Chapter 3: Installation
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Page 40
3.8.2
Connecting Fiber Optic ST-type, “twist-lock”
The following procedure applies to installations using ST-type
fiber connectors. This procedure applies to ports using multi-mode ST
fiber connectors.
1.
Before connecting the fiber optic cable, remove the protective dust
caps from the tips of the fiber connectors. Save these dust caps
for future use.
2.
Wipe clean the ends of the dual connectors with a soft cloth or lint-
free lens tissue dampened in alcohol. Make certain the connectors
are clean before connecting.
Note: One strand of the duplex fiber optic cable is coded using color
bands at regular intervals; you must use the color-coded strand on
the associated ports at each end of the fiber optic segment.
3.
Connect the Transmit (TX) port (light colored post) on the Fiber
port to the Receive (RX) port of the remote device. Begin
with the color-coded strand of the cable for this first TX-to-RX
connection.
4.
Connect the Receive (RX) port (dark colored post) to the Transmit
(TX) port of the remote device. Use the non-color coded fiber
strand for this.
5.
The LINK LED on the front of the fiber connector will illuminate
when a proper connection has been established at both ends (and
when power is ON in the unit). If LINK is not lit after cable
connection, the normal cause is improper cable polarity. Swap the
fiber cables at the fiber connector to remedy this situation.
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