12
No.
Name
Explanation
Note
1
Power Supply LED It lights in green when the unit is powered.
2
Data Status LED
The LED of “SD” lights when a data is transmitted from LAN to
RS-422/485.The LED of “RD” lights when a data is transmitted
from RS-422/485 to LAN.
3
Driver Status LED It lights when the driver for RS-485 is active.
4
Dip Switch A
Switches for line monitoring function and driver control.
[ 2-5. ]
5
Dip Switch B
Switches for communication method, terminating resistance, etc.
[ 2-5. ]
6
Power Terminal
Block
*1
3 poles, 7.62mm pitch, M3 terminal screws (with cover)
Standard Torque: 0.5Nm
[ 2-8. ]
7
Ethernet Connector 10Base-T/100Base-TX, RJ-45 connector
[ 7-5. ]
8
RS-422/485
Terminal Block
*1
5 poles, 5.08mm pitch terminal block (Press-to-screw type)
Standard Torque: 0.25Nm, Screw size: M3
[ 2-6. ]
9
Rubber foot
Rubber foot to place the unit horizontally.
[ 7-6. ]
*1 Power terminal block Terminal Name Description
AC IN
Power terminal (AC85 - 264V, 50/60Hz)
FG
Terminal for frame ground
*2 Pin assignment of RS-422/485 terminal block
Terminal
No.
Name
Full Duplex Mode
*1
Half Duplex Mode
*1
I/O Direction
*2
Description
I/O Direction
*2
Description
1
SD+
Out
Transmission Data+ -
Cannot use
*3
2
SD-
Out
Transmission Data- -
Cannot use
*3
3
SD/RD+ In
Reception Data +
I/O
Transmission/Reception Data +
4
SD/RD- In
Reception Data -
I/O
Transmission/Reception Data -
5
GND
-
Signal Grand
*4
-
Signal Grand
*4
*1 Can switch by the dip switch B.
*2 "Out" means a direction to output signals from the converter. "In" means a direction to input
signals to the converter. "I/O" means both directions to input and output.
*3 Do not connect anything when using the half duplex mode.
*4 Connect to GND (SG) of the target device
[ 2-6. SI-65(A/FA) Cable Connection ]
