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


Supports 10Base-T/100 Base-TX, Built-in Xport®
  • Insulation (withstand voltage AC 2000V)
  • Built-in wide AC input

SI-65FA is an interface converter to connect equipments such as equipment for factory automation or analyzers which have RS-422/485 communication ports to LAN.

The built-in Lantronix Xport® on the LAN interface converts RS-422/RS-485 data into LAN protocol (TCP/IP and transfers the LAN data by controlling RS-485 driver automatically.  It offers high reliability by insulating between LAN and RS-422/485 interfaces by the photo-coupler. It works without AC adapter by built-in wide AC input. It has the robust metal body and supports 35mm DIN rail, and can be used under the environment of –20 degrees Celsius. Therefore, you can use it for factory automation without worry.

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


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

Block Chart

Example of Connection

DIN Rail Installation Example


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, 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) 90(W) x 100(D) x 22 (H)mm
Weight (g) Approx. 280g
Accessories Utility CD-ROM, Instruction manual, Warranty
*1To use at 460.8Kbps or 921.6Kbps, set the XPort as high performance mode. Please refer to the User's manual.
*2Half 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.
*3Half 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.
*47.62mm pitch, 3 pole terminal block, M3 screw


Description Name Model Remarks
DIN Plate DIN Plate for SI-FA series SI-DIN10

Used to set SI-65FA to 35mm Din rail

Note: SI-DIN10 does not support SI-65FA-L
L-shaped bracket SI-ML1

Used to hang SI-65FA on the wall

Note: SI-65FA-L can be hung on the wall without this option.