參數(shù)資料
型號(hào)： XRT73LC00A
廠商： Exar Corporation
英文描述： E3/DS3/STS-1 LINE INTERFACE UNIT
中文描述： E3/DS3/STS-1線路接口單元
文件頁(yè)數(shù)： 46/53頁(yè)
文件大?。?/td> 376K
代理商： XRT73LC00A
XRT73LC00A
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. P1.0.0
xr
PRELIMINARY
43
Presented in Figure 33, if LIU # 1 (U1) fails, then LIU
# 2 (U2) drives its DMO output pin “High”. Likewise, if
LIU # 2 (U2) fails, then LIU # 1 (U1) drives its DMO
output pin “High”.
The scheme presented in Figure 33 is a better design
approach. It overcomes situations in which a LIU
monitoring its own signal (Figure 32) may experience
a failure mode such that it cannot drive a bipolar sig-
nal onto the line. That same failure mode may pre-
vent the LIU from driving the DMO output pin “High”.
4.6
T
HE
TAOS (T
RANSMIT
A
LL
O
NE
S) F
EATURE
The XRT73LC00A can transmit an all “1’s” pattern
onto the line by toggling a single input pin or by set-
ting a single bit-field in one of the Command Regis-
ters to “1”.
N
OTE
:
When this feature is activated, the Transmit Section
of the XRT73LC00A overwrites the Terminal Equipment
data with this all “1’s” pattern.
This feature can be activated by either of the following
methods.
When the XRT73LC00A is operating in the Hard-
ware Mode:
Configure the device to transmit an all “1’s” pattern by
toggling the TAOS input pin (pin 2) “High”. Terminate
the all “1’s” pattern by toggling the TAOS input pin
“Low”.
When the XRT73LC00A is operating in the HOST
Mode:
If the XRT73LC00A is operating in the HOST Mode,
the TAOS input pin is disabled. Consequently, the
XRT73LC00A can be configured to transmit an all
“1’s” pattern by writing to Command Register CR1
and setting the TAOS bit-field (bit D3) to “1”.
The all “1’s” pattern can be terminated by writing to
Command Register CR1 and setting the TAOS bit-
field (D3) to “0".
F
IGURE
33. T
WO
LIU’
S
, E
ACH
M
ONITORING
THE
T
RANSMIT
O
UTPUT
S
IGNAL
OF
THE
O
THER
LIU IC
R1
31.6
BNC
T1
R2
31.6
R7
31.6
BNC
R8
31.6
TTIP
TRING
R3
270
R4
270
R5
270
R6
270
TRING
TTIP
MRING
MTIP
MRING
MTIP
DMO_Channel_2
DMO_Channel_1
DMO
DMO
T2
PE-68629
PE-68629
TXOFF
TXOFF
U1
U2
COMMAND REGISTER CR1 (ADDRESS = 0X01)
D4
D3
D2
D1
D0
TXOFF
TAOS
TXCLKINV
TXLEV
TXBIN
0
1
X
X
X
相關(guān)PDF資料
PDF描述
XRT73LC00AIV E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC03A 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73LC03AIV 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73LC04A 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73LC04AIV 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
XRT73LC00A_08 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC00AES 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
XRT73LC00AIV 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
XRT73LC00AIV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 1-Ch DS3, E3, SONET 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
XRT73LC00AIVTR 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*