B&B Electronics 855-10927--57 - Manual - Manual (Page 5)

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Configuring McBasic TX/FX
McBasic TX/FX features an 8-position DIP Switch for
configuring the unit after installation. Access this
switch through a cut-out in the bottom of the unit.
After configuring the DIP Switch, power down the
unit and then power up again for the changes to
take effect. Default settings for the following
features are shown to the right.
Twisted Pair Crossover/Pass-Through Connections
Whether using crossover or straight-through CAT5 twisted pair cabling, McBasic
TX/FX will support both types of connections by one of the following methods:
AutoCross
Switch 4: McBasic TX/FX includes AutoCross, a feature which automatically
selects between a crossover workstation or pass-through connection
depending on the connected device. To enable AutoCross, move the
Auto MDI/MDI-X switch to the ON position.
MDI/MDI-X
Switch 3: To manually configure McBasic TX/FX for a pass-through (MDI) or a
crossover (MDI-X) connection, move the Auto MDI/MDI-X Switch 4
to OFF, then move Switch 3 to the desired connection type:
MDI=OFF and MDI-X=ON. If unsure of the type of connection, set
the DIP Switch to a position that makes the twisted pair LNK (link)
LED glow.