Lightwave Communications USB SuperSwitch - Manual (Page 22)

Lightwave Communications USB S
ERVER
S
WITCH
Page 22 of 25 December 2001
If more than eight servers are to be connected, then cascading of the USB
ServerSwitch is necessary. In a cascade environment, the first unit that is installed
is considered the "Master Unit". All information is stored in the Master Unit.
Cascading the units is very simple.
If the existing USB ServerSwitch unit has been installed and running, it is not
necessary to turn off the power to the Unit. The installation of additional units can
be accomplished without any interruption to the existing servers.
STEP 1 - Connect CONTROL Cable
Connect the DB9 Serial data cable (supplied with each USB ServerSwitch) from
the Master Unit "Control Out" port to the first Aux Unit "Control In" port. Make
certain that these cables are securely fastened to the units. These data cables
carry all mouse, keyboard, and control data necessary for cascading units.
If more units are cascaded, connect the Control Out port to the Control In port of
the next unit to be cascaded, using a DB9 Female to Male serial cable.
STEP 2 - Connect Video Cascade Cables
Connect the "Video Cascade In" ports on the Master Unit to the USER video ports
(Port A Output to Port A Cascade In, Port B Output to Port B Cascade In). This will
allow the video signals from the Aux units to reach the Consoles that are
connected to the Master unit. Follow this procedure for as many Aux units (one
Master plus 7 Auxiliary units, max) as required for the servers.
STEP 3 - Turn the Auxiliary Unit On
Turn on all of the Auxiliary units that were installed. Connect the servers to these
units as done in the earlier installation for a single unit.
To install a USB ServerSwitch as the new master, turn the old master off, connect
it, and then turn it back on. Turning off the old master may affect servers
connected to it, so it is recommended that you shut down any SERVERs
connected to the old master before performing this installation.