Page 8
How to Use the Relay Outputs
The 4G Auto Dialler Plus has two relay outputs which can be used to switch on external
devices such as lighting, sirens etc…
Relay 1
is independent and can be activated by SMS message
Relay 2
is independent and can be activated by SMS message
Activation by SMS Text Message
By texting the unit you can turn relay 1 and 2 ON or OFF individually. Below, are examples on
how to do this.
#
REL1
=
ON
#
This will Latch on relay 1
#
REL1
=
OFF
#
This will Latch off relay 1
#
REL2
=
ON
#
This will Latch on relay 2
#
REL2
=
OFF
#
This will Latch off relay 2
After each operation the unit will reply with the Relay Status
Pulsing the Relay by SMS Text Message
It is possible to pulse relay 1 & 2 for a period of 17 seconds. You will need to send the text
message as follows.
#
PUL
=
REL1
#
- This will pulse relay 1 for 17 seconds
#
PUL
=
REL2
#
- This will pulse relay 2 for 17 seconds
The unit will reply back with
REL1
or
REL2 PULSE
.
Automatic Relay Triggering
The relays can be set to trigger in synchronization with an input trigger (relay 2,check page 9)
or temperature trigger (relay 1, check page 11)
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- 01273462380 - [email protected]
