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Data Stream Mode
NOTE: Data stream mode is not supplied as a standard feature on VNC 200 Codec
devices.
In this mode, data received by an encoder is transported to the decoder, along with video
and audio, as part of the source stream. Data transport in this mode is unidirectional and
is capable of being recorded (and played back) by the VNM Recorder.
VN-MATRIX VN-MATRIX
(encoder) (decoder)
NETWORK
TCP RS-232RS-232 TCP
Data input to the encoder is sent to the
decoder as part of the source stream
along with video and audio
Both units are set to serial server mode
Serial ports on each VN 200 need not share a common baud rate. However, where a
large amount of data is sent from a high speed to a low speed data link, some form of
handshaking or flow control may be required to prevent buffer overflow on the output
device. Standard flow control methods are fully supported.
NOTE: No data will be transported until the decoder connects to the encoder stream.
To set up a serial data stream, see “Setting Up a Serial Data Stream.”
Setting Up a Serial Data Stream
1. Login to the web interface (see “System Configuration”).
2. From the Device List page click on the required encoder device.
3. From the Device page click the Peripherals tab to display the following:
Figure 38. Peripherals Page
4. Using the mode drop-down menu select the server option.
5. Change the other settings as required, then click the Save All tab.
VN-Matrix 200 Series • Serial Transport and Control Methodsl 49