User's Manual

CHAPTER2
InstallingtheRTU
11
6. Put the four screws back in place, applying moderate force,
tightening crosswise. Be sure not to overtighten the screws or
leave them too loose.
This completes the SIM-card installation. For additional information,
please contact Adcon Telemetry or your local reseller of Adcon
Telemetry products.
ActivatingtheSIMCard
You need to activate the card by using a personal identification
number (PIN). This number is in the package you received from your
cellular service provider.
Before you can activate your card, the A753 must be properly
powered. As the units are delivered from the factory with the batteries
uncharged (they have a longer shelf life in this state), you must
charge the batteries first. The best way to do this is to attach the solar
panel to the power connector and expose the RTU to sunlight for at
least one hour. If the sky is overcast the battery will still charge, but at
a lower rate; in this case allow at least four hours for charging.
You need a serial adapter for configuring the RTU (e.g. for entering the
PIN code, etc.). You can order this serial adapter from ADCON
Telemetry or your distributor. Please proceed to set up the serial
connection to the RTU as follows:
1. Connect the serial cable to the COM port of your PC and to the
A753. Configure your terminal as follows:
• 19200 baud
•1 stop bit
• 8 data bits
•no parity
• no handshaking protocol (neither hardware nor software)
For more details, see “Communicating with the RTU” on page 22.
2. Make sure that you can communicate with the RTU by pressing
the enter key. The device will answer with its own ID number and
a hash sign (#).
3. Enter the command GSMPIN nnnn (where nnnn is the PIN code).
If the PIN conforms to the standard PIN format requirements, the
RTU will answer ID GSMPIN #, where the hash mark represents
the PIN (a zero indicates an invalid PIN, so check with your
provider if you get a zero).
Note: The user can enter the PIN code a maximum of three times (possibly
more, depending on the setting on the SIM). After the maximum is
reached, the SIM is locked and must be unlocked using a mobile
phone. To unlock the SIM, you will also need the PUK code, which is
included in the SIM package you got from your provider.
This completes the PIN entry procedure. After a few minutes of
initialization you can check the status of the A753 at any time by