Black Box ServSwitch Wizard Specifications download pdf (Page 49)

CHAPTER 5: Operation

5.11 Operating Synchronized ServSwitch Wizards

As described in Section 3.3.3, multiple ServSwitch Wizards can be interconnected

with serial cable and synchronized to support CPUs with multiple video outputs.

To select channels in synchronized systems, just send a hotkey command from the

master Wizard’s attached keyboard, press the master Wizard’s front-panel

pushbutton, or—if this is enabled—send a switching command from the master

Wizard’s attached mouse. This command will be echoed out of the master Wizard’s

OPTION port and received by the other synchronized Wizard(s), which will switch

to the same port. If you have your system cabled correctly, all of the video outputs

from the CPU you’ve selected will now be displayed.

5.12 Performing a Warm Reset

Sometimes, when problems occur in a ServSwitch Wizard system, powering the

Wizard off and back on again can fix the problem. If a Wizard is getting power

from its optional power supply, you can do this by unplugging and replugging the

power supply. But if the Wizard is getting power from the attached computers, the

only way to shut it down is to disconnect it from those computers or turn the

computers off, which might not be desirable or possible.

Instead of powering the Wizard off and back on to completely reinitialize it, you

can accomplish the same results by having the Wizard do a “warm reset” (hardware

reset) while it’s still operating. You’ll see an 8-position DIP switch on the bottom of

the Wizard. Move position 8 of this switch (the rightmost one if you hold the

Wizard with its front panel facing the ceiling) to the ON (up) position to make the

Wizard halt; move position 8 back to OFF (down) to reset the Wizard and return it

to normal operation.

Even though the Wizard doesn’t have any CPU startup communication to work

with after a warm reset, it should still be able to autodetect the correct keyboard

mode and mouse type under most circumstances. Occasionally, however, you’ll

also need to do a mouse reset and/or recovery (see Sections 5.7 and 5.8) to get the

mouse working properly.

Note: Aside from position 8 and position 7 (used for firmware upgrades, as

described in the next section), all of the positions of the Wizard’s DIP switch are

reserved for future use. Do not change their settings.

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Black Box ServSwitch Wizard Specifications Page 49