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Mercury 8/16 User’s Manual
19
7. Troubleshooting
1. Ensure that all cables are well seated. Label all of cables with the number for
each respective computer to avoid confusion.
2. The recommended VGA cable distance is 5 meters maximum without
ghosting and degradation. Normally, the cable length is based on driver
capacity of your VGA card. If you need longer VGA cable, please use VGA
extender to accomplish your applications.
3. The recommended PS/2 cable distance is 5 meters maximum. Normally, the
cable length is based on driver capacity of your motherboard PS/2 port. If you
need longer PS/2 cable, please use PS/2 extender to accomplish your
applications.
4. The Power Jack polarity is center positive and the power adapter need be
DC12V, 1A
5. Don’t press any keys on the keyboard while the selected computer is booting
up. Otherwise, it might cause the keyboard error or keyboard is not detected
at PC side.
6. The computer boot up fine, but keyboard doesn’t work.
Make sure the keyboard works when directly plugged into the computer
Try a different keyboard, but use only 101, 102 or 104-key keyboard.
7. The Mouse is not detected during PC boot up.
Make sure the mouse works when directly plugged into the computer
Make sure the mouse is a true PS/2 mouse. A combo mouse will work just
as long as it is set for PS/2 mode with the correct adapter. Try a different
mouse.
Avoiding moving the mouse or pressing the mouse buttons when
switching ports.
Avoiding switching ports during shutting down the PC process.
When you switch one PC port to another PC port, the best scan time
setting need to be set to 5 sec. or more. Normally, the VGA monitor
change one resolution mode to another will take one or two seconds. So,
the scan time is not recommended to below 5 seconds.
8. The power switch is off, but the switch still works fine or power adapter is
unplugged from the switch, but the switch still works fine. KVM Switch unit
draws the power source from power adapter and all PC’s PS/2 port. Some
PC’s PS/2 port can support enough power for the switch, but some PC’s
PS/2 port ( like laptop, notebook computer…etc.) is unable to supply enough