SW4485I

4-port RS485 HUB with 2000V optoisolation for RS-485 system in complicated electromagnetic environment.

It supports a transmission rate up to 115.2KBPS, and adopts two-way transparent transmission, which allows one RS-485 bus or one RS-232 bus to be divided into 4 RS-485 buses, or any divided RS-485 signal to be transparently transmitted to host computer RS-485 or RS-232 hub. Each RS-485 port of slave computer is provided with reverse connection alarm and protection function, with which the reliability of existing RS-485 network is greatly improved, effectively reducing the network maintenance time.

To ensure the security and reliability of data communication, the RS-485 ports are provided with 2KVAC isolation protection, level-4 electrostatic protection and level-2 radiated susceptibility, effectively preventing surge current, common ground and radiated interference, making the hub safe and reliable and suitable for outdoor application.

SW4485I-P(12/48VDC) also comes with RS-485 bus star connection. Users can easily improve RS-485 bus structure and divide the network segment. Proper utilization of SW4485I-P(12/48VDC) can help design a unique and reliable RS-485 system. SW4485I-P(12/48VDC) adopts EMC protection and supports DIN-rail installation, allowing it to be used reliably in severe environment at a temperature of -40°C to 85°C.

Features:

• Support two host computer RS-232 and RS-485 ports and four slave computer RS-485 ports
• Support transmission rate 300~115200bps
• Support multiple SW4485I-P(12/48VDC) cascade connection as many as 256-way RS-485 bus
• Each slave computer port can connect 32 standard RS-485 devices (nodes)
• Special automatic reverse connection alarm
• Zero-delay automatic send/receive conversion function
• Port is provided with 2KVAC isolation protection, Level-4 electrostatic protection and level-2 radiated susceptibility
• Industrial design, IP40 protection
• DIN-rail mount
• Operating temperature -40°C to 85°C

Specification:

Communication Parameters

• Interface Protocol: compliant with EIARS-232/48 5
• Serial port number: 1 host computer RS-232 port, 1 host computer RS-485 port, 4 slave computer RS-485 ports
• RS-232 signal: TxD, RxD, GND
• RS-485 signal: D+, D-, GND
• Parity bit: None, Even, Odd, Space, Mark
• Data bit: 5bit, 6bit, 7bit, 8bit
• Stop bit: 1bit, 1.5bit, 2bit
• Baud rate: 300bps~115200bps
• Direction control: RS-485 adopts ADDC technology
• Transmission media: CAT.5E shielded twisted pair or dedicated line for RS-485
• Load capacity: support 32 nodes (customizable to 128 nodes) polling
• Port protection: 2KVAC isolation protection, level-4 electrostatic protection, level-2 radiated susceptibility
• Transmission distance: RS-485 1200m, RS-232 is less than 15m

Connector

• Host computer RS-232/485: 5PIN terminal blocks
• Slave computer RS-485: 10PIN terminal blocks

Indicators

• PWR: power indicator
• TXD: data sending status indicator
• RXD: data receiving status indicator
• E1~E4: slave computer RS-485 port status indicator

Power

• Input voltage: 12-48VDC
• No-load power: 0.696W@24VDC
• Full-load power: 0.696W@24VDC

Mechanical structure

• Shell: IP40 protection, high-strength metal shell
• Installation: DIN-rail installation
• Weight: 384.8g
• Dimension (LxWxH): 110mm x 95mm x 35mm

Environmental

• Working temperature: -40°C to 85°C
• Storage temperature: -40°C to 85°C
• Humidity: 5%~95% (no condensation)

Industrial standards

• EMI: FCC Part 15, CISPR (EN55022) class A
• EMS:
• EN61000-4-2 (ESD), Level 4
• EN61000-4-3 (RS), Level 2
• Shock: IEC 60068-2-27
• Free fall: IEC 60068-2-32
• Vibration test: IEC 60068-2-6

Manufacturer's warranty 3 years

Certificates: CE, FCC, RoHS, UL508 (pending)

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