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參數(shù)資料
| 型號(hào)： | XRT73L04 |
| 廠商： | Exar Corporation |
| 英文描述： | 4 Channel E3/DS3/STS-1 Line Interface Unit(4通道 E3/DS3/STS-1線接口單元) |
| 中文描述： | 4頻道E3/DS3/STS-1線路接口單元（4通道E3/DS3/STS-1線接口單元） |
| 文件頁數(shù)： | 48/62頁 |
| 文件大?。?/td> | 781K |
| 代理商： | XRT73L04 |
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XRT73L04
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. P1.0.5
á
PRELIMINARY
44
.
N
OTE
:
The RNEG(n) output pin is internally tied to Ground
whenever this feature is implemented.
3.7
S
HUTTING
OFF
THE
R
ECEIVE
S
ECTION
The Receive Section of each channel in the
XRT73L04 can be shut off. This feature may come in
handy in some redundant system designs. Particu-
larly, in those designs where the Receive Termination
within the Secondary LIU Line Card has been
switched-out and is not receiving any traffic in parallel
with the Primary Line Card. In this case, having the
LIU on the Secondary Line Card consume the normal
amount of current is a waste of power. This feature
can permit powering down the Receive Section of the
LIU’s on the Secondary Line Card which reduces
their power consumption by approximately 80%
a. Operating in the Hardware Mode
Shut off the Receive Sections by pulling the RxOFF
input pin “High". Turn on the Receiver Sections by
pulling the RxOFF input pin to “Low".
b. Operating in the HOST Mode
Shut off the Receive Sections by writing a "1" into the
RxOFF bit-field within Command Register CR3-(n).
COMMAND REGISTER CR3-(N)
Turn on the Receive Section of Channel(n) by writing
a "0" into the RxOFF bit-field within Command Regis-
ter CR3-(n).
F
IGURE
29. T
HE
TYPICAL
INTERFACE
FOR
THE
T
RANSMISSION
OF
D
ATA
IN
A
S
INGLE
-R
AIL
F
ORMAT
FROM
THE
R
ECEIVE
S
ECTION
OF
THE
XRT73L04
TO
THE
R
ECEIVING
T
ERMINAL
E
QUIPMENT
Terminal Equipment
(E3/DS3 or STS-1
Framer)
Exar E3/DS3/STS-1 LIU
Receive
Logic
Block
RxPOS
RxClk
RPOS
RxClk
F
IGURE
30. T
HE
BEHAVIOR
OF
THE
RPOS
AND
R
X
C
LK
OUTPUT
SIGNALS
WHILE
THE
XRT73L04
IS
TRANSMIT
-
TING
S
INGLE
-R
AIL
DATA
TO
THE
R
ECEIVING
T
ERMINAL
E
QUIPMENT
RxClk
RPOS
D4
D3
D2
D1
D0
(SR/
DR)_(n)
LOSMUT(n) RxOFF RxClk(n)INV Reserved
X
X
1
X
X
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT73L06 | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73L06IB | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC00A | E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC00AIV | E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03A | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT73L04A | 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L04AIV | 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L04B | 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
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| XRT73L04BIV | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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