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18
INSTALLATIONCONFIGURATIONOPERATION
FURTHER
INFORMATION
INDEX
Serial connection
The Options port on the rear panel of every AdderLink XD522 unit operates as a serial
connection that can either:
• Be used to update the rmware of the unit (see Performing an upgrade for details), or
• Provide an RS232 serial connection that is passed between the transmitter and
receiver.
Whenever the AdderLink XD522 units are not in upgrade mode, they are ready to
transfer serial data between them at rates up to 115200 baud. When serial devices are
attached to the Options ports on the transmitter and receiver, the units transparently
convey the signals between them - no serial conguration is required.
To connect serial devices
1 Use a serial cable to link the Options port on the rear panel of the receiver unit with
the serial device.
From the
serial device
Link connections
AdderLink XD522 transmitter and receiver units are linked by either one or two
CATx cables at a distance of up to 150 meters (492 feet). The type and quality of the
CATx cables used are crucial to the mode of operation (please see the section Tips for
achieving good quality links). If Hi-Speed USB is not needed at the receiver then a CATx
link between the B ports of the units is not required.
IMPORTANT: The signals sent through the link cables are NOT compatible
with standard networking equipment and could cause damage if connected.
Do not connect the transmitter or receiver modules to any other networking
devices.
To link the units
1 Connect the CATx link cable from port A (on the front panel) of the transmitter unit
to the LINK A port on the rear panel of the receiver unit.
From link
port A on the
transmitter
unit
From link port B
on the transmitter
unit (required only
for transfer of Hi-
Speed USB)
2 If Hi-Speed USB is required, connect the CATx link cable from port B (on the front
panel) of the transmitter unit to the LINK B port on the rear panel of the receiver
unit.