參數(shù)資料
型號: LXT332
廠商: Digital Data Communications GmbH
英文描述: 3941
中文描述: 雙T1/E1線路接口單元與水晶無衰減
文件頁數(shù): 4/32頁
文件大?。?/td> 777K
代理商: LXT332
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Tristate Output Enable Input Pin.
Forces all output pins to high-Z tri-state
when held High. Enables Bipolar I/O mode when held Low. In this mode
the framer interface is bipolar (TPOS/TNEG and RPOS/RNEG), and the
B8ZS/HDB3 encoders are disabled. Enables Unipolar I/O mode when
clocked by MCLK. In this mode the framer interface is unipolar (TDATA
and RDATA), and the TNEG and RNEG pins are re-mapped. The TNEG
pins are re-mapped as Encoder Enable (ECE) to individually enable the
B8ZS/HDB3 encoder/decoder for each port. The RNEG pins are re-mapped
as Bipolar Violation (BPV) indicators to report BPVs received at the respec-
tive ports.
Transmit Clock - Port 0.
1.544 MHz for T1, 2.048 MHz for E1. The trans-
mit data inputs are sampled on the falling edge of TCLK.
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TCLK0
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