Sierra Wireless MP 875 사용자 설명서
MP875 Modem User Guide
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Note: Electrical installations are potentially dangerous and should be
performed by personnel thoroughly trained in safe electrical wiring
procedures for vehicles.
performed by personnel thoroughly trained in safe electrical wiring
procedures for vehicles.
Power connector
Note: Connector part numbers:
39-01-2040 or 39-01-2045. Pins
part number: 39-00-0039.
39-01-2040 or 39-01-2045. Pins
part number: 39-00-0039.
The power harness connects to the MP modem with a Molex
connector.
connector.
Power connector (Molex) pinouts
The pinouts for the Molex connector on the power harness are:
Figure 3-6: Pinouts for the power harness.
The battery (red) and ignition sense (white) wires in the power
harness include 5 A fuses. The black ground wire is not fused.
(See “Ground the power harness” on page 34.) Replacement
power harnesses are available from Sierra Wireless.
harness include 5 A fuses. The black ground wire is not fused.
(See “Ground the power harness” on page 34.) Replacement
power harnesses are available from Sierra Wireless.
Note: The battery cable used for a car, truck, or other mobile
connection must be less than 3 meters in length.
connection must be less than 3 meters in length.
Vehicle installation
This section applies to installing the MP modem in a vehicle. If
you are installing it in an office, see “Office installation” on
page 35.
you are installing it in an office, see “Office installation” on
page 35.
Ignition sense on/off wiring
This section only applies to installing an MP modem in a
vehicle. If you are installing the MP modem in an office
building, use the AC/DC adapter.
vehicle. If you are installing the MP modem in an office
building, use the AC/DC adapter.
White wire
(Ignition sense)
Red wire
(Battery)
Unused
Black wire
(Ground)