Nokia 7705 - Page 263

Basic System Configuration Guide System Management
Edition: 01 3HE 11010 AAAC TQZZA 263
Notes:
1. As the received QL on the port drops from prc/prs to sec/eec1 (row 1 to row 8), the quality level of
the internal SSU drops from “Best quality” to “Lowest quality”.
Table 31 Quality Level (QL) Values by Interface Type (E1 and T1)
SSM Quality Level Value Received on
Port
Internal Relative
Quality Level
SSM Quality Level Value to be
Transmitted
E1 interface T1 interface (ESF) E1 interface T1 interface (ESF)
0010 (prc) 00000100
11111111 (prs)
Best quality
1
0010 (prc) 00000100
11111111 (prs)
— 00001000
11111111 (stu)
0100 (ssu-a) 00001000
11111111 (stu)
— 00001100
11111111 (st2)
0100 (ssu-a) 00001100
11111111 (st2)
0100 (ssu-a) 01111000
11111111 (tnc)
0100 (ssu-a) 01111000
11111111 (tnc)
— 01111100
11111111 (st3e)
1000 (ssu-b) 01111100
11111111 (st3e)
1000 (ssu-b) — 1000 (ssu-b) 00010000
11111111 (st3)
— 00010000
11111111 (st3)
1011 (sec) 00010000
11111111 (st3)
1011 (sec) — Lowest quality
qualified in
QL-enabled mode
1011 (sec) 00100010
11111111 (smc)
— 00100010
11111111 (smc)
See note
2
1111 (dnu) 00100010
11111111 (smc)
1111 (dnu) 00110000
11111111 (dus)
See note
2
1111 (dnu) 00110000
11111111 (dus)
Any other N/A QL-INVALID 1111 (dnu) 00110000
11111111 (dus)
— — QL-FAILED 1111 (dnu) 00110000
11111111 (dus)
— — QL-UNC 1011 (sec) 00010000
11111111 (st3)