MR485

The device is dedicated to industrial solutions. It enables conversion of RS232 signal to RS485 or M-Bus Slave to RS485. Casing on TS35 rail, wide power supply range, galvanic isolation, and RS485 transmission line protections.

Technical data:

Supply voltage 9 ÷ 24 VDC

Peak voltage supply value 30V max

Protection against reverse polarity yes

Supply current consumption 0.5 A max (protection 0.75A)

Transient voltage suppressor TRANSIL 33V 600W/1ms

Power supply – RS232, M-Bus Slave 100 V AC/DC

Power supply – RS485 100 V AC/DC

RS485 – RS232, M-Bus Slave 100 V AC/DC

Insulation resistance:

Power supply – RS232, M-Bus IN, RS485 1000 V rms/60 sec

Transmission power indication:

PWR diode – power indication

Transmission reflected on RxD and TxD diodes: RS232 or M-Bus Slave

R- receive, T- transmit

RS232 connector output screw-type 3-pin or drawer-type BH10

Communication port:

RS485

1 – +A – Line A

2 – -B – Line B

3 – GND – Cable shield A, B line ESD protection -max peak pulse power Ppp = 330W- tp = 8/20μs

Transmission speed:

Transmission speed switch SW1

M-Bus Slave – RS485 38.4 kbps max

RS232 – RS485 115.0 kbps max

Dimensions width: 35 mm, height: 91 mm (without connectors), 110 mm (with connectors) depth: 65 mm

Weight 90 g

Operating temperature -20°C to 60°C

IP 20 casing protection rating