LAN ⇔ RS-422/485
Interface Converter (Insulated model)


●Insulation by photo coupler
●Supports multi protocols such as TCP/IP, UDP/IP, ARP, etc.
●Built-in wide AC input (between AC 85V and 264V)
●Connects 10Base-T/100Base-TX by auto-detection.
●Automatic RS-485 communication control in which the flow control of XPort® can be used.
●Up to 128 units can be connected by multi-drop system.
●Can be used in the environments between -20 and 60 degrees Celsius and adaptive to cold district.
●Environment-friendly design by using lead-free solder, without hexavalent chromium screw.
●Can be hung on the wall by screwing from upper side.(-L model)

SI-65FA: Standard model
SI-65FA-L: Wall-hanging model

Specifications (Interface Converter SI-65FA)
Conversion LAN <-> RS422/485
LAN Interface RJ-45 connector 10BASE-T/100BASE-TX, Ethernet IEEE802.3
Serial Interface RS-422/485, 5 pole terminal block (Press-to-screw pitch type), Fitness wire AWG24-14
Insulation Insulation between RS-422/485 and LAN, withstands AC 2000V
Serial signal SD, RD or SD/RD
Synchronous Method Asynchronous
Baud Rate (bps) 300/600/1200/2400/4800/9600/19200/38400/57600/115200/230400/
Data Frame Structure Data (7 or 8) + Parity (Even, Odd, None) + Stop (1 or 2)
RS-485 state watch Able to monitor non-communication status on RS-485*2
RS-485 auto driver Able to make the RS-485 driver active only when sending*3
Multi-drop connection Max. 128 sets
Initial setting
Web server, Telnet login
Sample software Projects for Microsoft Visual C++ 6.0
LED display LAN connection, RS-485 signal status
Power Supply*4 AC85-264V, 50/60Hz
Power Consumption 2.7W (When 240V)
Temperature Operating: -20 to 60 degree Celsius
Storage: -25 to 75 degree Celsius
Humidity 10 to 95% RH (no condensation)
External Dimension (mm) SI-65FA: 90(W) x 100(D) x 22 (H)mm
SI-65FA-L: 114(W) x 100(D) x 22 (H)mm
Weight (g) Approx. 280g
Accessories Utility CD-ROM, Instruction manual, Warranty
*1: To use at 460.8Kbps or 921.6Kbps, set the XPort as high performance mode. Please refer to the User's manual.
*2: Half duplex of RS-485 requires to send data while there is not data from other devices. SI-65 detects a state of no data transmission of other devices for the timer period specified by the switch, and notifies CP3 of the XPort of the state.
*3: Half duplex of RS-485 need to make the RS-485 driver active only sending data. The RS-485 driver IC will be instantly activated at the head of data, and automatically deactivated with the lapse of the timer period specified by the switch once the end of the data is reached.
*4: 7.62mm pitch, 3 pole terminal block, M3 screw