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CHAPTER 3: Installation
3.5 BNC Connection (LE2801A-BNC, LE2801AE-BNC only)
Connect the ThinNet coax cable to the BNC connector on the rear of the
Stackable MiniHub in the same way as any standard BNC connection. The
BNC port is specially equipped with an internal termination switch that
eliminates the need to use a “tee” connector when the BNC cable is ending
at the Stackable MiniHub. When the switch is in the right position, the
connection is internally terminated. When switched to the left position,
external termination (“tee” connector, not supplied) is required. Some
applications may require a “tee” connector, used as a tap, to allow the
10BASE2 coax segment to continue on past the MiniHub port connection.
3.6 Fiberoptic Connection (LE2801A-FO, LE2801AE-FO only)
The following procedure applied to FOIRL and 10BASE-FL multi-mode
applications using a Stackable MiniHub. (The primary difference between
FOIRL and 10BASE-FL for users is the maximum distance allowed. 10BASE-
FL is used for a fiber segment length of up to 2000 m (6561 ft.), while FOIRL
is used for fiber segments of up to 1000 m (3280 ft.) in length.)
1. Before connecting the fiberoptic cable, remove the protective dust caps
from the tips of the connectors on the Stackable MiniHub’s rear fiber
port. 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 fiberoptic 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 fiberoptic segment, for example, TX on one end
and RX on the other end.
3. Connect the Transmit (TX) port (light colored post) of the Stackable
MiniHub to the Receive (RX) port of the remote device. Use the color-
coded strand of the cable for this first TX-to-RX connection.
4. Connect the Receive (RX) port (dark colored post) of the Stackable
MiniHub to the Transmit (TX) port of the remote device. Use the non-
color coded fiber strand for this connection.
