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Help CenterUT-509, RS-485 Hub, Rail-mounted, Binding Post, Photoelectric Isolation, Serial Port Hub
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Certification:CE,FCC,ROHS
UT-509, RS-485 Hub, Rail-mounted, Binding Post, Photoelectric Isolation, Serial Port Hub
Applications:
RS-485 is widely used in thruway toll system, road supervision system and electric power acquisition system as a high-performance and economical data interface converter.
Electric interface and its definition:
RS-232C interface definition
|
10-bit wiring terminal |
Definition |
Signal description |
|
1 |
GND |
Ground |
|
2 |
GND |
Ground |
|
3 |
GND |
Ground |
|
4 |
485- |
RS-485 Negative signal input |
|
5 |
485+ |
RS-485 Positive signal input |
|
6 |
GND |
Ground |
|
7 |
RXD |
RS-232 Signal receive |
|
8 |
TXD |
RS-232 Signal transmit |
|
9 |
VCC |
Power input DC40V |
|
10 |
GND |
Power Ground |
RS-485 interface definition
|
10-bit wiring terminal |
Definition |
Signal description |
|
1 |
T/R1+ |
RS-485 signal output + |
|
2 |
T/R1- |
RS-485 signal output - |
|
3 |
T/R2+ |
RS-485 signal output + |
|
4 |
T/R2- |
RS-485 signal output - |
|
5 |
T/R3+ |
RS-485 signal output + |
|
6 |
T/R3- |
RS-485 signal output - |
|
7 |
T/R4+ |
RS-485 signal output + |
|
8 |
T/R4- |
RS-485 signal output - |
|
9 |
GND |
Isolation ground |
|
10 |
GND |
Isolation ground |
Description:
UT-5204 is a RS-485 bus-division hub designed for RS-485 system used in complicated electromagnetic environments. It supports data communication rate up to 115.2KBPS. Photoelectric isolation technique is introduced to the RS-485 interface to prevent converter and device from lightning and surge voltage for ensuring the safe and reliable data communication. The built-in photoelectric isolator (an isolation voltage as high as 2.5KVrms) and 600W surge suppressor can effectively suppress lightning and ESD and the grounding interference with each RS-485 line. It uses external switching power supply for safety and reliability and is ideal for outdoor engineering applications. The built-in discrimination circuit can automatically sense the direction of data flow and switch the enable control circuit to ensure the automatic switch of transmit and receive in RS-485 mode.
Short-circuit and open-circuit protection are provided for each port. Users can improve the RS-485 bus structure and divide bus segments conveniently for improved com
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