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Switch Settings
There are three sets of DIP switches on the board. One set for fiber and
another for the connector. Following are the settings for the three
connector DIP switches.
S1
Pin1 Pull High
Pin 2 Pull Low
Pin 3 Terminator
150 kilo-
ohms
OFF
ON
-
1 kilo-ohm
ON
OFF
-
120 ohms
(enable)
-
-
ON
120 ohms
(disable)
-
-
OFF
ATTENTION
For Fiber Ring Users:
Before you plug the slide-in module into the chassis, make sure
the DIP switch settings are correct before inserting the slide-in
module into the chassis and connecting the serial and fiber
cables. If the Rx LEDs of the converter glow continuously,
remove the fiber cable and reconnect.
NOTE
“Ring Mode” can only be used for half-duplex applications.
The settings for the RS-485 DIP switches are:
S1
Pin1
Pin 2
Pin 3
RS-232
ON
ON
-
RS-422
ON
OFF
-
RS-485 (4W)
OFF
OFF
-
RS-485 (2W)
OFF
ON
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