Optima ALARMS UPLINK
1 set of 4-position screw terminals (3.5 mm)
Sending status notifications and alarms via satellite can be accomplished by hooking up the satellite modem to the MODBUS/RS-485 port of the RIO xR3.
Optima recommends installing a zener barrier or surge protector wherever the wiring leaves the shelter for added safety.
The examples below depict how to power the satellite modem from the built-in power supply, or an external source.
Using the built-in source has the added advantage that the power output is backed up by the built-in standby battery.
This allows sending a ‘last gasp’ message before everything shuts down in case of prolonged power outages.
Satellite modem and MODBUS devices can be mixed and matched on the same bus.
Follow these simple recommendations when mounting the modem:
1 MODBUS (A/+, B/-)
1 DC Power (PWR, RTN)
1 x 4 position
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