User guide

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21
Operation
In operation, many AdderLink XD522 installations generally require no
intervention once configured. The transmitter and receiver units take care of
all connection control behind the scenes so that you can continue to work
unhindered.
Front panel indicators
The six front panel indicators on each unit provide a useful guide to operation:
Operating Modes
AdderLink XD522 units try at all times to maximize the data that can be
transferred between them. The achievable throughput depends upon the length
and quality of the cable links that join the units. Please see Tips for achieving
good quality links.
Video signals are most sensitive to link quality and for this reason the AdderLink
XD522 units have two modes of operation: Low Rate and High Rate. The units
periodically check the link quality and determine which video transfer mode can
be successfully used. The difference between the two modes is considerable as
High Rate mode can deliver over twice the video bandwidth. Please see Video
support for details.
You can also choose which link rate mode you would prefer to use (subject to
link cable suitability) by using the Hotkey functions - please see next page for
details.
On-screen icons are displayed on the video display whenever the link mode
changes, while the HR indicators on the front panels of both units continually
show which mode is currently being used. If a rate change does occur, the entire
data link will be reset. This will cause a momentary loss of the video, audio and
USB services.
HT
Indicators
These six indicators clearly show the key aspects of operation:
• A On Main A link is connected.
Flashes Main A link is not connected.
Off No power is present.
• B On Optional B link is connected.
Off Optional B link is not connected.
• V1 On Video port 1 is connected and receiving video.
Flashes Video port 1 is connected but not receiving video.
Off Video port 1 is not connected.
• V2 On Video port 2 is connected and receiving video.
Flashes Video port 2 is connected but not receiving video.
Off Video port 2 is not connected.
• HR On High Rate mode is active.
Flashes High Rate mode is preferred but cannot be established, LR mode active.
Off Low Rate mode is active.
• PS On Power connected.
Flashes Upgrade error (other indicators show error code).
Off No power.