GRL 4G - LTE GSM Voice Relay

Basic features:

• Replaceable backup battery
• Simple installation and setup (basically just save one phone number on the SIM)
• After changing the status of the input, sending SMS to up to 7 numbers (PORTOPN1-7 and PORTCLS1-7) stored on the SIM card
• The alarm elevator system can call pre-programmed numbers and provide up-to-date status information using audio voice announcements
• Separate SMS for each state of each input (i.e. 8 different SMS)
• It is possible to set the states of the relay after switching on (relay opened, closed, remember the last state before switching off)
• The possibility of remote detection of the states of both relays, all inputs, temperature, and power supply of the device
• The device can only be controlled and programmed from the numbers stored on the SIM in the device
• Work without a PIN code / with a PIN code - automatic generation of a random PIN for the SIM card

Programming the GRL 4G device parameters via SMS:

• For security reasons, GRL 4G device parameters can only be set from the numbers stored on the SIM under the names ADMIN1 to ADMIN9
• SMS are always WRITTEN IN ALL CAPITAL LETTERS
• Individual SMS elements are always separated by spaces (words). The first word is always a command. The next word(s) are then one or more parameters