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)： 57/92頁(yè)
文件大?。?/td> 836K
代理商： XRT75VL00D
XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
55
Figure 36 was copied directly out of Telcordia GR-253-CORE. However, this figure can be simplified and
redrawn as depicted below in Figure 37.
FIGURE 36. AN ILLUSTRATION OF TELCORDIA GR-253-CORE’S RECOMMENDATION ON HOW MAP DS3 DATA INTO
AN
STS-1 SPE
FIGURE 37. A SIMPLIFIED "BIT-ORIENTED" VERSION OF TELCORDIA GR-253-CORE’S RECOMMENDATION ON HOW
TO MAP
DS3 DATA INTO AN STS-1 SPE
For DS3 Mapping, the STS-1 SPE has the following structure.
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
25I
I
C3
R
25I
I
C2
R
25I
C1
R
POH
87 bytes
R = [r, r, r, r, r, r, r, r]
I = [i, i, i, i, i, i, i, i]
C1 = [r, r, c, i, i, i, i, i]
C2 = [c, c, r, r, r, r, r, r]
C3 = [c, c, r, r, o, o, r, s]
i = DS3 data
r = fixed stuff bit
c = stuff control bit
s = stuff opportunity bit
o = overhead communications channel bit
Fixed
Stuff
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
208i
s
1r
2o
2r
2c
16r
208i
6r
2c
16r
205i
c
18r
r
c
s
i
o
- Fixed Stuff Bits
- Stuff Control/Indicator Bits
- DS3 Data Bits
- Stuff Opportunity Bits
- Overhead Communication Bits
POH
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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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