Industrial Serial Repeater
MDW-45

The Industrial Serial Converter MDW-45 is a simple serial converter allowing RS-232 and RS-422/RS-485 systems to be connected. DIP switches are used for all configuration options which makes the unit simple to install.

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The Industrial Serial Converter MDW-45 is a simple serial converter allowing RS-232 and RS-422/RS-485 systems to be connected. DIP switches are used for all configuration options which makes the unit simple to install.

The MDW-45 is designed for use in heavy duty industrial applications. The wide power range, galvanic isolation, transient protection and the design of the termination and fail safe guarantees communication in the worst environments.

Only industrial grade components are used which gives the MDW-45 an MTBF of 1,000,000 hours and ensures a long service life. A wide operating temperature range of –40 to +70°C (–40 to +158°F) is achieved using no moving parts.

The MDW-45 has been tested both by Westermo and external test houses to meet many EMC, isolation, vibration and shock standards, all to the highest levels suitable for heavy industrial environments and rail trackside applications.

The configurable design of the converter makes the MDW-45 suitable for a variety of applications with various speed and data bit options. Normally RS-485 data direction is controlled by the RS-232 handshaking lines however the MDW-45 also features an automatic turning time function allowing the unit to operate in any application.

• Power
Operating voltage LV : 9.6 to 57.6 VDC
HV : 85.5 to 264 VAC or 88 to 300 VDC
Rated current LV : 95 mA @ 12 VDC or 35 mA @ 48 VDC
HV : 21 mA @ 95 VAC or 10 mA ti 110 VDC
• Interfaces
RS-422/485
1 x 4-position detachable screw terminal, 300 bit/s to 115.2 kbit/s
RS-232
1 x 9-pin D-sub, 1200 bit/s to 115.2 kbit/s
• Temperature
Operating –40 to +70°C (–40 to +158°F)
Storage and transport –40 to +70°C (–40 to +158°F)
• EMC specification
EN 55024 Immunity IT equipment
EN 61000-6-2 Immunity industrial environments
EN 61000-6-3 Emssion residental environments
FCC Part 15 Class B
EN 50121-4 Railway signalling and telecommunications apparatus
IEC 62236-4 Railway signalling and telecommunications apparatus
• Safety
Safety EN 60950, IT equipment
• Enclosure
Dimension (W x H x D) 34 x 123 x 121 mm (1.33 x 4.84 x 4.76
Weight 0.19 kg
Degree of protection IP21

 

• PowerOperating voltage

LV : 9.6 to 57.6 VDC
HV : 85.5 to 264 VAC or 88 to 300 VDC

Rated current

LV : 95 mA @ 12 VDC or 35 mA @ 48 VDC
HV : 21 mA @ 95 VAC or 10 mA ti 110 VDC

• InterfacesRS-422/485

1 x 4-position detachable screw terminal, 300 bit/s to 115.2 kbit/s

RS-232

1 x 9-pin D-sub, 1200 bit/s to 115.2 kbit/s

• TemperatureOperating–40 to +70°C (–40 to +158°F)Storage and transport–40 to +70°C (–40 to +158°F)Maximum surface temperature

135ºC (275ºF) (temperature class T4)

• EMC specificationEN 55024Immunity IT equipmentEN 61000-6-2Immunity industrial environmentsEN 61000-6-3Emssion residental environmentsFCC Part 15Class BEN 50121-4Railway signalling and telecommunications apparatusIEC 62236-4Railway signalling and telecommunications apparatus• SafetySafetyEN 60950, IT equipmentATEX

EN 60079-0 and EN 60079-15

• EnclosureDimension (W x H x D)34 x 123 x 121 mm (1.33 x 4.84 x 4.76Weight0.19 kgDegree of protectionIP21

 

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