https://puls.calamp.com/wiki/TTU-2900_Hardware_%26_Installation_Guide
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7/21/2020
TTU-2900 Hardware & Installation Guide - PULS Wiki
Radio Access
: GSM
Network Reg.
: Yes, Home
Data Reg.
: Yes, Home
Connection
: Yes
IMEI (Modem S/N): 351802055396182
IMSI (SIM ID)
310410202524377
ICC-ID (SIM S/N): 89014102212025243778
Phone Number
:
GPRS APN
: ISP.CINGULAR
include under the dash close to the front wind-shield.
Attach the LMU to the solid body of the vehicle, not to plastic panels. The LMU can be placed out of sight by removing interior trim and molding
to expose available space, then replacing the trim once the LMU is in place.
5.5.2
Connect power, ignition, and ground.
The power input (red wire) must be connected to a constant (un-switched) +12 VDC or +24 VDC supply; preferably, connected directly to the
vehicle battery terminal or as close to it as possible. This connection point should be fuse protected to not more than 5 Amps.
The ignition input (white wire) must be connected to the vehicle ignition or another appropriate key operated line, such as ACCESSORY, ensuring
that power to the ignition wire is available only when the vehicle ignition is on.
The ground line (black wire) must be connected to chassis ground.
Failure to connect these lines in the manner described may result in discharge of the vehicle battery.
For best results, it is strongly recommended that the LMU connection be on its own circuit. Connect the power input directly to the vehicle battery
if possible and protect the circuit with an inline fuse. If you must connect through the fuse box, use standard commercial wiring practices to create a
permanent installation rather than using press-in fuse clips or other temporary measures.
DO NOT connect the power cable to the LMU at this time.
5.5.3
Typical Connection Sequence
Connect any peripherals to the LMU
Plug in the power harness.
The physical installation of the LMU hardware is now complete.
5.6
Installation Verification
In many cases it is desirable to verify that an installed TTU-2900
™
is working properly. That is, installers should verify that the GPS and
communications functions of the TTU-2900
™
are working properly before departing the installation site. In more robust cases, some key
configuration settings such as the Inbound Address and URL should also be verified.
Note that these processes are all based on issuing AT Commands to the TTU-2900
™
. It is expected that installers will have access to a serial port
expansion cable and a laptop or PDA capable of a terminal connection. Alternatively, an SMS message can be sent to an TTU-2900
™
to obtain
its current status.
5.6.1
Comm Verification
Installers should first verify that the TTU-2900
™
has been acquired and has registered to the wireless network. This may be verified in one of two
ways. First, installers may look at the Comm LED (i.e., the one closest to the SMC antenna connector). If this LED is solid, then the LMU has
registered to the network and established a data session.
If the LED is not visible, then Comm may be verified using an AT Command:
Depending on the wireless network being used something similar to what is shown below will be displayed. It is important to verify that 'Yes'
values are displayed at the top for Data and Network registration and the correct APN is displayed.
RSSI
:
BER
:
-97 dBm
99
Channel
:
737
Cell ID
:
3441
Base Station ID :
40
Local Area Code :
31003
Network Code
:
410
Country Code
:
310
ATIC
