(English) IT-SC4485I-PSW

(English) IT-SC4485I-PSW

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IT-SC4485I-PSW (12/48VDC) is RS-485 HUB is designed 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. IT-SC4485I-PSW (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 IT-SC4485I-PSW (12/48VDC) can help design a unique and reliable RS-485 system.  IT-SC4485I-PSW (12/48VDC) adopts EMC protection and supports DIN-rail installation, allowing it to be used reliably in severe environment at a temperature of -40℃~75℃.



Ci spiace, ma questo articolo è disponibile soltanto in English. Per ragioni di convenienza del visitatore, il contenuto è mostrato sotto nella lingua alternativa. Puoi cliccare sul link per cambiare la lingua attiva.

    1. Support two host computer RS-232 and RS-485 ports and four slave computer RS-485 ports
    2. Support transmission rate 300~115200bps
    3. Support multiple IT-SC4485I-PSW (12/48VDC) cascade connection as many as 256-way RS-485 bus
    4. Each slave computer port can connect 32 standard RS-485 devices (nodes)
    5. Special automatic reverse connection alarm
    6. Zero-delay automatic send/receive conversion function
    7. Port is provided with 2KVAC isolation protection,Level-4 electrostatic protection and level-2 radiated susceptibility
    1. Industrial design, IP40 protection
    2. Support DIN-rail installation
    3. Working temperature -40~75℃




Communication Parameters

Interface Protocol: compliant with EIARS-232/485

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


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

Slave computer RS-485: 10PIN terminal blocks


PWR: Power indicator

TXD: Host computer serial port data sending status indicator

RXD: Host computer serial port data receiving status indicator

1~4: Slave computer RS-485 port status indicator


Input voltage: 12-48VDC

Load power: 0.7W@24VDC

Mechanical structure

Shell: IP40 protection, high-strength metal shell

Installation: DIN-rail installation

Weight: 384.8g

Dimension (L*W*H): 110mm*95mm*35mm

Working environment

Working temperature: -40~75℃

Storage temperature: -40~85℃

Humidity: 5%~95% (no condensation)

Industry standard

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

CE, FCC, RoHS, UL508 (Pending)
3 years
Packing List

  1. IT-SC4485I-PSW (12~48VDC) (plus terminal block) ×1
  2. User manual ⅹ 1
  3. Certificate of quality ⅹ 1
  4. Warranty card ⅹ 1

Manuale Prodotto

Datasheet Prodotto

Cristian is a brilliant intelligent and great proactivity person and an effective communicator and visionary. He has built a strong (and deserved) reputation as someone with vision, diligence and honor. Cristian is not a simple engineer but he is a real Scientist. His knowledge is not restricted to the area it covers, but its impressive passion for all the technical topics led him to acquire great skills even in areas far from his original studies. Cristian is able to address and solve complex technical problems with excellent results. He is a valuable writer with great scientific background formed with more that 15 years of active research on experimental Nuclear Physics performed in the most famous international research laboratories such as CERN, ESRN, INF. He write about HI-Tech solutions topics and advanced research study applied to industry. He have more than 150 scientific & technical publications. He is also a technical and famous writer in Italy due to his interviews released on the most famous Industrial Italian magazine.

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