SRS-U4
The SRS-U4 module is designed to connect a USB host to slave devices equipped with RS-485 interface. The PC with special software can be used as a host. The SRS-U4 unit guarantees full galvanic isolation between USB and RS-485 circuits. The converter can work with any devices equipped with RS-485 interface and contains integrated circuit which supports USB 1.1 and USB 2.0 standards. The main purpose is connection of PC host computer with industrial data acquisition and visualisation systems based on RS-485 interface.
The SRS-U4 can be also manufactured with DIN mounting adaptor.
Parameters
| Current consumption | 150 mA max. |
|---|---|
| Humidity | 5% up to 90% without condensation |
| Power supply | from USB interface (4,4V ÷ 5,25V DC) |
| USB interface port | 1 x USB B type, compatible with USB 1.1 / 2.0 standard |
| Breakdown voltage | between RS-485 line and USB interface |
| Transmission speed | 300 bit/sek. – 115200 bit/sek. |
| Storage temperature | -10°C ÷ +70°C or -20°C ÷ +70°C (with option 08) |
| Operating temperature | 0°C ÷ +50°C (standard), -20°C ÷ +50°C (option) |
| Case dimensions | 50 x 36 x 20 mm; 66 x 36 x 20 mm (with protruding socket and plug); 50 x 36 x 39 mm (DIN rail mounting version); 66 x 36 x 39 mm (DIN rail mounting version with protruding socket and plug) |
| Weight | 22,1 g (standard) 26,6 g (DIN rail mounting version) |
| Cable | USB type A – mini B cable, ca. 1,5 – 2 m (included) |
