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1. Main Features
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M-Bus Level Converter for 250 devices
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Transparent level converting of several interfaces to M-Bus
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Ethernet 10/100BaseT and USB 2.0 with driver for virtual serial port
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1 x RS232C with terminals (TXD, RXD, GND) and 1 x RS232C with DSUB socket
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2-wire RS485 interface (not addressable)
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M-Bus Booster with Repeater function for extension of M-Bus networks
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Galvanic isolation of all interfaces from M-Bus
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Intelligent access control of the interfaces by a microcontroller
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Internal power supply with wide range input for worldwide use
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Housing for wall mounting (optional rail mounting kit)
2. Installation
2.1 Mounting
The case of the PW250 can be attached to a wall with four screws. The drill pattern is rectangular (180 mm
horizontal, 180 mm vertical). The drillings shall have a diameter of 5 mm. You can alternatively fix a special
rail holder to the case to enable the mounting on a rail of the type TS 35 (Accessory: GHZ TSH35-2). The
case can be secure closed with the optional cylinder lock (accessory: GHZ Lock).
PW250 · User Manual Version 1.1 – 11 / 2019
Holes Ø = 5mm
180 mm
180 mm
PW250
3
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