Preliminary Data Sheet
May 2001
TMXF28155/51 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
379
Agere Systems Inc.
17 TMUX Functional Description
(continued)
Table 524. STS Signal Label Defect Conditions
TMUX_FORCEC2DEF[2:0] will force path payload label mismatch defects on those conditions that are shown on
in
Table 524
above.
The continuous N-times detection counter(s) will be reset to 0 upon the transition of the framer into the out of frame
state.
RDI-P Detection.
A remote defect indication-path (RDI-P) signal indicates to STS path terminating equipment
(PTE) that its peer STS PTE has detected a defect on the signal that it originated. The TMUX supports a 1-bit
RDI-P code as well as a 3-bit enhanced RDI-P code; the mode is selectable using the TMUX_REPRDI_MODE
(
Table 95 on page95
). If TMUX_REPRDI_MODE = 0, then the 1-bit code is supported, and if
TMUX_REPRDI_MODE = 1, then the 3-bit enhanced path RDI code is supported.
The TMUX monitors for a 1-bit RDI-P code in G1[3] or a 3-bit enhanced remote defect indication (RDI-P) condition
in G1[3:1]. The current value of the path RDI state will be detected after a number of consecutive occurrences
determined by the value in TMUX_CNTDRDIP[3:0] (
Table 99 on page 99
). The current value(s) will be stored in
TMUX_RDIPMON[1
—
3][2:0]] (
Table 104 on page 101
), for nonenhanced RDI-P mode, and the current value(s) will
be stored in TMUX_RDIPMON[1
—
3][2:0], for enhanced RDI-P mode. Any change to TMUX_RDIPMON[1
—
3][2:0]
will be reported in TMUX_RRDIPD[1
—
3] with interrupt mask bits,TMUX_RRDIPM[1
—
3] (
Table 87 on page89
).
The continuous N-times detection counter(s) will be reset to 0 upon the transition of the framer into the out of frame
state.
REI-P Detection.
Bits [7:4] of the G1 byte are allocated for use as a path remote error indication function (REI-P).
I
For STS-1 and STM-1 signals, bits [7:4] of the G1 byte are allocated for REI-P which conveys the error count
detected by the PTE (using the path BIP-8 code B3) back to its peer PTE as shown in
Table 525
.
Provisioned STS PTE
Functionality, Expected C2
Any Equipped Functionality
Any Equipped Functionality
Equipped
—
Nonspecific
Any Payload Specific Code
Received Payload Label
(C2 in hex)
Unequipped (00)
Equipped
—
Nonspecific (01)
Any Value (02 to E0, FD to FE)
The Same Payload Specific
Code (02 to E0, FD to FE)
A Different Payload Specific
Code (02 to E0, FD to FE)
PDI, 1 to 27 VTx Defects
(E1 to FB)
PDI, 1 to 27 VTx Defects
(E1 to FB)
Defect
TMUX_FORCEC2DEF = 1
(
Table 97
)
No Change
No Change
No Change
No Change
TMUX_RUNEQP
None
None
None
Any Payload Specific Code
TMUX_RPLMP
No Change
Equipped
—
Nonspecific (01) or
VT-Structured STS-1 (02)
Any Payload Specific Code
Except VT-Structured
STS-1 (02)
Any Equipped Functionality
None
TMUX_RPLMP
TMUX_RPLMP
No Change
PDI, 28 VT1.5 Defects or 1
Non-VT Payload Defect (FC)
Reserved (FF)
None
TMUX_RPLMP
Any Equipped Functionality
None
TMUX_RPLMP