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LMS-480M & GlobalMap 4800M Addendum 1
Pub. 988-0151-182

Addendum I
LMS-480M, LMS-480DF &
GlobalMap 4800M
This addendum addresses new items packed with your unit, changes to
installation procedures, and NMEA 2000 upgrades not documented in
the LMS 480M, LMS-480cDF and GlobalMap 4800M manuals.
Your unit now packs with a 2-foot (61 cm) blue-to-red adapter cable, 15-
foot (4.6 m) extension cable, LGC-3000 GPS module, double T connector
and two 120-ohm terminators.
The segment covering changes in installation procedures provides new
backcase diagrams and information on how to add your unit to a new
NMEA 2000 standard DeviceNet network.
The upgrades covered in this document include information on the new
LGC-3000 and instructions on how to configure and calibrate NMEA
2000 devices through the NMEA 2000 menu.
NOTICE!
The storage and operation temperature range for your unit is from -20
degrees to +167 degrees Fahrenheit (-28 degrees to +75 degrees Cel-
sius). Extended storage or operation in temperatures higher or lower
than specified will damage the liquid crystal display in your unit. This
type of damage is not covered by the warranty.
Pack Assembly
Your unit is packed with a 2-foot blue-to-red adapter cable, making it
compatible with NMEA 2000 standard DeviceNet networks. Networks
consisting of LowranceNet
red connectors and Micro-C connectors
are examples of a DeviceNet network. Your unit is also compatible with
LowranceNet blue connector networks.
To add your unit to a NMEA 2000 DeviceNet network, the blue end of
the blue-to-red adapter cable must be connected to the unit's network
socket; otherwise you will not be able to use the red connector cables and
devices that came with your unit. Red connector components packed with
the unit include: 15-foot extension cable, LGC-3000 GPS module, double
T connector and two 120-ohm terminators. Instructions and diagrams
covering the use of items packed with your unit are contained in the Power
Connections segment below.
®
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Power Connections
Your unit comes with a power/data cable that splits into three
branches, each with several exposed wires.
The thicker three-wire cable (white, red and black) is the power supply
for your display unit. This cable has no label.
The thinner 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 four wires (blue, yellow, orange, and shield) is a data
cable, labeled "RS-232 COMM." It supports a serial communication
port. This allows your unit to exchange NMEA 0183 data with another
device, such as an autopilot, DSC marine radio or computer.
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. Depending on your configuration, you may not use all of
these wires.


The Power/Data cable for this unit.
Caution:
All of the wires in the power/data cable have bare ends for eas-
ier installation. The bare ends on any unused wires could cause
an electrical short if left exposed. To prevent this, you should
cover the individual wire ends either by capping them with
wire nuts, wrapping them with electrical tape or both. (You
should cut off the bare wire before taping off the ends.)
To unit
Display unit power wires:
white, red and black
NMEA 2000 power wires:
red, black and shield
Data cable wires:
blue, yellow, orange,
and shield 3
Powering Your Display Unit
The display unit works from a 12-volt DC battery system. Attach the
display power cable (with provided 3-amp fuse) to an accessory switch
or power bus. If this results in electrical interference, connect direct to
a battery but install an in-line switch on the cable.
Caution:
We strongly recommend that you shut off the power supply to the
power cable when the unit is not in use, especially in saltwater en-
vironments. When the unit is turned off but still connected to a
power supply, electrolysis can occur in the power cable plug. This
may result in corrosion of the plug body along with the electrical
contacts in the cable and the unit's power socket. Risk of electroly-
sis corrosion is even greater when the cable is unplugged from the
unit, but still connected to a power source. We recommend you
connect the power cable to the auxiliary power switch included
in most boat designs. If that results in electrical interference, or
if such a switch is not available, we recommend connecting di-
rect to the battery and installing an in-line switch. This will let
you shut off power to the power cable when the unit is not in use.
When you are not using the unit, you should always shut off
power to the power cable, especially when the power cable is dis-
connected from the unit.
WARNING:
This product must be independently fused with the en-
closed 3-amp fuse (or equivalent), even if you connect to
a fused accessory or power bus.
If a malfunction happens inside the unit, extensive dam-
age can occur if the enclosed fuse is not used. As with all
electrical devices, this unit could be damaged to a point
that it is unrepairable and could even cause harm to the
user when not properly fused.
Failure to use a 3-amp fuse will void your warranty.
If possible, keep the power cable away from other boat wiring, especially
the engine's wires. This will provide the best isolation from electrical
noise. If the cable is not long enough, splice #18 gauge wire onto it.
The display power cable has three wires, white, red and black. Red is the
positive (+) lead, black is negative () or ground. The white wire is un-
used by your unit and should be capped. Make sure to attach the in-line
fuse holder to the red lead as close to the power source as possible. 4
For example, if 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.
This unit has reverse polarity protection. No damage will occur if the
power wires are reversed. However, the unit will not work until the
wires are attached correctly.
Power Diagram A

Use this method if you are powering the display unit and a GPS mod-
ule or the display unit and a NMEA 2000 network. (Fuses may be dif-
ferent from those shown.)
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. (However, never
connect multiple power sources to a NMEA 2000 network.
The method in diagram B is also used when your display unit is con-
nected to a NMEA 2000 network that is already connected to power.
(Never connect multiple power sources to a NMEA 2000 network.)
Shield
Mandatory
network
power-off
switch
Black
Black
Red
Recommended
display unit
power-off switch
To unit
12 volt DC
power source
Data Cable
NMEA 2000
Power Cable
3-amp fuse
3-amp fuse
Display Unit
Power Cable



White
(unused) 5
Powering a NMEA 2000 Network Bus
A NMEA 2000 bus must be connected to a power source to operate.
NMEA 2000 devices, including GPS modules, draw their power from
the network bus. If you have a pre-existing NMEA 2000 network instal-
lation, 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. Never attach two power sources to a single NMEA 2000 bus.
Power Diagram B

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. (Fuse may be different from that shown.)
If you do need to power your NMEA 2000 bus, attach the NMEA 2000
Power cable to an accessory switch as indicated in power diagram A on
page 4. 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 both be attached to
the negative () terminal.
WARNING:
The NMEA 2000 network bus is always on and constantly
drawing power. You must connect NMEA power to a
switched power source so you can turn off the network
Red wire with
3-amp fuse
Black wire
Recommended
power off switch
Data Cable
To unit
NMEA 2000 Power Cable
White wire
(unused)
12 volt DC
power source
All unused Data
or NMEA 2000
power wires
should be
capped with
wire nuts and
electrical tape
to prevent
shorts.
Display Unit
Power Cable 6
when not in use. Failure to connect to and use a power
switch will drain your boat battery, which could stop