User Manual

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ATTENTION
For Fiber Ring Users:
To avoid problems when setting up a fiber ring, each TCF
-142
unit making up the ring must be powered down and set to
“Ring mode.”
Next, make sure all cables are connected
properly, and then power up all devices connected to the ring.
NOTE
“Ring Mode” can only be used with half-duplex applications
(i.e., RS-485 multi-drop communication).
DIP Switch Selectable Terminator
The TCF-142’s termination resistor is set with a DIP switch located on
the outside of the converter’s casing.
No Configuration Required for Baudrate Settings
The TCF-142 is compatible with any baudrate from 50 bps to 921.6
kbps. The TCF-142 automatically converts the signal back and forth
between serial (RS-232, RS-422, or RS-485) and fiber, and does not
need to interpret the signal or the baudrate of the transmitting device.
For this reason, the TCF-142 does not have any DIP switches or
jumpers for setting the baudrate.
Features
• “Ring” or “Point to Point” transmission
• Extend RS-232/422/485 transmission distance:
 up to 40 km with single-mode—TCF-142-S Series
 up to 5 km with multi-mode—TCF-142-M Series
• Compact size
• Decrease signal interference
• Protect against electronic degradation and chemical corrosion
• Supports baudrates up to 921.6 kbps
• Extended operating temperature from -40 to 75°C (for “T” models)
Package Checklist
Before installing the TCF-142, verify that the package contains the
following items:
• 1 TCF-142 media converter
• Power jack to 3-pin terminal block adaptor
• Stick-on pads
• Quick installation guide (printed)
• Warranty card
NOTE: Please notify your sales representative if any of the above items
are missing or damaged.