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參數(shù)資料
| 型號(hào)： | XRT75VL00D |
| 廠商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| 中文描述： | E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER |
| 文件頁(yè)數(shù)： | 63/92頁(yè) |
| 文件大?。?/td> | 836K |
| 代理商： | XRT75VL00D |
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XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
61
consecutive STS-1 frames.
Figure 41 presents an illustration of an STS-1 SPE straddling across two
consecutive STS-1 frames.
A PTE that is receiving and terminating an STS-1 data-stream will perform the following tasks.
It will acquire and maintain STS-1 frame synchronization with the incoming STS-1 data-stream.
Once the PTE has acquired STS-1 frame synchronization, then it will locate the J1 byte (e.g., the very byte
within the very next STS-1 SPE) within the Envelope Capacity by reading out the contents of the H1 and H2
bytes.
The H1 and H2 bytes are referred to (in the SONET standards) as the SPE Pointer Bytes. When these two
bytes are concatenated together in order to form a 16-bit word (with the H1 byte functioning as the "Most
Significant Byte") then the contents of the "lower" 10 bit-fields (within this 16-bit word) reflects the location of
the J1 byte within the Envelope Capacity of the incoming STS-1 data-stream.
Figure 42 presents an
illustration of the bit format of the H1 and H2 bytes, and indicates which bit-fields are used to reflect the
location of the J1 byte.
FIGURE 41. AN ILLUSTRATION OF AN STS-1 SPE STRADDLING ACROSS TWO CONSECUTIVE STS-1 FRAMES
TOH
STS-1 FRAME N
STS-1 FRAME N + 1
J1 Byte (1st byte of SPE)
J1 Byte (1st byte of next SPE)
H1, H2
Bytes
SPE can straddle across two STS-1 frames
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT83SL34IV | QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83SL34 | QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XS2F-A422-90-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
| XS2F-A422-A90-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
| XS2F-A422-AB0-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75VL00D_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET |
| XRT75VL00D1V-F | 制造商:Exar Corporation 功能描述: |
| XRT75VL00DES | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 1CHT3/E3/STS1LIU+ DESYNC 3.3V DRV VER RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT75VL00DIV | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT75VL00DIV-F | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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