JVA SMS Gateway User Manual
3
Overview
LED Indicators
KPB
Blink when the unit is communicating with Z series devices
GSM
Blinks when the processor is communicating with the GSM module
ERROR
Flashes when there is a problem with the SIM (faulty or PIN locked)
Inputs
Two dry contact inputs are provided. If the unit sees a short circuit between the input terminals it will
register the input as being ‘On’.
Just like the inputs on all JVA Z series devices, the input can also be triggered by PLC or alarm panels
by connecting the right-hand terminal to 0V.
Outputs
Two SPDT relays are available as general purpose outputs. These relays can switch DC voltage up to
30V and 8A. The outputs can be switched on or off by SMS, and are ideal for connection to external
lights, pumps, electric motors, gate openers, or interfacing to an existing alarm or control system.
