SDH TU3 payload
Overview
The following example, illustrated in Figure 16-8, Channelized 4 × OC-3 port structure using AU4/TU3 sub-channels , shows the channelization sequence for a TU3 payload on a 4 × OC3 Deep Channel card.
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Four OC-3 ports are created when you create a channelized 4 × OC3 Deep Channel card.
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Each TU3 frame is channelized into an independent E3 data channel and cannot be changed.