(English) IT-SDS-308-T-8DI (RS-485)


8 Ports RS-485/422 to Ethernet Serial Server

IT-SDS-308-T-8DI (RS-485) is an high performance, industrial grade serial to Ethernet server, it can satisfy some kinds of customer requirements in consumption, temperature, volume and handle ability. It provides 8 ports RS-485/422(RS-485/422 connector: 5 bit terminal block) and 1 port 10/100Base-Tx Ethernet, can focus manage disperse serial device, master through network, easy, convenience. In application, can configure, upgrade through WEB.

Moreover, IT-SDS-308-T-8DI (RS-485) provide strong function configuration tools based in Windows platform, it can guide user configure the device step by step, all configurations are coming true by WEB or Telnet, support cross-gateway and cross-router, user can flexible configure IP address, server and client mode, data bag size etc.

IT-SDS-308-T-8DI (RS-485) adopts EMC protection design, can work in rugged environment.


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  • Support 10/100M Ethernet
  • Support 8 Ports RS-485/422
  • Support WEB and Telnet configuration
  • Support TCP, UDP, ARP, ICMP, DHCP and DNS protocol
  • Support TCP Server, TCP Client, TCP Auto, UDP and Real COM driver working mode
  • Support UDP multicast and UDP subnet mode
  • Support heartbeat time and time over disconnect function
  • Support cross-gateway and cross-router communication
  • Support virtual serial COM port access and Network interruption automatic recovery
  • Provide Windows configuration tools for easy to use, easy to bath install
  • Industrial grade design, IP30 protection grade
  • No fan, low consumption design
  • Working temperature: -40~85℃




Ethernet ports
Standard: 10Base-T, 100Base-TX
Protocol: Support TCP, UDP, APR, ICMP and DHCP
Signal: Rx+, Rx-, Tx+, Tx-
Speed: 10/100Mbps
Working: Full-duplex and half duplex
Working mode: Support TCP Server and Client
Transfer distance: 100m
Connector: RJ45

RS-485/422 ports
RS-485/422 port number: 8
RS-422 signal: T+(A), T-(B), R+(A), R-(B)
RS-485 signal: D+(A), D-(B)
Parity bit: None, Even, Odd, Space, Mark
Data bit: 5bit, 6bit, 7bit, 8bit
Stop bit: 1bit, 2bit
Band rate: 300bps~115200bps
Loading: support 32 nodes loop back
Transfer distance: 1200m
Connector: 4-bit terminal block
Protection: class 3 static, 1.5KVAC isolation
LED Indicators
Working statue indicator: RUN
Power (PWR)
Ethernet port connection statue (Link)
RS-485/422 port transmit data indicator: TX1~TX8
RS-485/422 port receive data indicator: RX1~RX8
Power requirements
Input voltage: 12VDC (9-48VDC)
No-load consumption: 1.81W@12VDC
Full-load consumption: 2.36W@12VDC
Environment limits
Working temperature: -40~85℃
Storage temperature: -40~85℃
Relative humidity: 5%~95%(non-condensing)
Shell: IP30 protection, metal shell
Installation: Wall mounting
Weight: 486g
Size (L×W×H): 160mm×95.5mm×28mm
EMS: EN 61000-4-2 (ESD) Level 3
Shock: IEC 60068-2-27
Free fall: IEC 60068-2-32
Vibration: IEC 60068-2-6
Warranty time: 5 years
CE, FCC, RoHS, UL508 (pending)
Ordering Informations

IT-SDS-308-T-8DI (RS-485)                8-ports RS-485/422 to Ethernet (10M/100M), DC9~48V, wall mounting

Packing List

1. IT-SDS-308-T-8DI (RS-485)×1
2. User manual ×1
3. Straight network cable ×1
4. Power adapter ×1
5. CD-ROM × 1
6. Warranty card ×1
7. Certificate of quality×1

Optional accessories

DIN-Rail Mounting Kit (35mm) ×1

Datasheet Prodotto

Manuale Famiglia Prodotti

Intellisystem Technologies