ATM Page
Picture 15.
Commander’s “ATM” page view.
The ATM page displays ATM/SDH (Asychronous Transfer
Mode / Synchronous Digital Hierarchy) connection status and
allows you to set all necessary VPI’s and VCI’s. VPI is the
Virtual Path Identifi er. VCI is the Virtual Channel Identifi er. VPI
is selectable between 1…255 and VCI between 1…65500.
These values compose a pair and it is not allowed to have two
similar identifi er pairs for different streams in one network.
Transport stream frame
In this frame you can set the received video & audio signals.
Transport stream is the MPEG-2 compressed bitstream that
consists of video & audio.
Return audio frame
This is the dual audio channel digitized and sent by Decoder
(not compressed, sampling frequency 35.2 Mhz). You can
enable the return channel by ticking the appropriate checkbox.
Resolution window is used to minimize the required audio
bandwidth over ATM network. Normal setting is 16 bit with
around 1.1 Mbps bandwidth. Selecting 14 bit reduces the ATM
bandwidth around 200 kbit/s.
Data channel frames 1…4
The four RS data channels are all individual and can be routed
independently through the ATM network.
16 IND2x2 Series User Manual rev001
