參數(shù)資料
型號: TMUX03155
英文描述: TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer
中文描述: TMUX03155 STS-3/STM-1(非盟- 4)復(fù)用器/解復(fù)用器
文件頁數(shù): 34/120頁
文件大?。?/td> 1542K
代理商: TMUX03155
34
Agere Systems Inc.
Data Sheet
April 2001
TMUX03155 STS-3/STM-1 (AU-4) Multiplexer/Demultiplexer
Maintenance Functions
(continued)
Transmit Functions
(continued)
Path - Trace Byte (J1)—AU-4 Mode Only
The device will continuously insert a 64-byte sequence (
TJ1DINS[64—1][7:0], 0x80—0xBF
) into the outgoing
STM-1 (AU-4) signal when the
TJ1INS
signal is active; otherwise, all zeros will be inserted into this byte.
Path - Signal Label Byte (C2)—AU-4 Mode Only
The device will allow data to be inserted into the outgoing C2 byte under software control (
TC2DINS[7:0], 0x46
).
Path - G1 Status Byte (PFEBE (REICNT))—AU-4 Mode Only
The G1 byte contains the PFEBE (B3 errors) as shown in Table 13.
The device will insert PFEBE in the transmitted G1 byte whenever there are bit errors in the received B3 byte. This
function can be inhibited (
TPFEBEINH, 0x3E
) and the default value inserted, either all ones (SDH) or all zeros
(SONET). The device can insert a continuous error into the G1 PFEBE[3:0] byte under user control (
TPFEBEEINS,
0x4D
).
The values for PFEBE are summarized in Table 14.
Table 13. G1 Byte—AU-4 Mode Only
MSB
(7)
6
5
4
3
2
1
LSB
(0)
PFEBE[3:0]
Valid values (0 to 8) all others
indicate no errors
RDI-P
111 (SDH) or
000 (SONET)
Table 14. PFEBE Values
Section or Line FEBE
Number of B3 Bit Errors in
the Receive Signal
0000
0001
0010
. . .
0111
1000
1001
. . .
1111
0 (no errors)
1
2
. . .
7
8
No errors
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