參數(shù)資料
型號: XRT83SL30IV
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述: DATACOM, PCM TRANSCEIVER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-64
文件頁數(shù): 36/76頁
文件大?。?/td> 376K
代理商: XRT83SL30IV
XRT83SL30
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.0.4
RECEIVE
For N+1 redundancy, the receivers on the primary cards should be programmed for internal impedance mode.
The receivers on the backup card should be programmed for external impedance mode. Since there is no
external resistor in the circuit, the receivers on the backup card will be high impedance. Select the impedance
for the desired mode of operation, T1/E1/J1. To swap the primary card, set the backup card to internal
impedance mode, then the primary card to external impedance mode. See
Figure 17
. for a simplified block
diagram of the receive section for a N+1 redundancy scheme.
á
PRELIMINARY
33
N
OTE
:
For simplification, the over voltage protection circuitry was omitted.
F
IGURE
17. S
IMPLIFIED
B
LOCK
D
IAGRAM
- R
ECEIVE
S
ECTION
FOR
N+1 R
EDUNDANCY
Backplane Interface
Primary Card
XRT83SL30
Rx
Line Interface Card
Primary Card
XRT83SL30
Rx
Primary Card
XRT83SL30
Rx
Backup Card
XRT83SL30
Rx
RxTSEL=1, Internal
RxTSEL=1, Internal
RxTSEL=1, Internal
RxTSEL=1, External
T1/E1 Line
T1/E1 Line
T1/E1 Line
1:1
1:1
1:1
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相關代理商/技術參數(shù)
參數(shù)描述
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