LAN ⇔ RS-422/485
Interface Converter


●Connects 10Base-T/100Base-TX by auto-detection.
●Supports multi protocols such as TCP/IP, UDP/IP, ARP, etc.
●Automatically controls RS-485 communications, which is available to use the flow control of XPort®.
●Able to control 128sets maximum in RS-485 multi-drop type.
●Can use in the workplace environments between -10 to 50 degree Celsius.
●Solid, card-case sized, and metal enclosure.
●Supports installation of 35mm DIN rail.
●Environment-friendly design. Use lead-free solder. Non-use of chromium screw etc.

SI-65: Japanese model (100V Input AC adapter)
SI-65-E: World wide model (Wide Input AC adapter )

Specifications (Interface Converter SI-65)
Conversion LAN <-> RS422/485
LAN Interface RJ-45 connector 10BASE-T/100BASE-TX, Ethernet IEEE802.3
Serial Interface RS-422/485, 6 pole terminal block (Press-to-screw pitch type), Fitness wire AWG24-14/2.5mm2
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, Serial login, SNMP
Sample software Transmit and receive program (with source code) for Windows®
Firmware Able to write on the FPGA or internal flash memory via serial communication.
LED display LAN connection, RS-485 signal status
Power Supply *4

AC adapter: AC100V+/- 15%, 50/60Hz

Terminal block: DC5 to 12V from 6pin
Power Consumption*5 4.9VA
Temperature Operating: -10 to 50 degree Celsius *6
Storage: -20 to 80 degree Celsius.
Humidity 10 to 95% RH (no condensation)
External Dimension (mm) 65(W) x 90(D) x 24 (H)
Weight (g) Approx. 200
Accessories AC adapter(VEN-650B), 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 CP2 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 Supplied either from.
*5 When using the attached AC adapter (AC100V).
*6 Operation temperature will be -10 to 40 degree Celsius when DC power voltage from Dsub connecter is more than 10V.