Table 19: K1 Byte, Bits 5-8 (And K2 Bits 1-4), Channel Number Code Assignments; Table 20: K2 Byte Functions - Alcatel-Lucent 7750 Configuration Manual

Table 19

Table 19: K1 Byte, Bits 5-8 (and K2 Bits 1-4), Channel Number Code Assignments

Channel Number
K2 Byte
The K2 byte is used to indicate 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 20: K2 Byte Functions

Bits 1-8
7750 SR Interface Configuration Guide
displays bits 5-8 of a K1 byte and K2 Bits 1-4 and the channel number code assignments.
Code
0 Null channel.
SD and SF requests apply to conditions detected on the protection line.
For 1+1 systems, Forced and Request Switch requests apply to the
protection line.
Only code 0 is used with Lockout of Protection request.
1 — 14 Working channel.
Only code 1 applies in a 1+1 architecture.
Codes 1 through n apply in a 1:n architecture.
SD and SF conditions apply to the corresponding working lines.
15 Extra traffic channel.
May exist only when provisioned in a 1:n architecture.
Only No Request is used with code 15.
1 — 4 Channel number. The 7750 SR supports only values of 0 and 1.
5 0
1
6-8 111
110
101
100
011
010
001
000
Channel and Notes
Table 20.
Provisioned for 1+1 mode.
Provisioned for 1:n mode.
Line AIS
Line RDI
Provisioned for bi-directional switching
Provisioned for uni-directional switching
(reserved for future use)
(reserved for future use)
(reserved for future use)
(reserved for future use)
Interface Configuration
Function
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