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Master ModBUS RTU Wireless

The KET-RMB-211 can handle up to 32 ModBUS RTU slave devices connected to its RS485 port. The device can be programmed to read a set of registers and send them to the Gateway.

The integrated Repeater functionality reduces the number of required nodes and increases network reliability.

Is equipped with an extended radio range that allows to reach over 1000 m in free air.

The standard antenna connector supports 90° joint antennas or cabled ones for placement outside the electrical panel.

Maximum flexibility of power supply, direct from the mains or low voltage, both DC and AC.

Format suitable for mounting in electrical panel on DIN-rail.

GENERAL SPECIFICATIONS

Protection Range	IP50
Operative Temperature	-20 ÷ +60 °C

CASE

Dimensions	53,5 x 110 x 61 mm (W x H x D)
Mounting	DIN rail or Wall mounting with supplied supports
Required DIN modules	3 DIN modules
Electric Board Type	Industrial or switchboard
Material	Blend PC/ABS sel extinguishing UL94-VO

POWER SUPPLY

Supply Voltage	12 ÷ 24 VDC, 12 ÷ 20 VAC; 230 VAC with integrated power supply
Consumption	< 1.5 W @ 12 ÷ 20 VAC / < 1.5 W @ 12 ÷ 24 VDC / < 1.5 W @ 230 VAC
Connectors types	Screw terminal

RS485 INTERFACE

Supported Protocols	Master ModBUS RTU with 32 slave
Connectors types	Screw terminal

RADIO MODULE

Supported Protocols	X-Monitor Protocol (X-MP) / IEEE 802.15.4 / ZigBee™ Pro 2.0
Radio Frequency	2.4 GHz ISM Band
Output Power	+3 ÷ +20 dBm
Sensitivity	-104 dBm
Antenna Type	RPSMA connector, 90° antenna supplied
Max Distance (Free Air)	Over 1000 m