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參數(shù)資料
| 型號(hào)： | XRT83VSH316IB |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PBGA316 |
| 封裝： | 21 X 21 MM, STBGA-316 |
| 文件頁(yè)數(shù)： | 46/96頁(yè) |
| 文件大?。?/td> | 600K |
| 代理商： | XRT83VSH316IB |
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XRT83VSH316
PRELIMINARY
44
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. P1.0.3
5.3.3
The receivers on the backup card should be programmed for "High" impedance. Since there is no external
resistor in the circuit, the receivers on the backup card will not load down the line interface. This key design
feature eliminates the need for relays and provides one bill of materials for all interface modes of operation.
Select the impedance for the desired mode of operation, T1/E1/J1. To swap the primary card, set the backup
card to internal impedance, then the primary card to "High" impedance. See
Figure 29
. for a simplified block
diagram of the receive section for a 1:1 redundancy scheme.
F
IGURE
29. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
R
ECEIVE
I
NTERFACE
FOR
1:1
AND
1+1 R
EDUNDANCY
Receive Interface with 1:1 and 1+1 Redundancy
5.3.4
N+1 redundancy has one backup card for N primary cards. Due to impedance mismatch and signal
contention, external relays are necessary when using this redundancy scheme. The relays create complete
isolation between the primary cards and the backup card. This allows all transmitters and receivers on the
primary cards to be configured in internal impedance, providing one bill of materials for all interface modes of
operation. The transmit and receive sections of the LIU device are described separately.
N+1 Redundancy Using External Relays
"High" Impedence
Internal Impedence
Backplane Interface
Primary Card
Backup Card
XRT83VSH316
Rx
T1/E1 Line
Rx
1:1
1:1
XRT83VSH316
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| XRT84L14 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| XRT84L18 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| XRT84L38 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT83VSH316IB-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 16 Channel Short-Haul 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 |
| XRT83VSH316IB-F | 制造商:Exar Corporation 功能描述:T1/E1 LIU IC |
| XRT83VSH38 | 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83VSH38ES | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8CH T1/E1LIUSH (low cost version) 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 |
| XRT83VSH38IB | 功能描述:接口 - 專用 8CH SH T1/E1 Line RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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