Instructions

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6. Operating conditions
• The GMS module must be operated at direct voltage between 5 - 30 V/DC.
• For operation free of defects, the power source must be able to deliver a current of at least 1000 mA without voltage drop. It is not important
whether supply is provided by a rechargeable battery (e.g. solar rechargeable battery) or a suitable mains adapter with stabilised output.
• When installing the GSM module, ensure a sufficient cable cross-section of the connection lines.
• The GMS module should be installed in an area protected from splashing water. It can be installed in any position.
• Reception for the provider whose SIM card you want to use in the GSM module must be free of interferences at the mounting site of the GSM
module or the GMS aerial; its field strength must be as high as possible.
7. Input Function Overview
This GSM module has 9 inputs. Every input can send an SMS or email as information upon a previously defined input signal.
Observe the maximum input voltage of 2 V at the two temperature inputs (T1, T2), 14 V at the ADC and the maximum input voltage of
12 V/DC at the six optocoupler inputs (IN1, IN2, two LOG, DEL, INV)!
The following inputs are available:
• Two digital inputs „IN1“ and „IN2“ that recognise and indicate pre-defined digital switching conditions („high“ or „low“) at input voltages between
0 - 12 V/DC. These inputs are used, e.g. for smoke detectors, burglary alarms (current loops that are interrupted) or outputs of an alarm
system.
• Two digital inputs „IN1“ and „IN2“ that recognise and indicate pre-defined digital switching conditions („high“ or „low“) at input voltages between
0 - 12 V/DC depending on each other and switch the output „LOG“. Then the two inputs can be logically linked. This link is applied when, e.g.,
a burglary alarm can be activated via a timer.
• A digital input „DEL“ that recognises and indicates digital switching conditions „high“ or „low“ defined in advance at input voltages between
0 - 12 V/DC) and switches the output „DEL“ on or off with a time delay. An activation delay is applied.e.g. to activate an alarm system so that
there is still time to leave the room. Deactivation delays are found, e.g. at fan lag.
• A digital input „INV“ that recognises and indicates digital switching conditions „high“ or „low“ defined in advance at input voltages between
0 - 12 V/DC). and switches the output „INV“. It inverts the output at each rising flank at the input and thus turns each button input into the
ON/OFF function of a switch. This input is used, e.g. for power surges switches with several switches controlling a joint consumer as in the
case of several light buttons in a hallway.
• Two temperature inputs „T1“ and „T2“ are used for temperature measurement and control. One temperature sensor each (e.g. Conrad item no.
198896) can be connected to the two temperature inputs. These inputs are used, e.g. to monitor room temperatures and for targeted control
of heating systems.
• An analogue input („ADC“) can record and indicate measurement results. The input measurement range is 0 - 14 V/DC. If this voltage range
is not sufficient for your applications, voltage separators can be used for corresponding adjustment. For this, observe the additional notes in
chapter „Analogue Input (ADC)“ in these operating instructions. The analogue input is used, e.g. for fill level indicators (with slowly changing
analogue voltages of 0 to 14 V).