LevelOne KVM-8901 - Manual (Page 22)

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APPENDIX-1 Notes on 3-in-1 LCD Drawer
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 (Model No. VGA-100, MAX. 100) to accomplish your applications.
3. The recommended PS2 cable distance is 5 meters maximum. Normally, the cable length is based on driver
capacity of your motherboard PS2 port. If you need longer PS2 cable, please use PS2 extender (Model No.
PS-100, MAX. 100 feet ) to accomplish your applications.
4. 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.
5. If forgetting the password you typed, please contact your supplier.
Trouble Shooting
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.
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.
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 PS2 port. Some PC’s PS2 port can support enough power for the
switch, but some PC’s PS2 port (like laptop, notebook computer…etc.)
is unable to supply enough power for the switch. In order to make sure
the system can work steadily, please do not set power switch to off
state or remove the power adapter from the switch.
 Although the PCs connected to KVM Switch unit are able to support
enough power to the stand alone switch, KVM Switch unit still needs a
power adapter for daisy chain more banks.