UTEK Industrial RS-485 RS-422 to RS485 RS422 Hub 4 Ports with Optoelectronic Isolation Half Duplex with Lightning Surge Protection DC/DC Isolated Module UT-1304

UT-1304 is a RS-485/422 Hub special designed for RS485/422 system under complicated electromagnetic field. With built-in micro CPU(non-stop running), the transmission rate can be up to 115.2KBPS. To ensure the safety and reliability of the communication, it adopts optoelectronic isolation technology on RS485/422 ports; this provides surge & lightning protection with the converter and device. The internal optoelectronic isolator and 3, 000A lightning & surge protection circuit provide with 2, 500V isolated voltage to prevent it from lightning and ESD. At the same time, it prevents from common-grounded interference.

This hub adopts external power; it is quite safe & convenient for outdoor application.
UT-1304 is widely used in highway toll system, traffic monitoring system and power system.
Under RS-485/422 working mode, UT-1304 will detect the data flow direction by distinguishing the circuit automatically; at the same time, it will control the circuit by automatic switching, this solves RS-485/422 data receiving and transmitting delay problem. The transmission distance of RS-485/422 port is up to 1, 200m.
UT-1304 RS-485/422 HUB provides with star topology RS-485/422 connection, each port supports short circuit, open-circuit protection. Users can easily change RS-485/422 BUS structure, and cut the network segment to improve the communication reliability. When lightning or the equipment breaks down, the network segment with problem will be isolated, to make sure the other network segment works regularly. This performance enhances the reliability of RS-485/422 network, and shortens the network maintenance time. Using UT-1304 RS-485/422 HUB in a right way will help you create a unique and reliable RS-485/422 system.
Standards: RS-485/422 EIA/TIA
Interface: RS-485/422 terminal block
Transmission media: twisted-pair or shielded wire
Working mode: asynchronous, half-duplex or full-duplex
LEDs for indicating PWR, TXD, RXD, and E1-E4 activity
Isolation: 2, 500VRMS 500VDC continuous isolated voltage, DC/DC isolated module
Baud rate: 300bps- 115.2K bps
Operating voltage: DC9-48V
Operating current: 150mA
Protection: RS-485/422 each wire 8/20us 3, 000A lightning surge protection
Transmission distance: 0-1, 200m (115, 200-300bps)
Dimension: 210mmx130mmx33mm
Operating temperature: -40 to 85 c
Relative humidity: 5% to 95%