參數(shù)資料
型號(hào): XRT83L314IB
廠(chǎng)商: EXAR CORP
元件分類(lèi): 數(shù)字傳輸電路
英文描述: 14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
中文描述: DATACOM, PCM TRANSCEIVER, PBGA304
封裝: TBGA-304
文件頁(yè)數(shù): 33/84頁(yè)
文件大?。?/td> 631K
代理商: XRT83L314IB
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
29
3.5.1
If ATAOS is selected by programming the appropriate global register, an AMI all ones signal will be transmitted
for each channel that experiences an RLOS condition. If RLOS does not occur, the ATAOS will remain inactive
until an RLOS on a given channel occurs. A simplified block diagram of the ATAOS function is shown in
Figure 23.
F
IGURE
23. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
ATAOS F
UNCTION
ATAOS (Automatic Transmit All Ones)
3.5.2
By setting the LIU to generate a NLUC, the transmitters will send out a repeating "00001" pattern. The output
waveform is shown in Figure 24.
F
IGURE
24. N
ETWORK
L
OOP
U
P
C
ODE
G
ENERATION
Network Loop Up Code
3.5.3
By setting the LIU to generate a NLDC, the transmitters will send out a repeating "001" pattern. The output
waveform is shown in Figure 25.
F
IGURE
25. N
ETWORK
L
OOP
D
OWN
C
ODE
G
ENERATION
Network Loop Down Code
RLOS
ATAOS
TAOS
TTIP
TRING
Tx
Network
Loop-Up
Code
1
1
0
0
0
0
0
0
0
0
1
Network
Loop-Down
Code
1
1
1
1
0
0
0
0
0
0
0
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