Preliminary Data Sheet
May 2001
TMXF28155/51 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
503
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 586
shows the functions provided by the performance monitor function, identifies the associated status regis-
ter bits and event counter register, and establishes the functions validity in particular framing modes.
Table 586. 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 373
)).
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 385
)
All modes
5
FRM_OOF (
Table 385
)
All modes
6
FRM_LTS0MFA
(
Table 385
)
FRM_TS0MFABE
(
Table 385
)
FRM_AUXP (
Table 386
)
CEPT CRC-4 only
7
CEPT CRC-4 only
8
CEPT CRC-4 only
9
FRM_IDLEID (
Table 386
)
All modes except
CEPT CRC-4
All modes
10
FRM_AIS (
Table 385
)
11
FRM_OAIS (
Table 385
)
All modes except
CEPT-CRC4
All modes
12
FRM_RAI (
Table 385
)
13
FRM_ORAI (
Table 385
)
ESF and J-ESF
only
CEPT CRC-4 only
14
FRM_OAIS (
Table 385
)
15
FRM_ORAI (
Table 385
)
CEPT CRC-4 only
16
FRM_LTFA (
Table 386
)
CEPT CRC-4 only