Data Sheet
June 2002
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
12 28-Channel Framer Registers (continued)
Table 397. FRM_PMLR4, Performance Monitor Link Register 4 (COR) (continued)
Address* Bit
0x8LP83 12
Name
Function
Reset
Default
FRM_LSFA
Loss of Signaling Frame Alignment. DS1: A 1 indicates that
the receive framer is in a loss of signaling superframe alignment
in the SLC-96 framing format. This bit is a 0 in all other DS1
framing modes. SLC-96 signaling alignment is assumed to have
been lost when multiframe alignment is lost.
0
CEPT: A 1 indicates the loss of the CEPT time slot 16 channel
associated signaling multiframe structure. CEPT time slot 16
multiframe alignment is assumed lost when two consecutive
time slot 16 multiframe alignment patterns (0000) are received
in error, or when time slot 16 is all zeros for one or two multi-
frames. Time slot 16 multiframe alignment is assumed to have
occurred when the first time slot 16 multiframe alignment pat-
tern is found in time slot 16 and, optionally, the preceding time
slot 16 contained at least one. (G.732, Section 5.2; O.162, Sec-
tion 2.1.3.) This is the time slot 16 align input from the signaling
block.
11
FRM_OAIS
Other Alarm Indication Signals. CEPT RTS16AIS: A 1 indi-
cates the receive framer detected time slot 16 AIS. Time slot 16
AIS is defined to be fewer than three zeros in each of two con-
secutive time slot 16 multiframe periods (G775, Section 5.1.1).
This is the time slot 16 AIS input from the signaling block.
0
* See Table 393 on page 279 for values of L and P.
Agere Systems Inc.
281
ETC [ ETC ]
