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VT-IPSD102H Manual
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5. System Modes and Connections
The VT-IPSD102H system operates in one of two modes: Encoder or Decoder. The VT-IPSD102H
system can be connected in either
a ‘1-to-1’ fashion, where one encoder is connected to one decoder,
or
a ‘1-to-many’ fashion, where one encoder is connected to many decoders.
The following chart shows possible combinations of video, audio and serial data transmission.
System Mode Video Audio Serial Data
Encoder Transmit Transmission/Receive Transmit/Receive
Decoder Receive Transmission /Receive Transmit/Receive
Therefore, the system modes are defined by the video communication and all system modes are
capable of bi-directional transmission of audio or serial data.

Topology
Generally, the encoder and the decoder are connected in a 1-to-1 mode. To support specific situations,
1-to-many connection is also supported.

1:1 Connection (Unidirection)
The most commonly used configuration is the 1 to 1 connection. An encoder is installed at a site
where video images can be transmitted and a decoder is installed at a center location to receive and
view the video images on analog monitor. Audio and serial data are transferred in either direction.
Encoder Decoder
Site
Remote Center