Reference Guide for details)
You are using the standard wiring harness from CalAmp and the serial port expansion harness.
You have created a HyperTerminal or Putty session.
You have contacted the CalAmp sales team regarding the network availability of the HMU-3640
™
.
5.1 Quick Start - General Config
All HMU-3640
™
s must go through a common step during the configuration and provisioning process. Specifically, this is
pointing the HMU to
your LM Direct
™
server, either via IP or a URL.
This configuration process is accomplished via a series of AT Commands:
1. Power up the HMU-3640
™
and connect a serial cable from the HMUto your laptop
2. Open a terminal session to the HMU-3640
™
3. Enter the address of the LM Direct
™
server:
AT$APP PARAM 2319,0,ddd.ddd.ddd.ddd
AT$APP PARAM 768,0,ddd.ddd.ddd.ddd (32-bit products only)
AT$APP PARAM 769,0,ppppp
Where ddd.ddd.ddd.ddd is the publicly addressable IPV4 address of your LM Direct
™
server and ppppp is the UDP port number.
https://puls.calamp.com/wiki/HMU-3640_Hardware_%26_Installation_Guide 14/27
4. Alternatively if a URL has been set up for your LM Direct
™
server, the HMU may be programmed with:
AT$APP PARAM 2319,0,myURL.MyCompany.Com
Where myURL.MyCompany.com is the URL assigned to the server.
5. Enter ATIC to verify the correct settings are displayed for your Inbound Server.
This configuration process is accomplished via a series of SMS Commands:
1. Power up the HMU-3640
™
and your handset
2. From the handset, send an SMS message to the HMU-3640
™
phone number:
!RP,2319,0,ddd.ddd.ddd.ddd
!RP,768,0,ddd.ddd.ddd.ddd (32-bit products only)
!RP,769,0,ppppp
Where ddd.ddd.ddd.ddd is the publicly addressable IPV4 address of your LM Direct
™
server and ppppp is the UDP port number
3. Alternatively if a URL has been set up for your LM Direct
™
server, the HMU may be programmed with:
!RP,2319,0,myURL.MyCompany.Com
Where myURL.MyCompany.com is the URL assigned to the server
4. Verify your settings by sending the commands:
!RP?2319,0
!RP?769,0
5.2 Activating LTE Using AT Commands
There are two variants of LTE modems; LTE AT&T and LTE Verizon. Both variants require a SIM card to be inserted.
If you get an HMU without a SIM card (which is the typical case), the operator will simply ask for the IMEI of the HMU . The
IMEI
(International Mobile Equipment Identifier) is printed on the label of the HMU. Again, DO NOT give the operator the CalAmp
ESN of the HMU.
The operator will provide you with a SIM card for each account activated. If they are especially nice (or you are especially
persistent) they will
also give you a list tying the IMSI (International Subscriber Identifier) of the SIM to the phone number assigned to it. Please note
that the operator
will likely tie the IMSI (i.e. the SIM) to a specific IMEI. Making sure the specific SIM matches to the right IMEI isn
’
t strictly
necessary, but it
will keep everyone
’
s book-keeping a little cleaner. You may also obtain this information by running a CSV report in PULS (after
the devices have
connected to the network and sent in their first ID Report). See the PULS Users Guide for more information.
If you do happen to have a SIM card, the operator will ask for the IMSI and ICC-ID (Integrated Circuit Card Identifier) along
with the IMEI of the
HMU. Again, in return you should get a list of IMSIs and Phone Numbers.
The IMEI, IMSI and ICC-ID are all available through the
ATI1
command. The IMEI should also be printed on the label of the
HMU.
Operators can offer more than one type of APN and can even set up a custom APN just for your devices. The rates they charge
will vary
depending on the APN service you want. Operators may also request you use a blank APN. With the APN, you may also receive
a username and
password combination.
The last item an operator may provide is a SIM PIN. The PIN is effectively a password to the device. The main difference here is
that the PIN will
restrict all the capabilities of the device, where the SPC is used just for configuration.
The activation sequence for an
LTE AT&T
modem would therefore look as follows:
AT$APP PARAM 2306,0,“myAPN.myOperator.com”
