SERVSWITCH™ BRAND CAT5 KVM MICRO EXTENDER
7.3 The Scroll-Lock Reset
When a ServSwitch™ Brand CAT5 KVM Micro Extender system is set to its factory defaults, you can press and release the Scroll Lock key once on the keyboard attached to the Remote Unit (or twice on the keyboard attached to a Local Unit in a Dual-Access system—see Section 7.5) in order to reinitialize the keyboard and the associated mouse after you detach and reconnect either of them. You can also press and release Scroll Lock to attempt to reset the keyboard and mouse if either of them ever lock up. Note that the Micro Extender will automatically reinitialize the keyboard and mouse whenever you attach them. If a Scroll-Lock reset doesn’t help your remote keyboard or mouse, try cycling power to the Remote Unit.
Very few applications today make extensive or important use of the Scroll Lock key/function. If you are using such an application, and you need the Micro Extender to pass Scroll Lock through to the device attached to the Local Unit, disable the Extender’s Scroll-Lock reset by setting DIP switch 2 to ON (see Section 5.2).
7.4 Correcting the PS/2 Mouse If It Gets Out of Sync
On rare occasions, you might notice that, instead of behaving normally, your mouse pointer is moving and jumping erratically all over the screen (and possibly selecting things at random). This is usually a sign that the PS/2 mouse has gotten “out of sync” with the ServSwitch™ Brand CAT5 KVM Micro Extender or that the Micro Extender has gotten out of sync with the CPU’s PS/2 mouse port.
To explain: PS/2 mice send mouse data in 3- or 4-byte packets. As long as the CPU knows which bytes mark the start and end of each packet—which it virtually always does as long as the mouse is directly connected to it—it can correctly interpret the mouse signals. But when mice are disconnected and reconnected, or when mouse signals pass through other devices on their way to the CPU, it is sometimes possible for the CPU or the intervening devices to lose track of where the mouse-data packets begin and end, with the result that the cursor/pointer begins behaving bizarrely.
