QBUS-250E Ethernet- USB-RS232

QBUS Series MBus Converters
- All converters can be read from a single point with the Repeater feature
- Ethernet, USB, RS232 interfaces
- Metal casing, resistant to impact and environmental conditions
- Short circuit and high current protection
- Suitable for direct wall mounting or panel use
- Produced in accordance with TS EN 1434-3 and TS EN 13757-2 standards
- Supports all M-Bus compatible meters
- 32 Bit ARM based processor
- Elektronic Noise filtering algorithm
- USB 2.0 VCP interface
- Wide supply voltage range of 85-265V AC
- 36V fixed M-BUS output voltage
- 500mA max. output current
- Max. Supports 250 counters
Model and Interfaces
- QBUS-250 USB-RS232
- QBUS-250E Ethernet- USB-RS232
- QBUS-250R Repeater- USB-RS232
- QBUS-250MO Modbus- USB-RS232
The QBUS-250 M-BUS converter allows the meters to be read up to 250 counters. It has short circuit protection, high voltage protection and ESD protection on communication lines. It has USB, RS–232 and REPEATER communication interface.
A computer, GSM modem or other smart units are required to send data over the device and to evaluate the data coming from the meters. Therefore, there is an RS-232 interface on the QBUS-250. TX, RX and GND terminals are connected via 3.50 mm screw terminal. The RS-232 interface is set at a communication rate of 2400 baud. It is advised that the total cable length should not exceed 1.5m.
It is used to connect the device directly to the computer. USB-B interface can be used. The communication speed is supported as USB 2.0. The device automatically creates a COM Port on the computer. Linux/Android/Windows 7 and above operating systems are supported. With MStudio or another M-BUS reading program, a connection is established from the computer to the QBUS-250 and from there to the counters.
The QBUS-250 can also be used as a repeater to expand the installed M-Bus network. M+ and M- terminals of other M-Bus device are connected to 5.08mm gray terminal. Polarity does not matter in this connection. It is recommended that the total cable distance not exceed 1000m. Repeater connection can be made in cascade or parallel.
QBUS-250 can be mounted on rail in accordance with DIN EN 50022 standard and is also suitable for desktop use.
Driver Link;
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers