3, or 4. If you 

connect a fuel sensor to input 5 or 6, the fuel management 

system will not working properly.

3

Summary of Contents for CL7

Page 1: ...een and card reader if applicable The location must be strong enough to support the weight of the device and protect it from excessive vibration or shock To avoid interference with a magnetic compass the device should not be installed closer to a compass than the compass safe distance value listed in the product specifications The location must allow room for the routing and connection of all cabl...

Page 2: ...hey are secured and cannot become loose The cables may be packaged without the locking rings installed The cables should be routed before the locking rings are installed After installing a locking ring on a cable you should make sure the ring is securely connected and the o ring is in place so the power or data connection remains secure Connecting to Power WARNING When connecting the power cable d...

Page 3: ...e directly to a Garmin Marine Network chartplotter damages the Garmin chartplotter and may damage the PoE device Connecting any third party device directly to a Garmin Marine Network chartplotter will cause abnormal behavior on the Garmin devices including the devices not properly turning off or the software becoming inoperable This device can connect to additional Garmin Marine Network devices to...

Page 4: ...oth technologies 2 4 GHz 19 5 dBm nominal Memory card 2 microSD card slots 32 GB max card size 1The device withstands incidental exposure to water of up to 1 m for up to 30 min For more information go to www garmin com waterrating 2Dependent upon the transducer 3Dependent upon the transducer rating and depth 4Dependent upon the transducer water salinity bottom type and other water conditions Diffe...

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