5
Safety instructions
The SMSB242/SMSB482 contains the latest generation of GSM quad-band module. The instructions contained in this
manual must be precisely observed for correct installation and proper use.
Do not install the SMSB242/SMSB482 in the vicinity of pacemakers, hearing aids or medical devices in general. The
SMSB242/SMSB482 can interfere with the correct operation of these devices.
The SMSB242/SMSB482 may not be installed in aircraft.
The SMSB242/SMSB482 may not be operated in atmospheres with gas or flammable gases.
The SMSB242/SMSB482 operates using a wireless signal. No wireless operator can guarantee a connection at all times.
For this reason the SMSB242/SMSB482 cannot be used with emergency call systems.
Installation
For the safety of the user and in order to ensure the fault-free operation of the SMSB242/SMSB482, the device may only be in-
stalled by qualified experts. The specifications listed below must also be observed.
Environmental conditions
The SMSB242/SMSB482 (the device and all connected cables) must be installed in locations which satisfy the following condi-
tions:
No dust, no moisture, no high temperatures
No direct solar radiation
No devices which radiate heat
No objects which generate a strong electromagnetic field
No corrosive liquids or chemical substances
The SMSB242/SMSB482 was designed for operation at temperatures between and 45 °C (standard operating tempera-
ture).
Sudden changes in temperature and/or humidity must be avoided.
Protection class
The following protection class must be ensured with the installation of theSMSB242/SMSB482:
IP40: Minimum protection class which must always be ensured
IP54: Protection class which only has to be ensured for use outdoors
Supply
The following specifications must be observed:
Do not use any cables with a length greater than 2m
The external power supply unit must conform to European standard EN60950 (Electrical safety)
Ensure the correct polarity (+/-)
Digital and analogue inputs
The following specifications must be observed:
Only zero-potential contacts may be connected. If analogue sensors are connected, they must be suitable for this purpose
and certified.
Do not use any cables with a length greater than 2m.
Do not connect analogue inputs to sources of voltage.
Do not install cables near electromagnetic fields; otherwise use shielded cable.
Ensure the correct polarity for the analogue inputs.
Relay outputs
Observe the technical data in the corresponding chapter.
Do not use any cables with a length greater than 2m.
