CN8223 Datasheet, PDF (55/161 Pages) Conexant Systems, Inc – ATM Transmitter/Receiver with UTOPIA Interface

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
2.0 Functional Description
2.4 Status and Alarms
2.4.3 Alarm Detection
The internal framers contain status indicators to obtain alarm information for link
maintenance. Table 2-13 shows the error indications by line mode. This table is
repeated as Table 3-17, in Chapter 3.0.
Table 2-13. Status Indications for All Modes (Register 0x38)
Bit
STS-1/STS-3c/
STM-1
Internal DS3
G.832 E3/E4
15 Line FEBE Error
0
14 One-Second Count One-Second Count
13 Signal Label
Mismatch
Invalid FEBE
12 Path FERF Error
FEBE All 1s
11 Path FEBE Error
PLCP FEBE Error
10 Summary BIP Error PLCP BIP Error
9 Line FERF
PLCP Frame Error
8 LOC
PLCP Yellow/LOC
7 STS LOF 2–3
PLCP LOF 2–3
6 STS LOF
PLCP LOF
5 STS OOF
PLCP OOF/LOC
4 Path Yellow
DS3 X-bit Yellow
3 Path AIS
DS3 Idle Code
2 Line AIS
DS3 AIS
1 STS LOP
DS3 OOF
0 LOS (Input)
LOS (Input)
NOTE(S): “x” means content should be disregarded.
0
One-Second Count
Payload Type
Mismatch
MA FERF
MA FEBE
EM BIP Error
x
LOC
E3/E4 LOF 2–3
E3/E4 LOF
E3/E4 OOF
x
x
E3/E4 AIS
x
LOS (Input)
Internal G.751 E3
0
One-Second Count
Invalid FEBE
Ext. Framer
(57 octet)
0
One-Second Count
Invalid FEBE
FEBE All 1s
PLCP FEBE Error
PLCP BIP Error
PLCP Frame Error
PLCP Yellow
PLCP LOF 2–3
PLCP LOF
PLCP OOF
E3 A-bit Yellow
x
E3 AIS
E3 OOF
LOS (Input)
FEBE All 1s
PLCP FEBE Error
PLCP BIP Error
PLCP Frame Error
PLCP Yellow
PLCP LOF 2–3
PLCP LOF
PLCP OOF
x
x
x
x
LOS (Input)
100046C
Conexant
2-21