Black Box LH8124A, LH8112A-S manual 28 10/100 Managed Hub, Module LH8100C-2TX Bridge Jumpers

Module LH8100C-2TX

Module LH8100C-2TX is either an internal bridge for bridging the internal 10Mbps and 100Mbps segments or an external 10/100BASE-TX distance extender with MDI-X and MDI-II interfaces using an RJ-45 cable. Only one of these functions can be enabled at one time. The internal or external bridge must be enabled or disabled with on board jumpers before installation. 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 (Default)

•Backpressure setting: Disabled (Default)

Module LH8100C-2TX Bridge Jumpers

The default jumper setting of the LH8100C-2TX module is internal bridge enabled. To disable the internal bridge and enable the external bridge, change the jumpers (JP1~JP16) from 1&2 to 2&3.

Jumpers JP1~JP16

•1&2 connected = internal bridge is enabled (Default)

•2&3 connected = external bridge is enabled

Module LH8100C-2TX Backpressure Jumpers

The default jumper setting for backpressure is disabled. To enable the backpressure function, change JP18 jumper to 2&3.

Jumper JP18

•1&2 =disabled (Default)

•2&3 = enabled

2 3 Ports

Switch Module

LINK 100M

TX FDX

RX COL

	100BASE-TX
MDI-X	MDI-II

28 10/100 Managed Hub