Transition Networks specifications Optionally Cascading 12-Port Stackable Hub, StackMaster TX12

Optionally Cascading 12-Port Stackable Hub

Using Port 12 to Cascade Two Hubs

Two StackMaster™ TX12 hubs can be cascaded using the two connections at the front of each hub that are labelled ‘Port 12’.

To cascade two StackMaster TX12 hubs:

Up to 5 meters

1.Locate or build 100BASE-TX cable with the following characteristics:

•803.2 compliant (See page 15)

•cable length less than 5 meters

•male RJ-45 plug connectors installed at both ends of cable.

2.Connect male RJ-45 plug connector at one end of 100BASE-TX cable to Port 12 connector marked MDI-X.

3.Connect male RJ-45 plug connector at other end of 100BASE- TX cable to Port 12 connector marked MDI.

Using SCSI Connectors to Cascade Stacked Hubs

Up to six StackMaster™ TX12 hubs can be cascaded by installing SCSI connectors at the back of the StackMaster™ TX12 stack.

To cascade a StackMaster™ TX12 stack:

NOTE: Install the SCSI cable by carefully pressing the cable connector against the StackMaster™ TX12 connector until the connectors snap into place.

1.At back of stacked StackMaster™ TX12 units to be cascaded, connect a SCSI cable to the BOTTOM SCSI connector on the top StackMaster™ TX12 hub.

2.Connect the SCSI cable to the TOP SCSI connector on the next StackMaster™ TX12 hub.

3.Connect another SCSI cable to the BOTTOM SCSI connector on that StackMaster™ TX12 hub, as shown above.

4.Connect the SCSI cable to the TOP SCSI connector on the next StackMaster™ TX12 hub, as shown above.

5.Continue connecting SCSI cables by repeating steps 3 and 4 until the entire StackMaster™ TX12 stack is cascaded.

NOTE: The open SCSI connectors at the top and bottom of the StackMaster™ TX12 stack do NOT require termination.

7 StackMaster™ TX12 100BASE-TX 12-Port Stackable Hub 8