1.Introduction
It 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.
2.feature
1. Interface: Compatible with RS-232 and RS-485 standards of EIA/TIA |
2. Electric connection: 10-bit wiring terminal for both RS-232 and RS-485 interface |
3. Transmission media: twisted-pair cable or shielded cable |
4. Operation mode: Asynchronous half-duplex |
5. Power supply: 9-30VDC/350mA |
6. Signal indication: 7 signal indicators - Power (PWR), Transmission (TD), Receive (RD), Error (E1-E4) |
7. Isolation voltage: continuous 2.5KVrms /500VDC isolation DC/DC module |
8. Data rate: 115.2K-300BPS. |
9. Protection class: +/-15KV ESD protection for RS-232 interface; 600W lightning strike and surge protection for each RS-485 line. |
10. Communication distance: 0-5 KM (115200bps-300bps) |
11. Dimension: 120mm 80mm 25mm |
12. Working environment: -40 to 85 relative £¬ humidity of 5% to 95% |
3.specific
1.Interface Protocol EIA RS-2332/485
2.Interface Number 1x RS-232,1xRS-485, 4x RS-485,lower position controller interfaces.
3.RS-232 signal TxD, RxD, GND
RS-485 signal D+, D-, GND
4. Check None, Even, Odd, Space, Mark
5.Data Bit 5bit, 6bit, 7bit, 8bit
6.Stop Bit 1bit, 1.5bit, 2bit
7.Baud Rate 300bps~115200bps
8.Direction Control RS-485 adopts data flow to automatic control technology
9.Transmission Media twisted-pair shielded cable or UTP 485 dedicated line
10.Load Capacity RS-485: 32-node ( can be customized 128 nodes)
11. Port Protection 2KVAC isolation protection
3-level of ESD protection
2-level of electrostatic radiation protection
12.Transmission Distance RS-485:1200m, RS-232 : no more than 5m
Introducing the Active RS485 Hub 4 Port Photoelectric Isolator Hub, the ultimate solution for seamless and reliable data transmission in your industrial network. Designed with utmost precision and cutting-edge technology, this hub ensures efficient communication between RS485 devices while providing superior photoelectric isolation.