iSC2F User’s Manual
UM-iSC2F-2-EN.docx
Pages 5 of 12
Serial Standard Conversion
1.
RS232 device
2.
iSC2F
3.
RS485 Device/ Network
Position
State
Notes
1
OFF
RS232 to fiber
2
ON
RS232-to-RS485/422 conversion
3
ON/OFF
Full-duplex
4
OFF
No 120
Ω
termination
5
OFF
Fiber repeater
6
ON/OFF
1200 – 2400 baud
7
ON/OFF
4800 – 9600 baud
8
ON/OFF
14400 – 19200 baud
9
ON/OFF
28800 – 38400 baud
10
ON/OFF
57600 – 115200 baud
In this mode of operation, RS232 voltage levels are converted to the appropriate RS485 or
RS422 signaling levels depending on the DIP switch configuration. In this mode of operation
position 2 of the DIP switches must be in the ON position when operation position of switch 1
is OFF.
Position 6 – 10 of the DIP switches must reflect the proper operating baud rate.
NOTE
In this mode of operation, no isolation is provided between RS232 device and the RS485/422
network– both devices share the same common terminal. It should be noted that the common
terminal on RS232 devices is connected to ground. In some instances (i.e. when connecting
to large RS485 networks), it may be preferential for the user to leave the RS485/RS422 shield
terminal unconnected to the ISC2F in this mode.
