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參數(shù)資料
| 型號： | XRT59L921 |
| 廠商： | Exar Corporation |
| 英文描述： | TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT |
| 中文描述： | 二十一條路E1線路接口單元 |
| 文件頁數(shù)： | 20/32頁 |
| 文件大?。?/td> | 377K |
| 代理商： | XRT59L921 |
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XRT59L921
18
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
REV. 1.2.1
Each channel (within the XRT59L921) will take each mark (which is provided to it via the Transmit Input
Interface block, and will generate a pulse that complies with the pulse template, presented in
Figure 6
, (when
measured on the secondary-side of the Transmit Output Transformer).
1.4
Interfacing the Transmit Sections of the XRT59L921 to the Line
ITU-T G.703 specifies that the E1 line signal can be transmitted over coaxial cable and terminated with 75
or
transmitted over twisted-pair and terminated with 120
. However, in both applications (e.g., 75
or 120
), the
user is advised to interface the Transmitter to the Line, in the manner as depicted in
Figure 7
and
Figure 8
,
respectively.
F
IGURE
6. I
LLUSTRATION
OF
THE
ITU-T G.703 P
ULSE
T
EMPLATE
FOR
E1 A
PPLICATIONS
1
1
1
1
1
1
269 ns
(244 + 25)
194 ns
(244 – 50)
244 ns
219 ns
(244 – 25)
488 ns
(244 + 244)
0%
50%
2
V = 100%
Nominal pulse
Note
– V corresponds to the nominal peak value.
2
2
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| XRT59L921IB | TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT |
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| XRT6164A_07 | Digital Line Interface Transceiver |
| XRT6164AID | Digital Line Interface Transceiver |
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT59L921ES | 功能描述:外圍驅(qū)動器與原件 - PCI 21 CH E1 LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT59L921IB | 功能描述:外圍驅(qū)動器與原件 - PCI 21CH CMOS E1 3.3V W/5V TOL INPUT RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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| XR-T6000CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| XRT-601 | 制造商:Pro-Signal 功能描述:PATCH LEAD CAT5E X-OVER 1M 制造商:pro-power 功能描述:PATCH LEAD, CAT5E, X-OVER, 1M 制造商:PRIVATE LABEL 功能描述:PATCH LEAD, CAT5E, X-OVER, 1M, Connector Type A:RJ45 Plug, Connector Type B:RJ45 |
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