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ServSwitch Uno/Duo USB Installation and Use Page 24

2.7 Other useful installation information

Intelligent cables – The USB and Sun cables contain miniature active circuits that

are molded into the ends of the cable assembly. These circuits intelligently provide

signals to your computers that make them think that a keyboard and mouse are

continuously attached, even if the ServSwitch Uno/Duo USB is not connected or

powered on. This increases the reliability and robustness of the installation.

PC boot up sequence - When your PCs are powered on they communicate with

any attached keyboards and mice and setup parameters required by the particular

operating system. It is necessary for the ServSwitch Uno/Duo USB to be attached

and powered on during this sequence so that it can give the required responses and

keep track of all the modes and settings requested by each of the connected PCs.

Mouse characteristics - do not unplug a PS/2 mouse connection from a PC while

the PC is on. Due to the design of PS/2 mice communications the mouse function on

the PC will be lost and you will have to re-boot the PC to regain normal operation.

RS232 mice can usually be unplugged and plugged back in provided that a mouse

was connected when the operating system initially booted.

Keyboard and mouse mode switching - The ServSwitch Uno/Duo USB keeps a

log of the keyboard and mouse mode and resolution settings requested by each of

the connected PCs. These settings are automatically restored to the shared

keyboard and mouse when the ServSwitch channel is switched thus ensuring

maximum software compatibility. The keyboard num, caps and scroll lock states are

an obvious example of this process.

2.8 Hot plugging the ServSwitch Uno/Duo USB into running systems

and re-enabling disconnected CPU PS/2 mouse connections

It is adviseable to switch off the systems that are going to be connected to the

ServSwitch Uno/Duo USB before installation. However if this is not possible then

most systems can be hot plugged by using the ServSwitch’s mouse restoration

functions. The keyboard connection will normally restore itself automatically.

On many PCs, mouse movement will be lost if the PS/2 mouse is unplugged and

plugged back in while the PC is running. Mouse movement can then only be

restored by rebooting the PC. This is because the mouse drivers only setup and

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Black Box ACU5010A Spezifikationen Seite 25