M-bus supply converter MBRS-128

Main m-bus convertor MBRS-128

MBRS-128 is a microprocessor two-way full-duplex M-bus to RS-232С converter, with ability to supply maximum of 128 M-bus slave devices. It is intended for use in housing constructions and industrial buildings mainly for distance reading of tax instruments or different types of sensors. It is protected for short circuit in the output. Mounting of the unit is done on a standard М36 DIN-rail.

user manual

Main technical parameters of MBRS-128

nominal output voltage (mark) 35.5 VDC ± 1 V
maximum count of slave devices 128
maximal output current 225 ± 5mA
output voltage in condition ‘0’ (space) 22 ÷ 25 VDC
power supply 150-250 VAC (200-350 VDC)
power consumption < 11.5 W
maximum baud rate 4800bps
humidity 40 ÷ 90 %
work temperature from -20° C to +55° C
storage temperature from -50° C to +90° C
longest distance in the network with one MBRS 600m
display 7 indicating leds (On, protection, output voltage, over range, collision, receiving, transmitting)
dimensions (HxWxD), mm 105/107/74 mm
protection class IP30
weight 340 g

Operation of MBRS-128

Mounting and electrical wiring