Definitions for "Superframe"
Keywords:  sonet, frame, consecutive, bundled, sts
The framing format used in D4 transmission consisting of 12 consecutive frames. The 12 framing bits mark frame boundaries and contain the alignment pattern.
any structure made of multiple frames; SONET recognizes superframes at the DS–1 level (D4 and extended superframe) and at the VT (500 µs STS superframes)
12 frames are bundled in a certain format and transmitted. Used in T1 mode. Up to Top