參數(shù)資料
型號: XRT75L03D
廠商: Exar Corporation
英文描述: THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
中文描述: Three頻道E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER
文件頁數(shù): 117/134頁
文件大?。?/td> 659K
代理商: XRT75L03D
á
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L03D
REV. 1.0.0
112
9.5.3
Figure 49 presents an illustration of the "Pointer Burst" Pointer Adjustment Scenario per Telcordia GR-253-
CORE.
Pointer Burst
Telcordia GR-253-CORE mandates that the Intrinsic Jitter, within the DS3 signal that is de-mapped from a
SONET signal, which is experiencing the "Burst of Pointer Adjustment" scenario, must NOT exceed 1.3UI-pp.
9.5.4
Phase Transients
Figure 50 presents an illustration of the "Phase Transients" Pointer Adjustment Scenario per Telcordia GR-253-
CORE.
F
IGURE
49. I
LLUSTRATION
OF
B
URST
OF
P
OINTER
A
DJUSTMENT
S
CENARIO
F
IGURE
50. I
LLUSTRATION
OF
"P
HASE
-T
RANSIENT
" P
OINTER
A
DJUSTMENT
S
CENARIO
Initialization
Cool Down
Measurement Period
>30s
Pointer Adjustment Events
0.5ms
t
Pointer Adjustment Burst Train
0.5ms
Initialization
Cool Down
Measurement Period
>30s
Pointer Adjustment Events
0.25s
t
Pointer Adjustment Burst Train
0.25s
0.5s
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