參數(shù)資料
型號: 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
文件頁數(shù): 47/96頁
文件大?。?/td> 600K
代理商: XRT83VSH316IB
PRELIMINARY
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316
45
REV. P1.0.3
5.3.5
For N+1 redundancy, the transmitters on all cards should be programmed for internal impedance. The
transmitters on the backup card do not have to be tri-stated. To swap the primary card, close the desired
relays, and tri-state the transmitters on the failed primary card. A 0.68uF capacitor is used in series with TTIP
for blocking DC bias. See
Figure 30
for a simplified block diagram of the transmit section for an N+1
redundancy scheme.
F
IGURE
30. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
T
RANSMIT
I
NTERFACE
FOR
N+1 R
EDUNDANCY
Transmit Interface with N+1 Redundancy
Backplane Interface
Primary Card
XRT83VSH316
Tx
Line Interface Card
0.68uF
T1/E1 Line
0.68uF
Primary Card
Tx
0.68uF
Primary Card
Tx
0.68uF
Backup Card
Tx
T1/E1 Line
T1/E1 Line
Internal
Impedence
1:2
1:2
1:2
XRT83VSH316
XRT83VSH316
XRT83VSH316
Internal
Impedence
Internal
Impedence
Internal
Impedence
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相關代理商/技術參數(shù)
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