Christie Spyder X20, User Manual

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Spyder X20 HDCP Functionality (Option)
Spyder X20 User Manual 166
020-000916-01 Rev. 1 (04-2016)
Spyder X20
Set-top box
Blu Ray Player
Computer
Spyder X20
Projector
Displays
Spyder X20
Satellite
Receiver
Router
Router
Game console
Figure 54: Connection Topology of Spyder X20
The mode selection is done in Frame Configuration option in the Vista Advanced Software and requires a server
restart to take effect. In HDCP mode, all the interfaces except the HDCP-protected interfaces will be switched
off. SDI and Analog will cease to function and only DVI will continue to work in HDCP mode. All Video
transmitted through the outputs will be HDCP encrypted and will only be able to function with displays or
receivers with HDCP capability (through DVI or HDMI). At the input side, all the inputs including non HDCP-
protected interfaces will continue to work in HDCP mode.
In X20, HDCP Cipher and the associated control logic is implemented in FPGAs. During production the Device Key
Set which is unique for each individual input and output DVI connection is encrypted and programmed into the
PROMs from where FPGAs access these keys when required for authentication and decryption of HDCP content.
X20 Processing
Device Key
Set
Not Encrypted
Not Encrypted
HDCP
HDCP
HDCP
Cipher
HDCP
Cipher
Device Key
Set
Input Modules
Output Modules
Figure 55: HDCP Operation in X20