Black Box ACS235A - Manual (Page 71)

20
SERVSWITCH™ BRAND FIBER KVM EXTENDERS
3.3.1 T
HE
S
YNC
-
ON
-C
OLOR
J
UMPERS
(JP1, JP2,
AND
JP3)
The Local Module of the ServSwitch Brand Fiber KVM Extender adds
synchronization signals to the color signals for transmission across the fiber link. If
you are using a VGA monitor (which is probably not equipped to handle sync on
color), you will want the Remote Module to use its decoupling diodes to strip this
sync information from the color signals, so you will leave the jumper posts at
locations JP1, JP2, and JP3 empty (the default setting) so that these diodes will be
active. But if you are using an RGB monitor (which is probably designed to receive
sync on color), you will want the Remote Module to leave the sync signals
combined with the color signals, so you should install jumpers at JP1, JP2, and JP3
to deactivate the decoupling diodes, as shown in Figure 3-7.
CAUTION!
The on-screen image might be displayed at a different size or screen
location at the remote site than it is when the monitor is attached
directly to the PC’s CPU. This difference can be fixed or at least
minimized by using the monitor’s display-size and -placement controls.
Screen images that appear normal except for their size or placement can
not be made “right” by installing these jumpers!
Figure 3-7. The sync-on-color jumpers and diodes.
JP1
JP2
JP3
Installed Removed
Diode active, sync stripped
(factory default)
Diode inactive, sync on color