Installation and Operation, cont’d
Transmitter power indicator
A Power LED —
HDMI 201 Tx
HDMI 201 A D Tx (Decora) — This
Amber — The unit is receiving power.
Green — The unit is receiving power and a signal is present on the HDMI input.
Receiver indicator
A Power LED —
HDMI 201 Rx
HDMI 201 A D Rx (Decora) — This
Amber — The unit is receiving power.
Green — The unit is receiving power and a signal is present on the TP input.
System operation
After the transmitter, the receiver, and their connected devices are powered up, the system is fully operational. If any problems are encountered, ensure all cables are routed and connected properly.
NEnsure that the video source and display selected for the DDC are properly connected to the transmitter/receiver pair, and that the transmitter, the receiver, and the display have power applied before power is applied to the video source. If all other devices are not turned on before the video source, the image may not appear.
Technical Points for Digital Video and Content Protection Encryption
•Digital Visual Interface (DVI) is a digital video format that was created by the computer industry in 1999.
•High Definition Multimedia Interface (HDMI™) is a multimedia format that was created by the consumer video industry in 2003.
The HDMI format is built onto the DVI format, adding digital audio and control while reducing the size of the connector.
The HDMI format is likely to replace the DVI format in the near future.
With passive adapters, the HDMI format is backward compatible with the DVI format.
•With Extron adapters and/or cables, the HDMI 201 fully supports either format, regardless of the connector type on the video source and display. See appendix A, "Reference Information," for part numbers.
•
HDCP is generated by video player hardware, enabled by the video content.
The HDCP key is transmitted with the Display Data Channel (DDC).
The DDC signal line was designed for the DDC’s low data rate; the HDCP key rate is much higher.
♦Without active buffering, an HDCP key signal can travel only a short distance. The display may properly receive the digital video signal, but not the HDCP key. Without the key, the display cannot decrypt the video signal. Symptoms of undecrypted video may include a flashing black or blue screen or “snow”.
♦With active buffering, an HDCP key signal can travel as far as other signals to ensure proper decryption.
♦The HDMI 201 actively buffers the HDCP key.
| HDMI 201 Tx/Rx • Installation and Operation |
