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Help CenterUT-1304, Serial Port Hub, 4-port RS-485 / 422 Terminal Server, Photoelectric Isolation
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Certification:CE,FCC,ROHS
UT-1304, Serial Port Hub, 4-port RS-485 / 422 terminal server, Photoelectric Isolation, DC9-48V
Applications:
Widely used at express way toll system, road monitoring system with excellent performance and competitive price.
Specifications:
|
Standards |
Compliant with RS-485/RS-422 standards of EIA/TIA |
|
Electric interface |
RS-485/RS-422 in binding post |
|
Transmission media |
twisted-pair cable or shielded cable |
|
Working mode |
asynchronous half-duplex or full duplex |
|
Signal indication |
signal indicators including power (PWR), send (TXD), receive (RXD) and failure (E1-E4) |
|
Isolation voltage |
2,500 VRMS 500VDC non-stop and DC/DC isolation module |
|
Baud rate |
300-115.2KBPS |
|
Working voltage |
DC9-48V; 150mA |
|
Protection grade |
each RS-485/RS-422 line with 3000A, 8/20u s waveform for lightning strike protection |
|
Transmission distance |
0-1.2km(115,200-300BPS) |
|
Dimension |
210mm x 30mm x 3mm |
|
Working environment |
-40℃ to 85℃, relative humidity 5% to 95% |
Description:
With RISC design, UT-1304 is a RS-485/RS-422 hub, suit for large RS-485/RS-422 system under complex environment. Baud rate: up to 115.2KBPS. With delicate built-in protection, 3,000A surging protection; isolation voltage:2,500V; well protected from lightening strike and ESD. Outdoor usage.
Under RS-485/RS-422 mode, auto-adapt data stream. Max distance: 1.2km. RS-485/RS-422 star topology bus connection is provided by UT-1304 RS-485/RS-422 HUB. Photoelectric isolation of 2,500V is provided. Re-construction of RS-485/RS-422 bus structure and network range splitting can be easily realized to improve communication reliability. In the case of lightning strike or equipment failure, the affected range shall be isolated to make sure the normal function of other ranges. This feature can increase greatly the reliability of existing RS-485/RS-422 with achievement of shorter time for network maintenance. Proper application of UT-1304 RS-485/RS-422 HUB can help you design a high stability RS-485/RS-422 system.
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