Sierra Wireless MP 880W manual Install the power harness, Install the antennas and cables

Note: To avoid RF interference problems and possible damage to the MP modem, do not power on the MP modem before connecting the Main RF antenna.

Rev 1.5 Jul.08

Hardware and Software Installation

Install the antennas and cables

Note: When connecting the cables, hand-tighten the connectors; do not use tools.

To install the Main RF, GPS, and AP antennas:

1.Mount each antenna according to the instructions provided with it.

2.Thread the antenna cables to the MP modem. Secure the cables as necessary.

3.Connect the Main RF antenna cable to the TNC connector on the rear of the MP modem.

4.If you are using GPS, connect the GPS antenna cable to the GPS antenna connector on the rear of the MP modem.

5.If you are using WAP, connect the AP antenna cable to the AP antenna connector on the rear of the MP modem. (MP 880W only)

GPS antenna AP antenna

Serial Host	USB Host GPS Ethernet Host	AP	I/O
Main RF			Power

Main RF antenna

Figure 3-5: The MP modem’s SMA connector for the GPS and AP antennas (top), and the TNC connector for the Main RF antenna (bottom).

The AP antenna must be installed by a professional and there must be a separation of at least 20 cm. between the AP antenna and the main RF antenna.

Note:

Step 3—Install the power harness

In a typical installation, the MP modem is connected to the vehicle’s battery with the power harness. The MP modem supports a voltage range between 9 volts direct current (VDC) and 36 VDC, and is designed for both 12 VDC and 24 VDC vehicle electrical systems.

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