Blackbox KV7118SA, User Manual, Page: 18 / 72

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CHAPTER 3: Installatiom
3. Installation
3.1 Unpacking the Switch/The Complete Package
We ship the ServSwitch Elite in packaging designed to protect the system during
shipping and handling. We recommend that you save the carton and packing
materials in case you need to transport the Switch later.
The complete ServSwitch Elite system you should have received includes:
• The ServSwitch Elite main unit.
• Its power cord.
• This manual.
Please contact Black Box right away if anything is missing or arrived damaged.
3.2 Setting DIP Switch F (4x8 Model Only)
In its factory-default “cooperative” state, the ServSwitch Elite 4x8 (KV7148FA)
always resolves port/slave contention in favor of existing connections: Even if a
console is idle, no matter how long it has been in control of a computer port, no
other console can connect either to that port (if the port’s on a single or master
Switch) or to any port on that unit (if the port’s on a cascaded slave Switch). If
another console tries to do so, the attempt is denied and the other console
becomes “deselected” (not connected to any port). For example, suppose the user
at Console A has selected computer port 3 and the user at Console B has selected
port 6. If Console A’s user tries to select port 6, the request will be ignored and
Console A will lose its connection to port 3, becoming disonnected from all of the
computer ports until its user selects another.
If this is OK with you, go on to Section 3.3. But if you would like your 4x8 Switch
to always resolve port/slave contention in favor of new connections instead—so
that, in the above example, Console A would get port 6 and Console B would be
displaced (not connected to any computer port, with its monitor blanked)—you
need to move its DIP switch F to the “preemptive” setting. Following the first part
of the procedure for upgrading the Switch’s firmware (see Appendix B), open the
little panel on the bottom of the unit, exposing an area of the circuit board that
contains a block of four DIP switches. Move the switch marked “1-1” on the left end
of the block to the “ON” position and close the panel back up again. Your Switch is
now set to “preemptive” mode, and will allow any console to select any computer
port at any time, even if doing so disrupts previously established console-to-
computer-port connections.