The PW250 is a transparent level converter for 250 M-Bus slaves. With two RS232C interfaces, one RS485, one USB, and a network interface, it offers a suitable connector for almost every purpose. A special feature related to this large number of interfaces is their intelligent management, which allows multiple external controllers to be connected simultaneously and controls collision-free access. In addition to its function as an M-Bus level converter, the PW250 can also be used as a repeater to extend an M-Bus network of 250 meters or the wired network. The new comfort standard for M-Bus level converters is completed by the integrated flexible power supply (110 .. 250 V AC) and a wall-mountable and DIN rail housing.

Technical Features

• Operating voltage: 110 .. 240 V AC / 47 .. 63 Hz
• Power consumption: max. 100 W
• Temperature range: 0 .. 45 °C
• M-Bus voltage (no load): 42 V
• M-Bus standby current: max. 375 mA
• Bus impedance: approx. 8 $\Omega$
• Overcurrent threshold: 500 mA
• M-Bus baud rate: 300 .. 38400 Baud
• Galvanic isolation: all interfaces to M-Bus and, additionally, the repeater input to all interfaces
• Enclosure: light grey ABS plastic, protection class IP52, Dimensions (H x W x D): 229 mm x 204 mm x 76 mm
• LED status indicators: power, communication, M-Bus max load, M-Bus short circuit, M-Bus active
• Interfaces: Ethernet 10/100 MBit, USB-Host, USB-Device, RS232C, repeater (M-Bus IN)