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參數(shù)資料
| 型號： | XRT73L02 |
| 廠商： | Exar Corporation |
| 英文描述： | 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元) |
| 中文描述： | 2頻道E3/DS3/STS-1線路接口單元（2通道E3/DS3/STS-1線接口單元） |
| 文件頁數(shù)： | 48/62頁 |
| 文件大小： | 716K |
| 代理商： | XRT73L02 |
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XRT73L02
2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. P1.1.0
á
PRELIMINARY
44
N
OTE
:
The RNEG_(n) output pin is internally tied to Ground
whenever this feature is implemented.
3.8
S
HUTTING
OFF
THE
R
ECEIVE
S
ECTION
The Receiver Section in each channel of the
XRT73L02 can be shut off. This feature may be use-
ful in some redundant system designs. Particularly, in
those designs where the Receive Termination in 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, it is a waste of power if the
LIU on the Secondary Line Card is consuming the
normal amount of current. 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 Section of Channel (n) by pulling
the RxOFF_(n) input pin “High". Turn on the Receive
Section of Channel (n) by pulling the RxOFF_(n) in-
put pin to "Low".
b. Operating in the HOST Mode
Shut off the Receive Section of Channel (n) by writing
a "1" into the RxOFF_(n) bit-field in Command Regis-
ter CR3-(n). Turn on the Receive Section of Channel
(n) by writing a "0" into the RxOFF_(n) bit-field in
Command Register CR3-(n).
F
IGURE
26. T
HE
BEHAVIOR
OF
THE
RPOS
AND
R
X
C
LK
OUTPUT
SIGNALS
WHILE
THE
XRT73L02
IS
TRANSMIT
-
TING
S
INGLE
-R
AIL
DATA
TO
THE
R
ECEIVING
T
ERMINAL
E
QUIPMENT
RxClk
RPOS
COMMAND REGISTER CR3-(N)
D4
D3
D2
D1
D0
SR/(DR)_(n)
LOSMUT_(n)
RxOFF_(n)
RxClk_(n)INV
Reserved
X
X
1
X
X
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT73L03A | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03AIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03B | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03BIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L04A | 4 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 |
|---|---|
| XRT73L02M | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73L02MES | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT73L02MIV | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73L02MIV-F | 功能描述:外圍驅(qū)動器與原件 - 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 |
| XRT73L02MIVTR-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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