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): 48/96頁
文件大?。?/td> 600K
代理商: XRT83VSH316IB
XRT83VSH316
PRELIMINARY
46
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. P1.0.3
5.3.6
For N+1 redundancy, the receivers on the primary cards should be programmed for internal impedance. The
receivers on the backup card should be programmed for "High" impedance mode. To swap the primary card,
set the backup card to internal impedance, then the primary card to "High" impedance. See
Figure 31
for a
simplified block diagram of the receive section for a N+1 redundancy scheme.
F
IGURE
31. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
R
ECEIVE
I
NTERFACE
FOR
N+1 R
EDUNDANCY
Receive Interface with N+1 Redundancy
Backplane Interface
Primary Card
XRT83VSH316
Rx
Line Interface Card
Primary Card
Rx
Primary Card
Rx
Backup Card
Rx
Internal
Impedence
T1/E1 Line
T1/E1 Line
T1/E1 Line
1:1
1:1
1:1
XRT83VSH316
XRT83VSH316
XRT83VSH316
Internal
Impedence
Internal
Impedence
"High"
Impedence
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