6/20/2014
LMU-2000 Hardware & Installation Guide - PULS Wiki
https://puls.calamp.com/wiki/LMU-2000_Hardware_%26_Installation_Guide
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Only enter this next command if you have been given a non-zero PIN as any errors may lock you out of the
modem.
AT$APP PIN <SIM pin>
You can confirm activation by watching the Comm LED to see if it goes solid. You may also confirm
activation using
AT$APP COMM STATUS?
A good response should look similar to the following:
GSM Registered: Yes
GPRS Registered:
Yes
Connection:
Yes
RSSI:
-70 dBm
BER:
0
Channel:
0
Cell ID:
0
Base Station ID:
0
Local Area Code:
0
Network Code:
38
Country Code:
310
IMEI (Modem S/N):
500167110060440
IMSI (SIM S/N): 310380100521849
Phone Number:
GPRS APN:
IP:Public
Quality of Srvc:
1,0,0,3,0,0
GSM Class:
B
4.4 Accessing the SIM
The following instructions should be used when attempting to access the SIM in a GSM LMU-2000™.
1. Remove the top plate of the LMU-2000™. The LMU-2000™’s enclosure is held together by 4 plastic
clips. To remove the cover, squeeze the top plate of the LMU near the VBus header and pull up then
repeat this action near the SIM cover.
