Sierra Wireless MP 880W Guia do Utilizador descarregar pdf (Página 31)

Hardware and Software Installation

Rev 1.5 Jul.08 31

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.

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.

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)

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.

GPS antenna

Main RF antenna

AP antenna

Serial Host

Main RF

USB Host

GPS

Ethernet Host

Power

I/O

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