Programming Instructions

RS485 communication bus connections Page 12/40
Communication programming instructions
8) Polarization and termination of the RS485 bus
The bus can be polarized from your device if
necessary. To do this you must switch the two micro-
switches (Pol. RS+ (A) and Pol. RS-(B)) of the electronic
card in ON position.
If your device is the last on the line on the RS485
bus you can switch the Term. RS switch on ON to activate
line termination.
For security reasons, it’s imperative to turn OFF the power of your device before opening the
case to switch the micro-switches!
9) Connection of the internal GSM Modem
Install the GSM modem socket in the space provided. Position the antenna in a cable gland and
connect it to the electronic card using the cable supplied. Position the SIM card in the intended
location.
Cell phone contrat must be M2M (machine to machine) with the minimum of 5MB/month.
Sim card PIN must be disabled.
RS + (A)
RS – (B)
Term RS
ON
OFF
GMS MODEM Socket
SIM card
Antenna cable
Empty front card
Front card with GSM Modem socket