Specifications

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 PS/2 MICRO EXTENDER FAMILY

4.2 Adjusting Video

PS/2 Micro Extender Remote units incorporate video equalization circuitry, allowing you to

compensate for the loss in image quality that occurs when video signals are transmitted along

CATx cables. At the factory, Remote units are configured to optimize the video signals for

Interconnect cables up to 75ft (25m) in length.

If you intend to use cables of 75–150ft (25-50m) in length:

1. Ensure that you have installed and powered up the system according to the instructions

in Section 3.

2. Enter Command Mode by pressing the following key combination on the Remote

console keyboard:

3. By default, both channels are selected for adjustment and this is indicated by slow

flashing of the keyboard status LEDs (Num Lock, Caps Lock, Scroll Lock). If you want

to select a single channel press the corresponding numbered key:

Video channel Command Keyboard Status LED action

Channel 1 <1> Single flashes

Channel 2 <2> Double flashes

Both channels <0> (default) Slow single flashes

4. Press the following key combination to change the video equalization setting:

Note: This command toggles the video equalization setting; repeat the procedure to

revert to the original setting for a shorter interconnection cable length [<75ft (25m)].

5. If you are using one or more flat panel monitors in the Remote console, carry out

auto-adjustment as described in the monitor’s documentation. Sometimes manual

adjust of clock and/or phase is also required for optimum results and minimization

of jitter.

Technical Note: This video compensation does not correct color

separation (skew). Although skew can be an issue on some CATx

cables, it would not normally be observed on cables <150ft (50m).

Even so, we still recommend the use of low skew cables with PS/2

Micro Extenders. You can check whether skew is a problem in your

system by viewing the test card at:

http://www.blackbox.com/tech_support/ts_upgrades/ts_ss.html