11
Operation
General use
In use, the USB Extender modules should be transparent - the system and its
peripherals should operate exactly as normal, the only difference being that they
are now up to 100 metres apart.
In some installations, you may see some ‘shadows’ to the right of high contrast
screen characters. This can be caused by signal loss over long distances (or low
quality link cables) or by incorrect video signal compensation settings - see the
Signal loss compensation
section for details.
Power surge fuses
Both modules contain internal automatic cut-out fuses to protect against power
surges.
If a module stops responding
• Check whether the module’s ON indicator is lit. If the ON indicator is lit, then
the problem is unlikely to be power related, check all the connections.
• If the module ON indicator is not lit, check the indicator on its power supply,
or for the LOCAL module, check that the PC is operating and the USB link is
still connected.
• If the power supply indicator is lit, or the PC is operating (with the USB link
intact), then the anti-surge surge fuse may have been tripped. Reset the
anti-surge fuse, as detailed next.
To reset an anti-surge fuse
Remove the power connection (or, for an unpowered LOCAL module, the USB
connection) from the module for one second and then reconnect.
PO
W
ER
ON
HO
ST
LIN
K
AUDI
O
T
O REMO
TE
USB+
VIDEO
ER
®
PO
WER
ON
COMPENSA
TION
LINK
AUDI
O
T
O LOCAL
USB+
VIDEO
ER
®
ON
Lit whenever power (from the PC USB
port or optional power supply) is present.
HOST
Lit whenever a USB host (PC) is connected
and at least one device is attached at the
REMOTE module. This indicator will flicker
when an active PC host is connected,
but will darken if there is no remote USB
device.
LINK
Lit when a physical link exists between the
LOCAL and REMOTE modules.
ON
Lit whenever power from the power
supply is present.
LINK
Lit whenever a USB host (PC) is connected
at the LOCAL module and at least one
device is attached at the REMOTE module.
This indicator will flicker when an active
PC host is connected, but will darken if
there is no USB device connected at the
REMOTE module.
Power and activity indicators
The front panels of both modules feature recessed indicators to provide
confirmation of power and activity.
LOCAL module
REMOTE module
SECT 4