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Once configured, you may verify that the TTU-453
0’s™ modem has registered to the CDMA network.
Enter:
AT$APP COMM STATUS?
The response should be similar to:
CDMA Service:
IS-2000
Connection:
Yes
RSSI:
-80 dBm
Channel:
0
Band:Side:
800:B
Base Station ID: 0
Network ID:
0
System ID:
4145
ESN (Modem S/N: 2676319948 [9F8566CC]
Phone Number:
1234567890
IMSI:
310001234567890
CarrierConfig:
1
The Phone Number field should match the <Phone Number> value you used in step 3 or 4. The last 10
digits of the IMSI field should match the <MSID> value you used in step 3 or 4.
5 Installing the TTU
The installation of the TTU and its antennas can have a major impact on the TTU
’s performance. It is
recommended that installers be familiar with the installation of GPS and cellular devices and are comfortable in
a vehicle environment.
5.1 Preparing for Installation
Be sure you have received all the TTU components you need. This must include:
The TTU to be installed
A power harness
GPS Antenna (for external devices)
Cellular Antenna (for external devices)
Optional Components: