RMA485 Autonomous radio module RMA485

The RMA485 radio module is designed to provide information exchange with devices based on the IEEE 802.15.4 wireless interface standard and serves as a repeater between the RS-485 wired interface and the wireless interface, including in autonomous mode. It is intended for use as part of the Personnel, Transport Positioning and Mining Equipment Monitoring System (SPPTMGShO, «СППТМГШО»).

Advantages:

Mine intrinsically safe design ensuring safe operation in underground workings of mines and ore mines and their surface structures, including areas hazardous due to gas and dust.
Stationary use in workings and/or mobile use on mining equipment and transport.
Autonomous operation for at least 48 hours (with a fully charged battery).
Remote diagnostics and control via RS-485 interface (Modbus).

General characteristics:

Explosion protection marking	RO Ex ia I Ma X
Operating temperature, °C	from minus 20 to plus 40
Ingress protection rating	IP67
Protection class against electric shock	III
Operating supply voltage range, V	10–30
Design features	permanently connected cable
Wireless communication standard	IEEE 802.15.4
Wired communication standard	RS-485
Power consumption (during charging), W, max.	0.2 (1)
Battery capacity, mAh	1500
Operating time in autonomous mode (from fully charged battery), h, min.	48
Overall dimensions (without cable), mm, max.	160 × 44 × 40
Weight, kg	0.5

Application area

As part of the equipment (miners’ cap lamps) in underground workings of mines and ore mines and their surface structures, including areas hazardous due to gas and dust, in accordance with the explosion-protection marking, operating conditions, and the requirements of industry Safety Rules.