參數(shù)資料
型號(hào)： XRT86VL3x
廠商： Exar Corporation
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 33/153頁
文件大?。?/td> 1316K
代理商： XRT86VL3X
XRT86VL3X
26
REV. 1.2.2
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
3.8
Transmit MOS (Message Oriented Signaling) Processor
The Transmit LAPD controller implements the Message-Oriented protocol based on ITU Recommendation
Q.921 Link Access Procedures on the D-channel. It provides the following functions.
Zero stuffing
T1/E1 transmitter interface
Transmit message buffer access
Frame check sequence generation
IDLE flag insertion
ABORT sequence generation
Two 96-byte buffers in shared memory are allocated for each LAPD to reduce the frequency of microprocessor
interrupts and alleviate the response time requirement for a microprocessor to handle each interrupt. There
are no restrictions on the length of the message. However the 96-byte buffer is deep enough to hold one entire
LAPD path or test signal identification message.
3.8.1
Discussion of MOS
Message-Oriented signals sent by the transmit LAPD Controller are messages conforming to ITU
Recommendation Q.921 LAPD protocol. There are two types of Message-Oriented signals. One is a periodic
performance report generated by the source or sink T1/E1 terminals as defined by ANSI T1.403. The other is
a path or test signal identification message that may be optionally generated by a terminal or intermediate
equipment on a T1/E1 circuit. The message structures of the performance report and path or test signal
identification message are shown in
Figure 33
for format A and format B respectively.
相關(guān)PDF資料
PDF描述
XRT86VL3X_07 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL3X Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT91L30_0611 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L306 STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L30IQ STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT86VL3X_07 制造商:EXAR 制造商全稱:EXAR 功能描述:T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
XRT86VL3X_0710 制造商:EXAR 制造商全稱:EXAR 功能描述:T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
XRT86VX38 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
XRT86VX38_09 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
XRT86VX38_0906 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*