0x30 V5 ID, User Port, Link, Timeslot

Byte | AIB Field Description
--- | ---
2 | Address Element: 0x30
3 | Data Length 0x06
4 | Data[0] V5 ID (MSB)
5 | Data[1] V5 ID (LSB)
6 | Data[2] Link ID
7 | Data[3] Timeslot
8 | Data[4] User Port (MSB )
9 | Data[5] User Port (LSB)

See Address Information Block.
The information in an AIB that follows the header, down to the data field. An AIB can have one or more Address Elements. AEs correspond to Span, Channel, and SS7 Link.
Most Significant Bit
Least Significant Bit
The point in the Excel platform where a DS0 connects to a network. Also known as a "socket."