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The ADDERLink XD522 KVM Extender features two DisplayPort connections and also carries S/PDIF digital audio, analog audio, high-speed and standard USB 2.0 signals, and RS-232 serial control. The system is designed to let you locate your critical computing hardware in a secure indoor environment away from the user workstation while maintaining a standard user desktop experience.
The transmitter/receiver units connect over a single or dual Cat 5e/6 or higher cables over distances up to 492'. Cat 7 shielded foiled twisted pair cables are recommended. At the maximum distance of 492', the system works in low-rate mode and supports a single 1080p60 display. In low-rate mode, the DisplayPort input 2 is disabled and a total of 148.5 MP/s is made available to the primary video port.
When working over cables measuring 328' or less, the system is capable of operating in high-rate mode, which allows you to use both DisplayPort connections and at more than twice the video bandwidth. High-rate mode supports a single UHD 4K30 or 2560 x 1600 at 60 Hz display signal or two 1920 x 1200 at 60 Hz displays.
Two Display Port Inputs/Outputs
The system supports a maximum of UHD 4K30 8-bit or 2560 x 1600 at 60 Hz on a single monitor, or 1920 x 1200 at 60 Hz 10-bit. It supports two monitors at 1920 x1200 at 60 Hz 8-bit. HDMI and DVI monitors can be connected via optional adapters. Content protection is not supported.
Low-Rate Mode (Input 1)
Maximum pixel clock: 148.5 MP/sec
2048 x 1080 at 60 Hz (147 MP/sec)
2048 x 768 at 60 Hz (105 MP/sec)
1920 x 1080 at 60 Hz (138 MP/sec)
1680 x 1050 at 60 Hz (119 MP/sec)
1600 x 1200 at 60 Hz (130 MP/sec)
1366 x 768 at 60 Hz (85 MP/sec)
1280 x 1024 at 60 Hz (109 MP/sec)
1024 x 768 at 60 Hz (63 MP/sec)
800 x 600 at 60 Hz (38 MP/sec)
High-Rate Mode (Input 1)
Maximum pixel clock: 280 MP/sec
4096 x 2160 at 30 Hz (280 MP/sec)
3840 x 2160 at 30 Hz (263 MP/sec)
2048 x 2048 at 60 Hz (279 MP/sec)
2560 x 1600 at 60 Hz (269 MP/sec)
2560 x 1440 at 60 Hz (242 MP/sec)
2048 x 1080 at 60 Hz (147 MP/sec)
2048 x 768 at 60 Hz (105 MP/sec)
1920 x 1200 at 60 Hz (154 MP/sec)
1920 x 1080 at 60 Hz (138 MP/sec)
1680 x 1050 at 60 Hz (119 MP/sec)
1600 x 1200 at 60 Hz (130 MP/sec)
High-Rate Mode (Input 2)
Maximum pixel clock: 154 MP/sec
2048 x 1080 at 60 Hz (147 MP/sec)
2048 x 768 at 60 Hz (105 MP/sec)
1920 x 1200 at 60 Hz (154 MP/sec)
1920 x 1080 at 60 Hz (138 MP/sec)
1680 x 1050 at 60 Hz (119 MP/sec)
1600 x 1200 at 60 Hz (130 MP/sec)
EDID Management
The ADDERLink XD522 intelligently manages the EDID information that each video display provides 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 the DisplayPort input 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 computer.
USB Support
ADDERLink XD522 supports a wide range of USB devices via four ports on the receiver unit. Three of the ports (labeled A) support low/full speed USB 2.0 and are made possible using Adder's proprietary True USB Emulation technology, which is specifically designed to overcome the problems usually encountered when remotely connecting USB keyboards and mice. The fourth USB port (labeled B) provides Hi-Speed USB 2.0 support with transfer rates up to 480 Mb/s. The three A ports support only USB keyboards and mice. Port B provides Hi-Speed USB support for mass storage and isochronous devices. (Availability of the fourth port (B) depends on the use of the Cat link B port.)
Audio Support
The system can transfer analog and digital audio signals across the Cat cable link. Standard analog audio is supported through 3.5mm jacks on the transmitter and receiver units: line in/out on the transmitter, and line in/out plus microphone/headphones ports on the receiver. Additionally, the line-in port on the transmitter and line out 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 the optical S/PDIF capabilities supported by the ADDERLink XD522 system, which transmits PCM audio at 96 kHz. The digital and analog channels run independently alongside each other via the Cat link. Optional third-party adapters can be used to convert between mini-TOSLINK and full size TOSLINK connectors found on many audio/visual devices. Supported compressed formats include DRA, Dolby MAT, and DTS HD.
Serial Communication Support
The transmitter and receiver both have serial ports that are used for firmware upgrades but can also be used to transfer 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 required on the ADDERLink XD522 as the transmitter and receiver merely pass through the serial signals.
Performance Recommendations
Due to the large volumes of data that must be transferred between the transmitter and receiver, every ADDERLink XD522 installation is highly dependent upon the quality of Cat cables. Video performance is particularly reliant on high-speed communication channels. For this reason, the ADDERLink XD522 transmitter/receiver periodically test the link quality to determine which of two video transfer modes can be supported: low rate or high rate. The main factors that affect link quality are 1) the length and type of cable used (23AWG or better is recommended, and the cable screening should be S/FTP, S/STP or PiMF), 2) the number, length, and type of intermediate patch connections, 3) and the quality of the cable terminations.
MTBF
Mean time between failure: 100,000 hours, calculated to Telecordia standard SR332 issue 4 March 2016.
