Installation guide
LMU Users Guide
V1.0.6 December 10 2009
Copyright ©CalAmp DataCom Inc 2009
- 41 - CalAmp Proprietary & Confidential
5.4
An external Modem Port is only available when using the TetheredLocator adapter.
Otherwise, the Modem Port is assumed to be connected to the LMU’s internal modem.
Using the external Modem Port allows users to connect an LMU to an existing modem or
phone via a serial connection. The LMU should then be able to use the phone or modem’s
Dial-Up Networking capabilities to establish a data session.
Using the Modem Port
When working with an external modem, there are five settings you must keep in mind:
• The modem driver in use.
• The modem port’s BAUD rate
• The packet dial string
• The network username
• The network password
5.4.1 Selecting a Modem Driver
The modem driver the LMU will use is defined by S-Register 120 or S-Register 150,
depending on which Comm Profile is in use. Comm Profiles are discussed below. This
register should only be changed when using the TetheredLocator adapter, or when directed
by CalAmp personnel.
The available external modem drivers are:
• 128 – Generic 19200 BAUD, ATDT 0, No Status
• 131 – iDEN - Motorola iDEN devices, 38400 BAUD, ATD0, RALP Status
• 133 – GSM/GPRS – WaveCom, 57600 BAUD, ATDT*99***#1, WMUX Status
• 134 – GSM/GPRS – Generic, 57600 BAUD, ATDT *99***#1, no Status
• 136 – TAIP Modem – 9600 BAUD, TAIP string sent directly to modem Serial port
• 137 – No Modem
• 139 – CDMA - Kyocera M200, 57600 BAUD, ATD#777, KMIP Status
• 140 – CDMA – Generic- 57600 BAUD, ATD#777, No Status
• 141 – TDMA - Sony Ericsson DM25, 9600 BAUD, (SMS Only), no Status
• 142 – iDEN – Motorola iDEN devices, 57600 BAUD, ATDT 0, CMUX Status
• 143– GSM/GPRS – Siemens, 115200 BAUD, ATD*99***1#, PPP, Siemens
• 144 – Iridium Data modem
The available internal modem drivers are:
• 3 – iDEN LMU-4100 (TC990569)
• 11 – CDMA LMU-4100 (Kyocera M200)
• 14 – iDEN LMU (TC990599)
• 15 – GPRS LMU-4100
• 17 – CDMA LMU-4100 (WaveCom Q2438)
• 18 – GPRS LMU (Cinterion MC55)