Black Box KV812A, KV822A instruction

CHAPTER 6: Troubleshooting

The Power key on my Mac USB keyboard doesn’t seem to work.

For its Power key to function properly, a Mac USB keyboard must be plugged into the ServSwitch USB’s rightmost USB-peripherals port (see Section 4.3.2).

I can’t do any of the Mac Power-key functions with my PC USB or PS/2 keyboard.

Unfortunately true. For Power-key functions, you must plug a Mac USB keyboard, at least temporarily, into the ServSwitch USB’s rightmost USB-peripherals port (see Section 4.3.2).

My video quality is poor (smearing, fuzziness, rippling, etc.).

Use shielded or screened coaxial video cables to connect your monitor and CPUs to the ServSwitch USB.

ServSwitch USB Plus only: My PS/2 mouse doesn’t move the cursor/pointer.

Check the mouse connection to the Switch; if it’s OK, try changing the CPU channel to recover the mouse (see Section 5.5).

ServSwitch USB Plus only: My PS/2 or PC/AT type keyboard doesn’t function when it’s attached to the Switch, or functions only intermittently. The Num Lock LED doesn’t always light when the Num Lock key is pressed.

Some older keyboards were designed for use with specific computers and are not truly PC/AT or PS/2 compatible. These are not common, but if you’re having problems like this and you’re using an old keyboard, try a newer keyboard.

ServSwitch USB Plus only: Just using my PS/2 mouse normally causes the Switch to change the CPU channel unexpectedly.

Some cheaper PS/2 mice are not fully compatible with the ServSwitch USB Plus and can lose data, which—if mouse switching is enabled (see Sections 3.5 and

5.5)—sometimes causes the Switch to interpret a data stream as a channel-change request. Try using a Microsoft, Logitech, IBM, Compaq®, or Hewlett-Packard®mouse instead.