Hi Mahesh,
-------------
Check pg 17 of the following doc
http://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/camera/precisionhd/user_guide/precisionhd_1080p-720p_camera_user_guide.pdf
Camera Cables
HDMI cable
The HDMI cable delivered with the camera is 5 meters.
Maximum length is 15 meter with a category 2 certified good quality HDMI cable. This cable can be used with the C20, C40, C60 and C90 Codecs.
---------------
Check pg 11 of the following doc
http://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/articles_doc/telepresence_endpoints_knowledge_base_articles.pdf
307:What is the maximum length of the HDMI cable connecting a codec to a monitor?
The HDMI cable going from the Cisco TelePresence Codec to the monitor can be up to 15 meters/50 feet long. This requires a good quality category 2 cable. Longer extensions are possible using HDMI/DVI extenders.
Applies to the following products:
SX10 Quick Set
SX20 Quick Set
SX80
Codec C20
Codec C40
Codec C60
Codec C90
-----------------
HTH,
Atul
