User manual LOWRANCE NMEA 2000 GENERAL INFORMATION PAMPLET

[. . . ] 988-0154-173 NMEA 2000® Networks General Information The NMEA 2000 Network DeviceNet is the communication bus standard developed by the National Marine Electronics Association (NMEA) for use in boats. Lowrance has introduced a line of products that can communicate over a NMEA 2000 network, helping you get the most out of this technology. This instruction sheet will show how a NMEA 2000 network is created, configured and installed. Read the next few pages to become familiar with some of the following terms: NMEA 2000 Network/LowranceNET, NMEA 2000 Bus/Network Bus, Network Backbone, Network Nodes and Linear Architecture. Setup and Installation of NMEA 2000® Network or LowranceNETTM A NMEA 2000 network is a communications link between two or more devices that transfer NMEA 2000 information. [. . . ] 7 Power Connections Your unit comes with a power/data cable that splits into three branches, each with several exposed wires. The thicker two-wire cable (red and black) is the power supply for your display unit. The branch with three wires (red, black and shield) is the power cable for a NMEA 2000 network. It is labeled "NMEA 2000 POWER. " The branch with 5 wires (blue, yellow, orange, green and shield) is a data cable, labeled "RS-232 COMM. " It supports two serial communication ports. These allow your unit to exchange NMEA 0183 data with another device, such as an autopilot, DSC marine radio or computer. Display unit power wires: red and black To unit NMEA 2000 power wires: red, black and shield Data cable wires: blue, yellow, orange, green and shield The Power/Data cable for this unit. NOTE: There are two basic power connection options, which are shown in the following two diagrams. Read the following instructions carefully to determine which power connection applies to your unit. Caution: All of the wires in the power/data cable have bare ends for easier installation. The bare ends on any unused wires could cause an electrical short if left exposed. Make sure to attach the in-line fuse holder to the red lead as close to the power source as possible. If, for example, you have to extend the power cable to the power bus or battery, attach one end of the fuse holder directly to the power bus or battery. This will protect both the unit and the power cable in the event of a short. The unit, however, will not work until the wires are attached correctly. 9 Power Diagram A To unit Mandatory network power-off switch NMEA 2000 Power Cable 3-amp fuse Shield Display Unit Power Cable 3-amp fuse Black Red Recommended display unit power-off switch Data Cable Black 12 volt DC power source Use this method if you are powering the display unit and a GPS module or the display unit and a NMEA 2000 network. The network and any NMEA 2000 devices, including the GPS module, will not operate unless the NMEA 2000 Power Cable is connected to power. The NMEA 2000 power cable must be connected to power even if your only NMEA 2000 device is the GPS module and it is connected to the display unit's Network socket. If you have a network that is already powered, see diagram B below. ) 10 Power Diagram B To unit Red wire with 3-amp fuse Display Unit Power Cable All unused Data or NMEA 2000 power wires should be capped with wire nuts and electrical tape to prevent shorts. Data Cable Black wire Recommended power off switch 12 volt DC power source NMEA 2000 Power Cable Use this method if you are only powering your display unit and are not powering a NMEA 2000 network or any NMEA 2000 accessory device, including a GPS module. The method in diagram B is also used when your display unit is connected to a NMEA 2000 network that is already connected to power. (Never connect multiple power sources to a NMEA 2000 network. ) Powering a NMEA 2000 Network Bus A NMEA 2000 bus must be connected to a power source to operate. If you have a pre-existing NMEA 2000 network installation, it may already be connected to another power source. If you are not sure about a network's power status, consult the boat manufacturer or dealer. If your NMEA 2000 bus is already powered, you can ignore the NMEA 2000 Power cable and use the method shown in Power Diagram B above. If you need to power your NMEA 2000 bus, attach the NMEA 2000 Power cable to an accessory switch as indicated in power diagram A. 11 The NMEA 2000 Power cable's red wire should be attached (with provided 3-amp fuse) to the positive (+) terminal. The NMEA 2000 Power cable's black and shield wires should be attached to the negative (­) terminal. [. . . ] DeviceNet Micro-C connector (right) used in some NMEA-2000 buses. Some boats will come with a manufacturer-installed NMEA 2000 network that does not use red or blue LowranceNET connectors. Many of these networks will use the DeviceNet Micro-C connector shown in the image above. Blue connector display units and components also can be used with DeviceNet Micro-C connectors with the purchase of a DeviceNet Micro-C to Lowrance Male converter bus adapter cable. To NMEA 2000 network port Micro-C to Lowrance Male converter. To Lowrance unit or LEI accessory With this adapter cable, you can connect the Micro-C plug (left end of cable) to an available network connector on your boat's NMEA 2000 bus. [. . . ]