The K2 byte indicates the bridging actions performed at the line-terminating equipment (LTE), the provisioned architecture and mode of operation.
The bit assignment for the K2 byte is listed in Table 1.
| Bits 1 to 8 | Function |
|---|---|
1 to 4 |
Channel number. The 7750 SR supports only values of 0 and 1. |
5 |
0 Provisioned for 1+1 mode 1 Provisioned for 1:n mode |
6 to 8 |
111 Line AIS 110 Line RDI 101 Provisioned for bidirectional switching 100 Provisioned for unidirectional switching 011 (reserved for future use) 010 (reserved for future use) 001 (reserved for future use) 000 (reserved for future use) |