Installation Manual

CHAPTER 4: PRODUCT INSTALLATION
2003 IPMobileNet, Inc. 28 IPSeries MR User Manual / Rev. A / 08-Apr-03
Measuring Insertion Loss
To measure Insertion Loss of an unterminated length of coax, perform the following steps:
Step 1 Connect the antenna to be tested to the appropriate Antenna Analyst.
Step 2 Turn on the Antenna Analyst and the Return Loss is displayed in dB to the left of the
VSWR curve.
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To switch from the RETL mode to VSWR mode, refer back to the previous set of
instructions.
Step 3 Divide the result by two (2).
Voice Interface Unit Connections
If connecting a VIU, an additional 10-ft serial cable is required (IPMN p/n: 156-0245-010 included with
VIU).
To connect the serial cables, perform the following steps:
Step 1 Attach 20-ft serial cable male connector (DB9M) to the mobile radio.
Step 2 Route the female connector (DB9F) to the driver compartment and connect to the
serial port located on the rear of the VIU near the microphone hang up clip.
Step 3 Attach the 10-foot serial cable male connector (DB9M) to the other serial port
located on the rear of the VIU.
Step 4 Route the female connector (DB9F) serial cable to the serial port located on the rear
of the mobile computer.