Applications note and tips, 1 hdcp – Analog Way SmartMatriX2 User Manual

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10.1 HDCP

10. APPLICATIONS NOTE AND TIPS

HDCP is a content protection mechanism which uses encrpytion to prevent high value content from being

delivered to non-authorized devices. For example, Blu-ray players use HDCP on their HDMI®outputs to ensure

that the HDMI®output cannot be routed to a digital recording device.

The SmartMatriX² is fully HDCP compliant, meaning that you will be able to use the SmartMatriX² to accept

HDCP protected sources and route them to any HDCP protected outputs. As Analog Way is a licenced HDCP

adoptor, this also means that the SmartMatriX² is prevented from displaying any HDCP protected images on

any non-HDCP compliant outputs (as is the case for all licenced HDCP compliant devices).

HDCP can only be used on certain connection formats, including DVI, HDMI, and Displayport. Keep in mind

that simply because a connection is using a DVI, HDMI, or Displayport connection, it does not guarentee

that the devices connected are maintaining an active HDCP connection. For example, you may find video

recording or capture devices equipped with an HDMI®input, however HDCP licencing forbids these devices

from capturing HDCP protected content.

HDCP is not supported on connection formats such as composite, component, Svideo, SD-SDI, HD-SDI,

3G-SDI, or VGA. This means that any source which becomes protected by HDCP cannot be converted to

these formats. For example, while you may find a Blu-ray player which can directly output a composite video

signal, HDCP licencing forbids converting the HDCP protected HDMI®signal back to composite or any other

non-protected format.

To help troubleshoot HDCP in your installation, each input and output page is equiped with HDCP status

information to indicate in realtime when HDCP encryption is being used.

Certain devices such as Macintosh computers can be misleading to use in conjunction with an HDCP

compliant presentation switcher such as the SmartMatriX². This is because devices like the Mac computers

can be used to output both HDCP protected content (such as a movie downloaded from iTunes) as well

as non-HDCP protected content (such as a Keynote presentation or the desktop). When a computer first

connects to an HDCP compliant device such as the SmartMatriX², it learns the capabilities of the device

through the EDID connection. Upon seeing the HDCP compatibility of the attached SmartMatriX², devices

like the Mac computers will immediately attempt to use HDCP encrpytion at all times, despite the content

currently displayed on the computer screen. Since this source would now be considered an HDCP protected

source, the SmartMatriX² would be required to prevent it from being displayed on VGA or SDI outputs and

only allow it to be displayed on outputs protected by HDCP. To work around this problem, the SmartMatriX²

allows the HDCP features of a particular input to be disabled, which in turn informs the Mac computer to

avoid using HDCP, and allows content such as Keynote and the desktop to be displayed, as this input will no

longer use HDCP protection. Please note that disabling the HDCP features of the input do not circumvent

HDCP protections, and thus do not allow you to view any content which requires this protection.

For more information about HDCP, please refer to our whitepapers on HDCP, or visit the HDCP foundation

website.

10.1 HDCP

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