ADDERLink XD522 DisplayPort Extender Quick Start

							AdderLink XD522
User Guide
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Contents
Introduction
Video support ........................................................................\
......3
USB support ........................................................................\
.........4
Audio support ........................................................................\
......4
Serial communication support ....................................................4
Tips for achieving good quality links .........................................5
AdderLink XD522 unit features ..................................................6
What’s in the box ........................................................................\
7
What you may additionally need ...............................................8
Installation
Mounting ........................................................................\
.............9
Connections ........................................................................\
.......10
Transmitter ........................................................................\
....10
Video connections ............................................................10
USB connections  ...............................................................10
Audio connections  ...........................................................11
Serial connection ..............................................................12
Link connections ...............................................................12
Power connection ............................................................13
Receiver ........................................................................\
.........14
Video display connections ...............................................14
USB connections ...............................................................15
Audio connections  ...........................................................16
Serial connection ..............................................................18
Link connections ...............................................................18
Power connection ............................................................19
Configuration
Performing an upgrade.............................................................20
Choosing the audio input mode ...............................................20
Operation
Front panel indicators ...............................................................21
Operating Modes.......................................................................21
Using hotkeys........................................................................\
.....22
The Dashboard ......................................................................22
Further information
Getting assistance ......................................................................23
General specifications ...............................................................23
Appendix A - Options port pin-out ..........................................24
Appendix B - EDID management ..............................................25
Appendix C - Tested video resolutions   ...................................26
Appendix D - Link cable interference protection   ..................27
Warranty ........................................................................\
............28
Safety information ....................................................................28
Radio Frequency Energy............................................................29
Index  
						

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Introduction
AdderLink XD522 is a high performance DisplayPort KVM 
(Keyboard, Video, Mouse) extender that enables you to 
locate your critical computing hardware in a secure and 
temperature controlled environment away from the user 
work station whilst maintaining the same user desktop 
experience. 
Using either one or two CATx cable links you can achieve 
separation distances of up to 150 meters/492 feet between 
the AdderLink XD522 transmitter and receiver units. 
At such distances the units can transfer high resolution 
DisplayPort video, USB 2.0 (low/full and Hi-Speed), digital 
and analog audio plus RS232 serial.
The units actively monitor the link quality and at link 
distances of less than 100 meters/328 feet, High Rate 
Mode* becomes possible; providing a second video port 
and more than twice the video bandwidth capability. 
In High Rate Mode, there is more than enough video 
bandwidth to support a single very high resolution 2560 x 
1600 display or two 1920 x 1200 displays (@ 60Hz refresh) 
or even 4K video - 4096 x 2160 (@ 30Hz refresh, single 
display).
* subject to link cable quality 
AdderLink XD522 
Transmitter
AdderLink XD522 
Receiver
Main CATx link carries:
Video 
Keyboard/mouse True USB Emulation 
Audio 
RS232 SerialOptional CATx link 
carries:
Hi-Speed USB only   
						

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Video support
AdderLink XD522 works hard to transfer the highest possible video bandwi\
dth 
between the transmitter and receiver units. To allow for the differing g\
rades 
of CATx links used to join the transmitter and receiver, AdderLink XD522\
 
periodically checks the quality of link A (the primary cable joining th\
e transmitter 
and receiver). In this way it can accurately determine which of two vid\
eo transfer 
modes can be supported. Please see Tips for achieving good quality links for 
further information. Please also see Tested video resolutions.  
On the front panel, the HR indicator will illuminate when High Rate mode is 
available, whereupon the second video port is enabled and the total avai\
lable 
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 Identi\
fication 
Data) information that each video display provides (detailing their su\
pported 
resolutions) before reporting them to the host PC. In this way AdderLin\
k XD522 
can mask the resolution modes that cannot be supported within the availa\
ble 
bandwidth. The display attached to Video port 1 will always be given pri\
ority. 
If sufficient bandwidth does not exist for the modes declared by the s\
econd 
display, then it will not be reported to the host PC. Please see Appendix B for 
details about how the EDID details supplied by each display are managed.\
     
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 MPix/sec (subject to\
 port 1 using no more than 154 MPix/sec of the available total 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  
						

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(A) TOSLINK connector with mini-TOSLINK converter
(B) Mini-TOSLINK connector
(C) Standard analog 3.5mm stereo jack  
(A)(B)
(C)
USB support
AdderLink XD522 units provide support for a wide range of USB devices vi\
a four 
ports on the receiver unit. Three of the ports (labeled A) support low\
/full speed 
(v2.0) USB and are made possible using Adder’s proprietary True USB Emulation 
technique which is specifically designed to overcome the problems usua\
lly 
encountered when remotely connecting USB keyboards and mice. The fourth \
port (labeled B) provides Hi-Speed (v2.0) USB with transfer rates up\
 to 480Mbits/
sec. 
Audio support
The AdderLink XD522 units can transfer analog and digital audio signals \
across 
the CATx cable link. Standard analog audio is supported through 3.5mm ja\
cks  
on the transmitter and receiver units: Line In/Out on the transmitter; L\
ine In/Out 
plus Microphone/Headphones on the receiver. 
The three A ports support only USB keyboards and mice. 
Port B provides Hi-Speed USB support for mass storage and isochronous de\
vices.
Note: Availability of the fourth (B) USB port depends upon the use of \
CATx Link 
B which is used solely for the transport of Hi-Speed USB signals.    
Additionally, the Line In socket on the transmitter and the Line Out soc\
ket on 
the receiver are dual purpose. They can accept either 3.5mm analog jacks\
 or 
mini-TOSLINK optical fiber connectors. The latter provide access to th\
e optical  
S/PDIF (Sony/Philips Digital InterFace) capabilities supported by 
the AdderLink XD522 system, which transmits PCM (Pulse 
Code Modulation) audio at 96KHz. The digital and 
analog channels run independently alongside each 
other via the CATx link.
Third party adaptors (not supplied) are 
available to convert between the 
mini-TOSLINK connections used 
on the AdderLink XD522 units 
and the more common full size 
TOSLINK connectors found on 
many audio/visual devices.    
Serial communication support
The AdderLink XD522 transmitter and receiver both have serial Options po\
rts 
which are used for firmware upgrades but are also available during nor\
mal use 
for transferring high speed serial data across the CATx link. This means\
 that 
you can connect the serial port of the Host computer to the transmitter \
and 
any serial device to the receiver. These can then freely communicate at \
up to 
115,200 baud across the transparent link. No serial configuration is r\
equired on 
the AdderLink XD522 units as they merely pass through the serial signals\
.   
						

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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 d\
ependent 
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 trans\
fer modes 
can be supported: Low Rate or High Rate. Please see Video support 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.
As illustrated in the table below, the cable type has quite a marked aff\
ect on the 
maximum distance that can be achieved with High Rate mode: 
Low rate mode
High rate mode
As mentioned above, patch links affect performance. For each additional \
break/
patch within a run, you will need to reduce the distance given above by \
roughly 
5 meters.
For best results, patch cables should be of type CAT 7a and be less than\
 2 
meters in length. If patch cables are greater than 2 meters, then they m\
ust be 
CAT 7a.
Adder recommend the following CAT 7 shielded, foiled, twisted pair cable\
s:
•	 Flexible	patch cable  Daetwyler 7702 (26AWG S/FTP)
•	 Bulk	cable		 	 Daetwyler	7120	(23AWG	S/FTP)	
Essential cable properties•		 A	gauge	(thickness)	of	23AWG	or better is recommended.
•	 The	cable	screening	should	be:	S/FTP, S/STP or PiMF.
 Please see Appendix D - Link cable interference protection for details.  
To achieve 150m (in LR mode),  the cable thickness is important: Use 23AWG (or thicker).
To achieve 100m (in HR mode), both the thickness and screening are important: Use 23AWG (or thicker) with S/FTP screening.
Please see Appendix D - Link cable interference protection 
for details about cable screening and shielding.   
						

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AdderLink XD522 unit features
The AdderLink XD522 units are housed within durable, metallic enclosures\
 with port connectors situated on the front and rear 
panels. The smart front faces also feature the operation indicators.
Transmitter - front
Optional B link
Transmitter - rear
Main  A link
Primary DisplayPort  video  input
Audio  line  in/out
USB link A port
Power inputSecondary DisplayPort  video  input
USB link B port
Multi function Serial port 
Receiver - front
Hi-Speed USB port
Receiver - rear
True Emulation  USB port
Headphone/ microphone sockets
True Emulation USB ports
Primary DisplayPort  video  output
Audio  line  in/out
Power inputSecondary DisplayPort  video  output
Multi function Serial port 
Optional B linkMain  A  link
IndicatorsThese 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.
Line Out  jack supports mini-TOSLINK
Line In  jack supports mini-TOSLINK  
						

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Transmitter unit
Eight self-adhesive rubber feet
Power adaptor (20W) and country-specific power lead
What’s in the box
2 x Audio cable 2m  (3.5mm stereo jacks) Part number: VSC22
Quick Start Guide
Receiver unit
Power adaptor (20W) and country-specific power lead
Serial cable 2m Part number: VSC40 
2 x USB cable 2m (type A to B)Part number: VSC24
DisplayPort cablePart number: VCSD10  
						

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What you may additionally need
Two 19” rack-mount brackets and four screwsPart numbers: One unit per 1U rack slot: RMK4STwo units per 1U rack slot: RMK4D
Audio cable 2m  (3.5mm stereo jacks)Part number: VSC22
Serial cable 2m Part number: VSC40 USB cable 2m (type A to B)Part number: VSC24DisplayPort cablePart number: VCSD10  
						

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Installation
Mounting
There are two main mounting methods for transmitter and receiver units:
•	 The	supplied	self-adhesive	rubber	feet
•	 Optional	rack	brackets
Connections
Rack brackets
The optional brackets (plus four screws), allow the 
units to be secured within a standard rack slot. Note: The units and their power supplies 
generate heat when in operation and 
will become warm to the touch. Do not 
enclose them or place them in locations 
where air cannot circulate to cool the 
equipment. Do not operate the equipment 
in ambient temperatures exceeding 40oC. 
Do not place the products in contact with 
equipment whose surface temperature 
exceeds 40oC.  
HT