Nokia 7210 Configuration Manual page 278

System Management
The internal quality level of QL-UNKNOWN is used to differentiate from a received
QL-STU code, but is equivalent for the purposes of QL selection.
Table 32
values received on port.
Synchronization Message Coding and Source Priorities
Table 32
SSM value received on port
SDH interface
SyncE interface in
SDH mode
0010 (prc)
0100 (ssua)
1000 (ssub)
1011 (sec/eec1)
1111 (dnu)
278
lists the synchronization message coding and source priorities for SSM
SONET Interface
SyncE interface in
SONET mode
0001 (prs)
0000 (stu)
0111 (st2)
0100 (tnc)
1101 (st3e)
1010 (st3/eec2)
1100 (smc)
1110 (pno)
1111 (dus)
Use subject to Terms available at: www.nokia.com
7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
E1 interface T1 interface (ESF)
0010 (prc) 00000100 11111111
(prs)
00001000 11111111
(stu)
00001100 11111111
(ST2)
0100 (ssua) 01111000 11111111
(TNC)
01111100 11111111
(ST3E)
1000 (ssub)
00010000 11111111
(ST3)
1011 (sec)
00100010 11111111
(smc)
00101000 11111111
(st4)
01000000 11111111
(pno)
1111 (dnu) 00110000 11111111
(dus)
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Configuration Guide
Internal Relative
Quality Level
1. Best quality
2.
3.
4.
5.
6.
7.
8. Lowest quality
qualified in QL-
enabled mode
9.
10.
11.
12.
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