JVC VN-V225U series 사용자 설명서

4

Only 1 audio data stream can be received. Data volume 
for 1 audio stream is 64 kbps. Audio data volume may be 
calculated using the following formula.
64 kbps x no. of streams
The number of streams is the total number of streams 
sent via TCP (number of clients), streams sent via 
multicast, and stream received by camera
(Example) When camera sends out 2 audio streams and 
receives 1 audio stream, data volume will be as follows.
64 kbps x 3 = 192 kbps

The maximum number of distributions for camera is 
determined by the settings as well as requirements 
from the client.
For JPEG distribution, you can select either “Frame Rate 
Priority” mode or “Client number Priority” mode. “Frame 
Rate Priority” mode distributes JPEG images according 
to the frame rate requested by the client. The maximum 
number of distributions is determined based on the 
highest bit rate within the distribution streams. For “Client 
number Priority” mode, if there are requests from multiple 
clients, JPEG images are distributed in a lower frame rate 
than that requested to cater to multiple clients. It can 
accept 20 distribution requests as the maximum number 
of clients.
䡵 When Frame Rate Priority Mode is Selected
JPEG images are distributed at the frame rate requested 
by the client. 
When a distribution request that exceeds the maximum 
number of distributions is received, this request is denied. 

● When only JPEG images are distributed

For example, if Client A requests for JPEG at 1 Mbps, 
while Client B requests for JPEG at 5 Mbps, additional 2 
streams (total 4 streams) of distribution are possible for 
request below 5 Mbps.
Maximum number of distributions when only 
JPEG data is distributed

● When both JPEG and MPEG4 images are distributed

When both JPEG and MPEG4 images are distributed 
simultaneously, distribution up to two clients for JPEG 
and three clients for MPEG4 respectively is possible. 
However, distribution requests that exceed a total bit rate 
of 20 Mbps will be denied.
Maximum number of distributions when JPEG and 
MPEG4 data is distributed

● When only MPEG4 images are distributed

The maximum number of distributions is determined by 
the preset bit rate. When a distribution request that 
exceeds the maximum number of distributions is 
received, this request is denied.
When distributing only MPEG4 data

䡵 When Client number Priority Mode is Selected

● When only JPEG images are distributed

If the distribution request would be accepted in the frame 
rate priority mode, distribution works in the same way as 
frame rate priority mode, where JPEG images are 
distributed at the frame rate requested by the client. If the 
distribution request would be denied in the frame rate 
priority mode, the frame rate is controlled such that the 
maximum bit rate is as shown in the following table, to 
accept distribution requests from up to 20 clients. For 
example, if Client A and B request for JPEG at 10 Mbps, 
and Client C requests for JPEG at 5 Mbps, the frame rate 
will be reduced such that the distribution bit rate to each 
client is less than 5 Mbps.
Maximum bit rate when only JPEG data is 
distributed

1 Mbps and 
below

20

20 Mbps

5 Mbps and 
below

4

20 Mbps

10 Mbps and 
below

2

20 Mbps

Larger than 
10 Mbps

1

Maximum 
configurable 
value 
(24 Mbps)

2

3

20 Mbps and 
below

0.6 Mbps and 
below

20

12 Mbps

3 Mbps and 
below

4

12 Mbps

4 Mbps and 
below

3

12 Mbps

6 Mbps and 
below

2

12 Mbps

Larger than 
6 Mbps

1

Maximum 
configurable value 
(8 Mbps)

Current number of 
distributions

Maximum bit rate

2 and below

10 Mbps

20 Mbps

3 to 4

5 Mbps

20 Mbps

5 to 20

1 Mbps

20 Mbps