TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
510
Agere Systems Inc.
21 28-Channel Framer Block Functional Description
(continued)
21.19 Performance-Monitoring Functional Integration into Superframer
The framer monitors the recovered line data for alarm conditions and errored events, and then presents this infor-
mation to the system through the microprocessor registers. To a lesser degree of importance, the framer also mon-
itors the receive system data when in the switching mode and presents the information to the system through the
microprocessor registers.
In the transport mode, both directions are monitored for alarm conditions and error events.
Table
shows the functions provided by the performance monitor function, identifies the associated status register
bits and event counter register, and establishes the functions validity in particular framing modes.
Table 598. Performance Monitor Functional Descriptions
Function
Description
Register or Bit Name
Valid Framing
Modes for
Functions
ESF and J-ESF only
1
Performance report messages (PRMs) as per G.704
Section 2.1.3.1.3.3, G.963, T1.231 Section 6.3, and
T1.403 Section 9.4.2.
Provides status for errored seconds, bursty errored
seconds, severely errored seconds, and at ET,
ET-RE, NT, and NT-RE.
Maintains a count of errored seconds, bursty errored
seconds, severely errored seconds, and at the ET.
Provides a status indication for a loss of signaling
frame alignment condition.
Provides a status indication for an out of frame con-
dition.
Provides a status indication for a loss of time slot 0
CRC-4 multiframe alignment.
Provides a status indication for a time slot 0 CRC-4
multiframe alignment signal bit error.
Provides a status indication for auxiliary pattern
detection.
Provides a status indication for detection of the DS1
idle signal.
Provides a status indication for detection of an alarm
indication signal.
Provides a status indication for detection of an alarm
indication signal at the customer installation (AIS-CI).
Provides a status indication for detection of remote
alarm indication.
Provides a status indication for detection of remote
alarm indication at the customer installation (RAI-CI).
Provides a status indication for detection of time slot
16 AIS (FRM_R_TS16AIS (
Table 385 on page 274
)).
Provides a status indication for detection of remote
multiframe alarm in time slot 16 (RTS16MFA).
Provides a status indication for the loss of CEPT
biframe alignment (LBFA).
—
2
—
All modes
3
—
All modes
4
FRM_LSFA
(
Table 397 on page 280
)
FRM_OOF
(
Table 397 on page 280
)
FRM_LTS0MFA
(
Table 397 on page 280
)
FRM_TS0MFABE
(
Table 397 on page 280
)
FRM_AUXP
(
Table 398 on page 287
)
FRM_IDLEID
(
Table 398 on page 287
)
FRM_AIS
(
Table 397 on page 280
)
FRM_OAIS
(
Table 397 on page 280
)
FRM_RAI
(
Table 397 on page 280
)
FRM_ORAI
(
Table 397 on page 280
)
FRM_OAIS
(
Table 397 on page 280
)
FRM_ORAI
(
Table 397 on page 280
)
FRM_LTFA
(
Table 398 on page 287
)
All modes
5
All modes
6
CEPT CRC-4 only
7
CEPT CRC-4 only
8
CEPT CRC-4 only
9
All modes except
CEPT CRC-4
All modes
10
11
All modes except
CEPT-CRC4
All modes
12
13
ESF and J-ESF only
14
CEPT CRC-4 only
15
CEPT CRC-4 only
16
CEPT CRC-4 only