ADDERLink XD522 DisplayPort Extender Manual

							AdderLink XD522
Quick Start Guide
AdderLink XD522 
Transmitter
AdderLink XD522 
Receiver
Main CATx link carries:
Video 
Keyboard/mouse True USB Emulation 
Audio 
RS232 Serial
Optional CATx link carries:
Hi-Speed USB only 
IMPORTANT: Please see the full AdderLink XD522 user guide for safety, warranty and regulatory information. The full user guide is available from www.adder.com.  © 2013 Adder Technology Limited • All trademarks are acknowledged. Part No. MAN-XD5x2-QS-ADDER • Release 1.0a  
Web:   www.adder.com
Contact:   www.adder.com/contact-details
Support: forum.adder.com
Front panel indicators
The six front panel indicators on each unit provide a useful guide to 
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  HR 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.
Tips for achieving good quality links
Due to the large volumes of data that must be transferred between 
the transmitter and receiver, every AdderLink XD522 installation 
is highly dependent upon good quality CATx cable links. Video 
performance is particularly reliant on high speed communication 
channels. For this reason, the AdderLink XD522 units periodically 
test the link quality to determine which of two video transfer modes 
can be supported: Low Rate or High Rate. Please see page 3 for 
details about high and low rate video modes.
The main factors that affect link quality are:
• The length and type of CATx cable used,
• The number, length and type of intermediate patch connections,
• The quality of the cable terminations.
The table below provides a brief overview of distances that may be 
achieved using different CATx cable types. Please see the full user 
guide for more details.  
						

							Transmitter - frontReceiver - front
Transmitter - rear
Primary and secondary DisplayPort  video  inputs
Audio  line  in/out
USB link A port
Power inputUSB link B port
Multi function Serial port 
Line In  jack supports mini-TOSLINK
Receiver - rear
Audio  line  in/out
Power inputMulti function Serial port 
Optional B  link
Main  A  link
Line Out  jack supports mini-TOSLINK
Primary and secondary DisplayPort  video  outputs
Video support
AdderLink XD522 works hard to transfer the highest possible video 
bandwidth between the transmitter and receiver units. To allow for 
the differing grades of CATx links used to join the transmitter and 
receiver, AdderLink XD522 periodically checks the quality of link A 
(the primary cable joining the transmitter and receiver). In this way \
it 
can accurately determine which of two video transfer modes can be 
supported. Please see the rear page for details about achieving good 
quality links.   
On the front panel, the HR indicator will illuminate when High Rate 
mode is available, whereupon the available bandwidth for video 
signals is more than doubled. 
The manner in which bandwidth is made available to the two video 
ports differs between the Low and High Rate modes, as described 
here:        
EDID management
AdderLink XD522 intelligently manages the EDID (Extended Display 
Identification Data) information that each video display provides 
(detailing their supported resolutions) before reporting them to 
the host PC. In this way AdderLink XD522 can mask the resolution 
modes that cannot be supported within the available bandwidth. 
The display attached to Video port 1 will always be given priority. If 
sufficient bandwidth does not exist for the modes declared by the 
second display, then it will not be reported to the host PC.    
High rate mode
This diagram indicates how the total bandwidth of the high rate mode can\
 be shared between the two video ports.
Video port 1 (which has priority) may take up 280 MegaPixels per secon\
d (of the total 308 Mpix/sec bandwidth); while port 2 can use a maximum of 154 MP\
ix/sec (subject to port 1 using no more than 154 MPix/sec of the available tot\
al bandwidth).
For example:
A single WQXGA mode display could consume nearly all of the port 1 bandwidth alone, or...
... two WUXGA mode displays could share the total evenly. 
Note: The example modes shown here are for illustrative purposes and are\
 based upon average requirements for current video displays. Video displays fro\
m some manufacturers may consume more signal bandwidth than those shown here.
* All approximate video mode bandwidth figures are quoted with reduced\
 blanking. 
During low rate mode, the secondary video port is disabled and a total bandwidth of 148.5 MegaPixels per second is made available to the primary video port. This is more than enough to support a single 1080P video display. 
Low rate mode
Optional  B  link
Main  A  link
Front panel indicators(see rear page)
Hi-Speed USB portTrue Emulation USB port
Headphone/ microphone sockets
True Emulation USB ports
Front panel indicators(see rear page)