tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 276

• Manufacturer Part Number: tmxf28155
• Description: Tmxf28155 Super Mapper 155/51 Mbits/s Sonet/sdh X28/x21 Ds1/e1
• Manufacturer: ETC-unknow

155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
12 28-Channel Framer Registers
Table 385. FRM_PMLR4, Performance Monitor Link Register 4 (COR) (continued)
* See
276
Address*
0x8LP83
Table 381
for values of L and P .
Bit
12
11
FRM_LSFA
FRM_OAIS
Name
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.
CEPT: A 1 indicates that the loss of the CEPT time slot 16
channel associated signaling multiframe structure. CEPT time
slot 16 multiframe alignment is assumed lost when two consec-
utive time slot 16 multiframe alignment patterns (0000) are
received in error, or when time slot 16 is all zeros for one or two
multiframes. Time slot 16 multiframe alignment is assumed to
have occurred when the first time slot 16 multiframe alignment
pattern is found in time slot 16 and optionally, the preceding
time slot 16 contained at least one. (G.732 section 5.2; O.162
section 2.1.3.) This is the time slot 16 align input from the sig-
naling block.
Other Alarm Indication Signals. DS1 AIS-CI: A 1 indicates the
receive framer detected alarm indication signal customer instal-
lation (AIS-CI). AIS-CI is a repetitive pattern with a 1.26 s
period. It consists of 1.11 s of unframed all ones interleaved
with 0.15 s of all ones modified by the AIS-CI signature pattern.
The AIS signature pattern is 01111100 11111111 (transmitted
right-to-left at 386-bit intervals). It takes 4 ms to detect AIS-CI.
(T1.231 section D.1.3.)
CEPT RTS16AIS: A 1 indicates the receive framer detected
time slot 16 AIS. Time slot 16 AIS is defined to be fewer than
three zeros in each of two consecutive time slot 16 multiframe
periods, (G775 section 5.1.1). This is the time slot 16 AIS input
from the signaling block.
(continued)
Function
Agere Systems Inc.
June 2001
May 2001
Default
Reset
0
0