LANCAST twister 2111-12-01 Installation & User Manual page 9

MDI-II to MDI-X Switch.
All "twister" media converters with twisted-pair ports have an
MDI-II to MDI-X switch that eliminates the need for crossover
cables. This switch is located on the bottom of the unit directly
below the RJ-45 connector and allows simple setup in either
straight through or crossover configurations. Refer to the
illustration below.
10BASE-FL 10BASE-FL
TX
TX
When setting the MDI-II to MDI-X switch, observe the
positioning of the following symbols:
• the parallel symbol (II ) indicates a straight through or
parallel connection.
• the cross symbol (X) indicates a crossover connection.
These symbols are clearly marked on the bottom of the unit.
Using a pointed object, simply slide the switch in the direction
of the appropriate symbol. Use the following table as a guide:
A device that is wired straight through, needs one crossover connection:
If the cable is...
straight through
crossover
A device that is wired crossover, needs a parallel connection:
If the cable is...
straight through
crossover
® ®
"twister" "twister"
10BASE-T 10BASE-T
LK
RX
SM RX
SM
AT
AT LK
MDI-II / MDI-X Switch
... the MDI-II to MDI-X Switch Setting should be
... the MDI-II to MDI-X Switch Setting should be
"twister" 2111 Media Converter
™ ™
2111
2111
PWR
LK PWR
AT
AT LK
X
II
II
X
9