66250756-EN - V2.1 - 05/11/19
- 34 -
4000 Series GSM Lite Audio Intercom - Technical Manual
4000 Series GSM Lite Audio Intercom
Programming the GSM Intercom
Divert Calls to Master Number: nn = 03
When in this mode, the AO1 terminal is used exclusively for monitoring the status of a switched input to decide if calls should be
diverted to the master number or not. See example, Fig.19, on page 19.
Call Activate (Timed): nn = 04
AO1 output will activate when a call begins and deactivate when the auxiliary 1 output time (A1T) expires. See example, Fig.20, on
page 20.
Enable/Disable “Dial to Open”: nn = 05
When in this mode, the AO1 terminal is used to enable/disable the dial to open feature via an external C/NO switched input across
terminals AO1 & g, (for example the C/NO relay contacts on a timeclock could be connected across terminals AO1 & g on the GSM
LITE intercom. When the timeclock relay is ON then no dial to open numbers are allowed. The GSM LITE answers the call and awaits
the master code to be entered. When the timeclock relay is OFF all dial to open numbers will operate as normal). See example,
Fig.21, on page 20.
1111A1Mnn Store the AO1 mode nn = 00 - 05.
1111A1Mnn? Store the AO1 mode nn = 00 - 05. Also send a conrmation text back to the sender.
1111A1M? Query the current stored AO1 mode. A text message will be sent back to the sender
showing the stored A1O mode.
SET DAYS TO WAIT BEFORE MAKING A CALL NOD
In the event the GSM LITE intercom panel is not used for long periods of time it could be possible that the network disconnects it. To
prevent this from happening it is possible to program a time period (from 01 – 99 days or disabled 00) to wait before the intercom
panel makes a short call to refresh the connection to the network. This time period is reset after each call made on the system and
will only happen if the full time period elapses without any incoming or outgoing calls.
1111NODnn Store the time nn = time in days (e.g. nn = 07, time = 7 days).
1111NODnn? Store the time nn = time in days. Also send a conrmation text back to the sender.
1111NOD? Query the current stored time. A text message will be sent back to the sender showing
the stored time.
DIVERT TIME DIT
The divert time is the number of seconds to wait for a call to be answered before diverting to the second number. The default time
is 15 seconds (the count down begins from when the call button is pressed, but is refreshed when the telephone begins to ring)
and can be set from 01 – 99 seconds.
1111DITnn Store the divert time nn = time in seconds (e.g. nn = 15, time = 15 seconds).
1111DITnn? Store the divert time nn = time in seconds. Also send a conrmation text back to the
sender.
1111DIT? Query the current stored divert time. A text message will be sent back to the sender
showing the stored divert time.
CHECK SIGNAL STRENGTH SIG
At any time the signal strength of the GSM LITE can be checked (also see notes understanding the signal strength on page 44). It
is advisable that when the GSM is rst setup and before any other programming is carried out to check the signal strength of the
GSM LITE intercom. If the signal strength is too low the GSM intercom may not operate properly and therefore the GSM antenna will
need to be repositioned to increase the signal strength. Use the following command to check the signal strength.
1111SIG? Check the signal strength of the GSM LITE intercom and send a conrmation text back to
the sender.
CHECK SOFTWARE VERSION VER
It is possible to check the current version of software in the GSM LITE module. This may be necessary to see if an update is required for
any additional features or updates on the GSM LITE intercom which may be included on later versions. Use the following command
to check the software version.
1111VER? Check the software version of the GSM LITE intercom and send a conrmation text back
to the sender.
FORCED DIAL/DIAL A NUMBER DLE
A useful feature of the GSM LITE intercom is its ability to call a number sent to it in a text message. This feature can be used when
setting up the SIM card. For example, disabling the voicemail facility or disabling automatic SMS messages or missed calls. Any