XRT75L04D
四通道E3 / DS3 / STS -1线路接口的SONET失同步单元
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修订版1.0.1
F
IGURE
36. A
N
I
LLUSTRATION的
T
ELCORDIA
GR-253-CORE'
S
R
ECOMMENDATION ON MAP如何
DS3
数据插入
STS - 1 SPE ......... 60
F
IGURE
37. A S
IMPLIFIED
＆ QUOT ; B
IT
-O
RIENTED
" V
作者版为
T
ELCORDIA
GR-253-CORE'
S
R
ECOMMENDATION如何映射
DS3
数据插入
STS-1 SPE.......................................................................................................................................................................... 60
9.2.2 DS3频率偏移和的"STUFF OPPORTUNITY"位使用.................................... ..... 61
9.2.2.1 T
HE
I
DEAL
C
ASE FOR
M
APPING
DS3
数据插入
STS - 1个S
IGNAL
(
E
.
G
.,
与无
F
Characteristic低频
O
FFSETS
) ............ 62
F
IGURE
38. A S
IMPLE
I
A的LLUSTRATION
DS3 ð
ATA
-S
TREAM BEING
M
APPED成
STS - 1 SPE ，
通过
PTE .................................... 62
9.2.2.2 T
HE
44.736M
BPS
+ 1
PPM
C
日月光
........................................................................................................................... 63
F
IGURE
39. A
N
I
的作者LLUSTRATION
STS - 1 SPE
交通将生成BY THE
＆ QUOT ; S
环境允许
" PTE ，
在映射IN A
DS3
信号
拥有的比特率
44.736M
BPS
+ 1
PPM
,
成
STS-1
信号
.................................................................................. 63
9.2.2.3 T
HE
44.736M
BPS
- 1
PPM
C
日月光
............................................................................................................................ 64
9.3
抖动/漂移DUE TO指针调整........................................... .................................... 65
9.3.1的STS- 1 SPE的概念POINTER........................................................................................................... 65
F
IGURE
40. A
N
I
的作者LLUSTRATION
STS - 1 SPE
交通将生成BY THE
S
环境允许
PTE ，
在映射
DS3
信号
拥有的比特率
44.736M
BPS
- 1
PPM
,
成
STS-1
信号
................................................................................... 65
F
IGURE
41. A
N
I
安LLUSTRATION
STS - 1 SPE
横跨横跨两个连续的
STS-1
帧
........................................... 66
9.3.2指针调整WITHIN THE SONET网络......................................... ......................................... 67
F
IGURE
42. T
HE
B
IT
-
的格式
16-B
IT
W
ORD
(
林蔚的作者
H1
和
H2
字节
)
与
10
位
,
反映了位置
该
J1
字节
,
特定
.................................................................................................................................................... 67
F
IGURE
43. T
HE
R
ELATIONSHIP之间
C
的作者ONTENTS
"P
OINTER
B
ITS
＆ QUOT ; （
E
.
G
.,
该
10-
BIT表达式中的
H1
和
H2
字节
)
和
L
的作者OCATION
J1 B
YTE WITHIN THE
E
NVELOPE
C
安APACITY
STS - 1μF
RAME
.................................................. 67
指针调整的原因9.3.3 ................................................................................................................... 68
F
IGURE
44. A
N
I
安LLUSTRATION
STS-1
信号被处理通过
S
LIP
B
UFFER
.................................................................... 69
F
IGURE
45. A
N
I
的作者LLUSTRATION
B
IT
F
ORMAT WITHIN THE
16-
位字
(
林蔚的作者
H1
和
H2
字节
)
与
[我＆ QUOT ;
BITS DES
-
IGNATED
............................................................................................................................................................................... 70
F
IGURE
46. A
N
I
的作者LLUSTRATION
B
IT
-F
ORMAT WITHIN THE
16-
位字
(
林蔚的作者
H1
和
H2
字节
)
与
＆ QUOT ; D＆ QUOT ;
BITS DES
-
IGNATED
............................................................................................................................................................................... 71
9.3.4为什么我们谈论的指针调整？ .................................................. ............................. 72
9.4时钟抖动间隙............................................................................................................................. 72
F
IGURE
47. I
的作者LLUSTRATION
T
YPICAL
A
PPLICATIONS的
刘
IN A
SONET ð
E
-S
YNC
A
PPLICATION
........................................ 72
该类别9.5综述我的固有抖动的要求（按照Telcordia GR- 253 -CORE ）
FOR DS3应用............................................................................................................................. 73
T
ABLE
22: S
作者UMMARY
"C
ATEGORY
I I
NTRINSIC
J
伊特尔
R
需要量PER
T
ELCORDIA
GR-253-CORE,
为
DS3
应用
........ 73
9.5.1 DS3解映射JITTER......................................................................................................................................... 74
9.5.2单指针调整............................................................................................................................. 74
9.5.3指针BURST........................................................................................................................................................ 74
F
IGURE
48. I
LLUSTRATION的
S
炉火
P
OINTER
A
DJUSTMENT
S
CENARIO
................................................................................................ 74
9.5.4相TRANSIENTS................................................................................................................................................. 75
F
IGURE
49. I
LLUSTRATION的
B
作者URST
P
OINTER
A
DJUSTMENT
S
CENARIO
........................................................................................... 75
F
IGURE
50. I
LLUSTRATION的
"P
HASE
-T
RANSIENT
" P
OINTER
A
DJUSTMENT
S
CENARIO
............................................................................ 75
9.5.5 87-3 PATTERN............................................................................................................................................................ 76
9.5.6 87-3 ADD ..................................................................................................................................................................... 76
F
IGURE
51. A
N
I
的作者LLUSTRATION
87-3 C
ONTINUOUS
P
OINTER
A
DJUSTMENT
P
ATTERN
.................................................................... 76
9.5.7 87-3取消.............................................................................................................................................................. 77
F
IGURE
52. I
的作者LLUSTRATION
87-3 A
DD
P
OINTER
A
DJUSTMENT
P
ATTERN
....................................................................................... 77
F
IGURE
53. I
LLUSTRATION的
87-3 C
安塞尔
P
OINTER
A
DJUSTMENT
S
CENARIO
...................................................................................... 77
9.5.8连续PATTERN........................................................................................................................................... 78
9.5.9连续加................................................................................................................................................... 78
F
IGURE
54. I
LLUSTRATION的
C
ONTINUOUS
P
定期
P
OINTER
A
DJUSTMENT
S
CENARIO
...................................................................... 78
9.5.10连续取消........................................................................................................................................... 79
F
IGURE
55. I
LLUSTRATION的
C
ONTINUOUS
-A
DD
P
OINTER
A
DJUSTMENT
S
CENARIO
............................................................................... 79
F
IGURE
56. I
LLUSTRATION的
C
ONTINUOUS
-C
安塞尔
P
OINTER
A
DJUSTMENT
S
CENARIO
......................................................................... 79
9.6 DS3 WANDER要求按ANSI T1.105.03B 1997年进行了审查。 .................................. 80
9.7刘某的固有抖动和漂移CAPABILITIES在一个典型的系统综述
应用................................................................................................................................................ 80
9.7.1固有抖动测试RESULTS.......................................................................................................................... 80
T
ABLE
23: S
作者UMMARY
"C
ATEGORY
I I
NTRINSIC
J
伊特尔
T
美东时间
R
ESULTS
＆ QUOT ;
为
SONET / DS3一个
PPLICATIONS
........................................... 80
9.7.2漂移测试测试RESULTS............................................................................................................ 81
9.8设计与刘........................................................................................................................... 81
9.8.1如何设计和配置刘以允许系统来满足上述本征
SIC抖动和漂移REQUIREMENTS............................................................................................................. 81
F
IGURE
57. I
的作者LLUSTRATION
刘
连接到一
M
冲击片雷管
IC
为
SONET ð
E
-S
YNC
A
PPLICATIONS
................................ 81
C
HANNEL
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
地址H1
L
OCATION
= 0
X
06..................................................................... 82
C
HANNEL
1 A
地址H1
L
OCATION
= 0
X
0E ............................................................ 82
C
HANNEL
2 A
地址H1
L
OCATION
= 0
X
16 ............................................................. 82
C
HANNEL
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
地址H1
L
OCATION
= 0
X
06..................................................................... 83
3
EXAR [ EXAR CORPORATION ]
