4-port USB to RS-485/422 Hub with Photoelectric Isolation

Model Number: ESUT-861 Key Specifications/Special Features: USB 2.0, compatible ring to USB1.1, 1.0 and EIA RS-485 andRS-422 standardUSB signals: VCC, DATA+, DATA-, GND, FGRS-485 signals/R+, T/R-, GNDRS-422 signals: T/R+, T/R-, RXD+, RXD-, GNDOperating mode: asynchronous, P2P or point-to-multipoint mode,2-wire half-duplex, 4-wire full-duplexAutomatic data flow control: automatically adapt and controldata flowBaud rate: 300-128000bps, automatically detecting the datarate

Load capacity: point-to-multipoint mode, maximum = 128RS-422/485 devices are supported

Communication distance: 5km for RS-485/422 (128000-9600bps) and<5m for USB

Interface protection: 600W lightning strike and surgeprotection for each port, ±15KV ESD protection

Isolation degree: 2500Vrms isolation voltage for each port,500DC continuous specialized DC/DC module

Isolation type: master/slave, slave/slave

Interface connection: B type female at USB side and DB9 male atRS-485/422 side

Signal indication: 9 signal indicator lights, power (PWR),transmit (TXD), receive (RXD)

Transmission medium: STP or UTP

Baud rate:

• 128000bps to 300M
• 38400bps to 2.4KM
• 9600bps to 5KM

Dimensions: 210 x 130 x 32mm

Environmental parameters: temperature of -25°C to 70°C,relative humidity of 5% to 95%

Supports Windows 98/2000/XP/7, Linux