Specifications

6
Note: The GSM phone connected to the GSM module is loaded from the module.
GSM network specifications
- can be used in any GSM authorized network
Usable GSM phones:
- Ericsson A1018s, T28.
Other technical features
- average duration of GSM communication: 8s;
- active inputs by: GND;
- maximum current at “open collector” outputs: 500mA.
WARNING:
For this present version, the software in the GSM communicator does not allow
using the GSM phone connected to the GSM module (in function) for vocal phone
communications. Hence, if this GSM phone is used simultaneously for
conversations, the proper functioning of the GSM communicator is no longer
assured. The mobile phone of the communicator is recommended to be used
for this application exclusively. Its client number must not be disclosed as
someone could call it. However, if the phone must be used for an emergency, the
phone should be programmed as the client number is not displayed on the called
phone display.
The GSM hardware was designed to allow more developed versions of the software
(free of charge upgrades) in the future. These versions will allow implementations of
automation commands on the present hardware (6 outputs at the most), and remote
process supervision (6 inputs at the most).
The present software version of the GSM communicator allow its usage together
with Xwatch DPC-08 monitoring station produced by Romano Electro Int’l, and SMS
message transmission on the mobile phone of the burglary control panel protected
objective’s owner.
GSM phones with versions older than 1999 must not be used. The software version
of the mobile phone can be read if successively pressing the next keys: “Æ
ÆÆ
Æ” “*” “Å
ÅÅ
Å”
“Å
ÅÅ
Å ” “*” “Å
ÅÅ
Å ” “*”.
INSTALLATION
The GSM-21T will be connected between the burglary control panel and the GSM
phone.
GSM-21T installation
The connectors’ order, from left to right, is the next:
- JR1 - 6 pin connector: the cable is connected to the GSM phone;
- DIG_COMM: must be connected to the phone line connectors of the burglary
control panel;