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參數(shù)資料
| 型號(hào)： | XRT5794ES |
| 廠商： | Exar Corporation |
| 英文描述： | Evaluation System |
| 中文描述： | 評(píng)價(jià)體系 |
| 文件頁(yè)數(shù)： | 5/11頁(yè) |
| 文件大?。?/td> | 715K |
| 代理商： | XRT5794ES |
XRT5794ES
9
Rev. 2.00
Switch Position
1
IC Pin
28
Symbol
LPMOD3
Switch Setting
Off
Function
Channel 3 Remote Loop Back Mode
Selected
On
Channel 3 Local Loop Back Mode
Selected
2
27
LPMOD4
Off
Channel 4 Remote Loop Back Mode
Selected
On
Channel 4 Remote Loop Back Mode
Selected
3
(N t U
(Not Used)
4
19
LPEN3
Off
On
Off
On
Off
On
Off
Channel 3 Loop Mode Enabled
Channel 3 Normal Operation
Channel 4 Loop Made Enabled
Channel 4 Normal Operation
Monitor Output Enabled
Monitor Output High Impedance
Transmitter 3 Output Enabled
5
18
LPEN4
6
10
MONEN
7
9
TXEN3
On
Off
On
Transmitter 3 Output High Impedance
Transmitter 4 Output Enabled
Transmitter 4 Output High Impedance
8
8
TXEN4
Table 5. Dip Switch S3 Functions
HARDWARE CONFIGURATION CHANGES
This section describes hardware changes necessary for
different modes of operation. It assumes that the demo
boardisinitiallyconfiguredfor120
balancedE1service.
75
Unbalanced E1 Operation
Replace the 3-circuit audio type jacks used on the
line-side inputs and outputs with BNC connectors (9
total). Wire the center pin of each BNC connector to the
adjacent circuit borad pad labeled “75”.
With the demo board oriented so that the power
connections are in the upper left hand corner, reposition
the nine clip-on jumpers so that they now connect the top
two pins on the 3-pin headers labeled E1 through E9.
Balanced or unbalanced cable operation is chosen by a
clip-onjumperforeachchannelandbytheinstallationthe
appropriate types of input and output connectors. T1/E1
rate selection is done by one DIP switch section.
100/120
impedance selection for balanced operation
involoves a resistor change.
100
Balanced T1 Operation
Replace 120
resistor R2, R4, R6 and R8, with 100
parts.
Replace68
resistorsR10,R12,R14,R16andR18,with
62
parts.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT5894ES | () |
| XRT5894 | Four-Channel E1 Line Interface (3.3V or 5.0V)(四通道E1 3.3V線接口單元) |
| XRT5897ES | () |
| XRT5897 | Seven-Channel E1 Line Interface (3.3V or 5.0V)(七通道E1 3.3V線接口單元) |
| XRT5997 | Seven-Channel E1 Line Interface Unit(7通道 E1線接口單元) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT5794ES-PLCC | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 4 CH E1 AFE 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 |
| XRT5794ES-TQFP | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 4 CH E1 AFE 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 |
| XR-T5794IJ | 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:Quad E-1 Line Interface Unit |
| XRT5794IJ-F | 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 |
| XR-T5794IV | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CEPT/T1 Interface |
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