Hollywood Post Alliance Technology Retreat 2013 Ethernet ® AVB and Video

AVB Audio vs. Video  Audio is easy on Ethernet® AVB  1GbaseT = 300+ channels of audio  10GbaseT = channels of audio  At 48 kHz sampling  Video – Not so easy  1 GbaseT = one compressed channel of video  10 GbaseT = 6 HD-SDI bistreams  = p/60 “3G”  What about 4K video? 8K video?

Where is Ethernet Going?  10 gigabit copper  Available now  10GbaseT  625 MHz per pair  4 pair  100 meters  PAM 16  2 pulses v 256 only use 128

Where is Ethernet Going?  10G on fiber  10GbaseSR  850nm VCSL laser  Multimode /single mode (2 km)  10GbaseLR  1300nm  Single mode (10km+)

Where is Ethernet Going?  40 Gigabit Networking  Just approved on fiber  40GbaseT copper study group (Category 8)  Results by 2015  2 GHz per pair??  Overall foil shield/individual foil pair  Alien crosstalk +20 dB compared to 10GbaseT (Cat 6a)  4 pair??  30 meters??? (supports 90% of data center needs)

Where is Ethernet Going?  40 Gigabit Fiber  40GbaseSR4  VCSL laser  8 fiber = 4 lanes each direction  12-fiber  40GbaseLR4  10G x 4 lanes x 2 directions

Where is Ethernet Going?  100 Gigabit networking  Committee formed  100GbaseT  Probably beyond the capability of copper  100G Fiber  100GbaseLR10  25GHz per fiber  WDM 4 wavelengths  OR 10G fiber x 10 lanes x 2 directions = 20 fibers

Where is Video Going  HD-SDI  1.5 GHz clock  Occupied bandwidth 750 MHz (Nyquist)  Tested to third harmonic: 2.25 GHz  3G-SDI (1080p/60)  3 GHz clock  Occupied bandwidth 1.5 GHz (Nyquist)  Tested to third harmonic: 4.5 GHz

Where is Video Going  4K (in process)  GHz clock (12 GHz)  Occupied bandwidth to 6.0 GHz (Nyquist)  Copper coax cable: not considered??  Tested to third harmonic : 16 to 18 GHz  Fiber – single mode  8 K  No standards established  24 GHz clock? 12 GHz Nyquist? 36 GHz testing?

Bandwidth on Copper UTP Based on Third Harmonic/Uncompressed 10GbaseT40GbaseT100GbaseT HD G2822 4K025

Bandwidth on Copper UTP Based on Clock/Uncompressed 10GbaseT40GbaseT100GbaseT HD G K025

Multi Channel Digital Video  SMPTE work  20 Gb/s on fiber  Multiple 1.5 Gb/s HD bit streams combined?  Bit depth: 8-bit? 10-bit? 12-bit? 14-bit?  Coding: 4:4:4? 4:2:2?

How to Win an Emmy  Make these two work together  High-bandwidth Ethernet  High-bandwidth Video  Channel counts  256 x 256 video router now commonplace  128-port Ethernet switch is HUGE  Analog: Vertical blanking interval  How do you find a frame of video in Ethernet?

Who Wants AVB Now?  Automotive Industry  Less weight, simple networking  All sensors, camera, audio  2 ms latency is 2.5 inches at 70 MPH  Airline Industry  Light weight, simple networking  Multiple channel consumer video

Steve Lampen