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CHAPTER 5: Operation
5.2 The Extender’s LEDs
The ServSwitch Wizard Extender’s transmitter and receiver modules each have one
LED mounted on their right sides next to their RJ-45 interconnect ports. There is a
similar LED on the right side of the power-supply module. If you have the modules
mounted in the Extender Chassis, this LED can be read from the front of the
chassis. On all of the modules, the LED has these two states and meanings:
• STEADILY LIT = The module is receiving enough power to operate.
• DARK = The module is not receiving enough power to operate.
On the transmitter and receiver, this LED can also have these two states and
meanings:
• FLASHING QUICKLY (approximately five times per second) = The module is
sending or receiving keyboard or mouse data.
• FLASHING SLOWLY (once per second) = The module is being upgraded.
Several things can cause the Extender’s LEDs to be dark. On the transmitter, this
can be caused by (in decreasing order of likelihood) loose/undone cable
connections, CPU cables being run farther than 5 m (16.5 ft.), low power on the
CPU’s keyboard port, the CPU being powered OFF, cables being broken, the
transmitter’s LED being defective, or the transmitter’s main board being defective.
On the receiver, this can be caused by (in decreasing order of likelihood)
loose/undone power-supply connections, AC outlet being turned OFF/not
working, power supply being broken, the module’s LED being defective, or the
module’s main board being defective. If you can’t determine the cause of this
problem, call Black Box for technical support.