LAN⇔RS-422/RS-485 Conversion


Supports 10Base-T/100 Base-TX, Built-in Xport®
* Able to use in cold district up to E5°C.
This model is the sister model of SI-65, supporting
a wide range of temperature and power supply input.

SI-65A is an interface converter to connect factory automation equipment and analyzers, which only have the serial communication ports for RS-422/485, to LAN.

The built-in Lantronix Xport® on the LAN interface converts RS-422/RS-485 data into LAN protocol (TCP/IP). It also transfers LAN data, controlling RS-485 driver automatically. SI-65A supports a wide range of temperature (-25 to 75°C) and power supply input (DC5 to 30V) compared to SI-65. It has the robust metal body and supports 35mm DIN rail.Therefore, you can use it for factory automation without worry.

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


[ Accessories ]
AC Adapter : 1
Utility CD-ROM : 1
Instruction Manual : 1
Warranty : 1

Block Chart

Block Chart


<DIN Rail Installation
< Optional “Metal
Fitting for Wall” >


A Useful Tool for Multiple Operation
<Configuration tool (SILANIOinit)>

“SILANIOinit" is a configuration tool for LINEEYE products embedded WiPort-NR. It is useful and saves time to rewrite the WiPort-NR configuration file (Setup Record) .



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 30V from 6pin
Power Consumption*5 3.7VA
Temperature Operating: -25 to 75 degree Celsius *6
Storage: -25 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.


Description Name Model Remarks
DIN Plate DIN Plate SI-DIN70 A plate for installing 35mm DIN rail.
Magnet SI-MG70 Two magnets to attach the SI/LANIO-series on the wall. Screw two magnets on the bottom of device.
Wall bracket SI-WM1

Metal fitting to attach the device on the wall.

Screw the meal fitting board on the bottom of device.
ACアダプタ AC adapter VFN-650B

Input: AC100V, 50/60Hz
Output: DC6V, 500mA
Plug: Center minus, 5.5mm (external), 2.1mm (internal)
Standard: PSE

*Noise resistance
*AC adapter attached in the SI-65A.
AC adapter for SI-series GF12-US0618

Input: AC100-240V, 50/60Hz
Output: DC6V, 1.8A
Plug: Center minus, 5.5mm (external), 2.1mm (internal)

*Small, low cost AC adapter
Wide Input AC adapter 6A-181WP09 Input: AC100-240V, 50/60Hz
Output: DC9V, 2A
Plug: Center plus, 5.5mm (external), 2.1mm (internal)
*Same as AC adapter packaged with SI-65A-E