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C1640M-B (3/06) 21
Examples of Worse-Case Bandwidth Calculation in Live Video Mode
Example 1: WS5050 Endura Workstation—Live Video Stream
Each WS5050 can display 16 simultaneous playback streams.
To calculate the worse-case bandwidth for the WS5050:
1. Find the bandwidth.
B
W
= N
S
x B
R
= 16 x 1 Mbps = 16 Mbps
2. Find the overhead.
O
H
= 25% x B
W
= 16 x 1 Mbps x 25% = 4 Mbps
3. Find the worse-case bandwidth.
B
WC
= (N
S
x B
R
) + O
H
= 16 Mbps + 4 Mbps = 20 Mbps
Example 2: VCD5000 Video Console Display—Live Video Stream
The Model VCD5001 has one monitor output and can display up to 16 simultaneous live video streams. A Model VCD5004 has four monitor
outputs and can display 64 simultaneous live video streams.
To calculate the worse-case bandwidth for the VCD5004:
1. Find the bandwidth.
B
W
= N
S
x B
R
= 64 x 1 Mbps = 64 Mbps
2. Find the overhead.
O
H
= 25% x B
W
= 64 Mbps x 25% = 16 Mbps
3. Find the worse-case bandwidth.
B
WC
= (N
S
x B
R
) + O
H
= 64 Mbps + 16 Mbps = 80 Mbps
Example 3: NET5301R Decoder—Live Video Stream
Each Encoder can playback 4 simultaneous video streams.
To calculate the worse-case bandwidth for NET5301R Decoder:
1. Find the bandwidth.
B
W
= N
S
x B
R
= 4 x 1 Mbps = 4 Mbps
2. Find the overhead.
O
H
= 25% x B
W
= 4 Mbps x 25% = 1 Mbps
3. Find the worse-case bandwidth.
B
WC
= (N
S
x B
R
) + O
H
= 4 Mbps + 1 Mbps = 5 Mbps