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sequenced data PDU (ATM) (SD-PDU)

The Sequenced Data PDU( SD-PDU) is one of sixteen Protocol Data Units (PDU) of the Service Specific Connection Oriented Protocol( SSCOP), which represents the Service Specific Convergence Sublayer ( SSCS) of the AAL layer for signaling channels.

The SD-PDU is used to transmit the sequentially numbered Physical Data Units (PDU) over the link using the Service Specific Connection Oriented Protocol.


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