Installation guide

LMU Users Guide

V1.0.6 December 10 2009

- 29 - CalAmp Proprietary & Confidential

AT$APP PARAM 1024,8,1,1

Turn on RMC

AT$APP PARAM 1024,8,16,16

5.1.3 Host Mode – Dial-Up Networking

The LMU-4100’s™ Host Port can be used by a laptop or PDA to establish a Dial-Up

Networking session. This is to allow the laptop or PDA access to the Internet to enable such

applications as email and web-browsing.

There are two basic steps to accomplish this:

1. Install a modem driver

2. Create the Dial-Up Networking session

The details on each of these steps are described in the Adding a Modem Driver and Creating

a Dial-Up Networking Session Appendixes of this document.

Depending on the wireless networking technology employed by the LMU-4100, there are

several other steps you should take to ensure uninterrupted operation.

5.1.3.1 Disable Connection Monitoring

The Connection Monitor is used by the LMU-4100™ to ensure that the data session with

the wireless modem is still valid. In some cases, this may reduce the stability of Dial-Up

Networking session. The connection monitor is controlled by two S-Registers, 152 and 154.

S-Register 152 should be set to 0 and for S-Register 154 bit 2 should be cleared and bit 3

should be set. The two commands you would use to accomplish this are:

ATS152=0

AT$APP PARAM 1024,34,12,8

Please note that the connection monitor is described in detail later in this document.

5.1.3.2 Disable Network Status Queries

For the Kyocera based CDMA LMU-4100™ it is advisable to disable any KMIP

polling, as

any missed KMIP messages may cause the LMU to reset the modem. A modem reset would

then cause the Dial-Up Networking session to be torn down. KMIP polling is controlled by

S-Register 153. To disable KMIP polling you would use:

ATS153=0

One question that may arise is why not use ATS154=8 instead of the PARAM command. The basic

answer is so that we do not interfere or change any settings we do not absolutely need to. We will make

heavy use of parameter bit masking through-out this document for that reason.

KMIP is a protocol the LMU-4100 uses to talk to the Kyocera M200 CDMA modem. It is used to pull

modem information such as carrier id and RSSI.