frame relaying service data unit (FSDU)
Telecommunications
The data unit exchanged at the functional boundary between the core function of Q.921 and the end-to-end protocol implemented above the core functions of Q.921. [T1.606-1990]
The data unit exchanged at the functional boundary between the core function of Q.921 and the end-to-end protocol implemented above the core functions of Q.921. [T1.606-1990]