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10/100 Managed Hub
Module LH8100C-3FX
Module LH8100C-3FX provides a two port internal bridge for bridging
10Mbps and 100Mbps segments and 100BASE-FX distance extender with
SC type connectors and fiber cable. The internal bridge must be enabled or
disabled with on board jumpers before installation. The external distance
extender is always enabled. Module flow-control (backpressure) can be
enabled or disabled by setting the on board jumpers before installation. The
default settings are as follows:
•
Bridge Function setting: Internal enabled (Default)
•
Backpressure setting: Disabled (Default)
Module LH8100C-3FX Bridge Jumpers
The default jumper setting of the Module LH8100C-3FX is internal bridge
disabled. The external distance extender is always enabled. To enable the
internal bridge, change the jumpers (JP3 & JP5~JP7) from 1&2 to 2&3.
Jumper JP1—Duplex Jumper (JP1)
•
1&2 = half duplex
•
2&3 = full duplex
Jumpers JP3 & JP5~JP7
•
1&2 connected = internal bridge is disabled (Default ).
•
2&3 connected = internal bridge is enabled
Module LH8100C-3FX Backpressure Jumpers
The default jumper setting for backpressure is disabled. To enable the
backpressure function for the external port and internal 100Mbps segment,
change JP2 jumper to 2&3. To enable the backpressure function for the
internal bridge change JP8 jumper to 2&3.
Jumpers JP2, JP8
•
1&2 = disabled (Default)
•
2&3 = enabled
3 Ports
Switch Module
FDX
COL
LINK
TX
RX
2
NOTE: JP2 is used to control the distance extender port and internal
100Mbps-segment backpressure function. JP8 is used to control internal
bridge backpressure function.
Summary of Contents for LH8112A
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