User guide

Network Engineering Video Services provided by ADSL
3-9
Telesyn Service Guide (Optimizing Video Services)
Totals Maximum Total Video Rate 7,385,802 bps (((Video Rate+Audio
Rate+Encoder Overhead Rate+IP
Frame Overhead Rate)*(1+Video
Burst Factor/100))*Number of
STB)+EPG Rate
Minimum Total Video Rate 6,996,002 bps (Video Rate+Audio Rate+Encoder
Overhead Rate+IP Frame Overhead
Rate)*Number of STB)
Total Voice Rate 0 bps
Maximum Data Burst Rate 605,200 bps Maximum Possible when video rate
is not bursting to maximum & no
EPG transfer
Minimum ADSL16 Downstream
Rate
8,484,042 bps ((1+ATM Overhead)*(Total Mini-
mum Encoded Stream+Guaranteed
Data Rate+(Voice BW*Number of
Phones))*Number of STBs
Port Mindown provisioned Rate 8,512,000 bps = CEILING(k,32000)
* Encoder Overhead =
Video PID 0 PAT (Program Associ-
ation Table)
153,660 Constant
Video PID 100 PMT (Program Map
Tables)
153,660 Constant
Total Encoded Stream (Min) 3,498,001 ((Encoder Video Rate+Total
Encoder Audio Rate)*(1+(IP Frame
Overhead/Video Packet Payload
Size)))+Encoder Overhead Rate
Total Encoded Stream (Max) 3,657,535 ((Encoder Video Rate+Total
Encoder Audio Rate)*(1+Video
Burst factor/100)))*(1+(IPFrame
Overhead/Video Packet Payload
Size)))+Encoder Overhead Rate
TABLE 3-2 Calculating ADSL16 Loop Values (Continued)
Service Attribute (Used in Calculations) Value Notes