參數(shù)資料
型號: PSB21911
廠商: SIEMENS A G
元件分類: 數(shù)字傳輸電路
英文描述: ISDN Echocancellation Circuit for Terminal Applications IEC-Q TE
中文描述: DATACOM, ISDN ECHO CANCELLER
文件頁數(shù): 92/164頁
文件大?。?/td> 1401K
代理商: PSB21911
PSB 21911
PSF 21911
S/G Bit and BAC Bit in TE Mode
Semiconductor Group
92
11.97
Figure 31 D-Channel Request by the Terminal
ITD10200
ELIC
AFE/DFE
IEC-Q
IEC-Q TE
TE Mode
U
k0
C/I =
xxxx
1
=
BAC
S/G = 1
D-Channel Transparent
1100
=
C/I
BAC = 0
HDLC occupied by other Terminal:
D-Channel fied to "0"
Delay TD1
Delay TD2
"00" on D-Channel
EOC 25H
Delay TD2
HDLC assigned:
C/I = 1000
H
27
EOC
HDLC-Controller available
Transparent;
=
S/G
HDLC-Frame on D-Channel
D-Channel
Transparent
Frame
HDLC
BAC = 1
EOC 25H
1100
=
C/I
HDLC ready:
Delay TD2
D-Channel Transparent
1;
=
S/G
"stop"
R
IOM -2
R
R
IOM -2
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