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.

  1. Four OC-3 ports are created when you create a channelized 4 × OC3 Deep Channel card.

  2. The user creates each required AU4 sub-channel.

  3. Each AU4 sub-channel implicitly contains three TUG3 groups.

  4. You can then configure each TUG3 to carry a TU3 frame

  5. Each TU3 frame is channelized into an independent E3 data channel and cannot be changed.

Figure 16-8: Channelized 4 × OC-3 port structure using AU4/TU3 sub-channels
Channelized 4 × OC-3 port structure using AU4/TU3 sub-channels