參數(shù)資料
型號(hào)： XRT75R12D
廠商： Exar Corporation
英文描述： TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
中文描述： 第十二章通道E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER
文件頁數(shù)： 105/131頁
文件大?。?/td> 717K
代理商： XRT75R12D
PRELIMINARY
XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. P1.0.1
100
Figure 50 relates the contents within these 10 bits (within the H1 and H2 bytes) to the location of the J1 byte
(e.g., the very first byte of the STS-1 SPE) within the Envelope Capacity.
N
OTES
:
1.
If the content of the "Pointer Bits" is "0x00" then the J1 byte is located immediately after the H3 byte, within the
Envelope Capacity.
If the contents of the 10-bit expression exceed the value of 0x30F (or 782, in decimal format) then it does not
contain a valid pointer value.
Pointer Adjustments within the SONET Network
The word SONET stands for "Synchronous Optical NETwork. This name implies that the entire SONET
network is synchronized to a single clock source. However, because the SONET (and SDH) Networks can
2.
8.3.2
F
IGURE
49. T
HE
B
IT
-
FORMAT
OF
THE
16-B
IT
W
ORD
(
CONSISTING
OF
THE
H1
AND
H2
BYTES
)
WITH
THE
10
BITS
,
REFLECTING
THE
LOCATION
OF
THE
J1
BYTE
,
DESIGNATED
F
IGURE
50. T
HE
R
ELATIONSHIP
BETWEEN
THE
C
ONTENTS
OF
THE
"P
OINTER
B
ITS
" (
E
.
G
.,
THE
10-
BIT
EXPRESSION
WITHIN
THE
H1
AND
H2
BYTES
)
AND
THE
L
OCATION
OF
THE
J1 B
YTE
WITHIN
THE
E
NVELOPE
C
APACITY
OF
AN
STS-
1 F
RAME
X
X
X
X
X
X
X
X
X
X
S
S
N
N
N
N
LSB
MSB
H2 Byte
H1 Byte
10 Bit Pointer Expression
521
520
* * * * *
* *
436
435
E2
M0
S1
434
433
* * * * *
349
348
D12
D11
D10
347
346
* * * * *
262
261
D9
D8
D7
260
259
* * * * *
175
174
D6
D5
D4
173
172
* * * * *
88
87
K2
K1
B2
86
85
* * * * *
1
0
H3
H2
H1
782
781
* * * * *
697
696
D3
D2
D1
695
694
* * * * *
610
609
F1
E1
B1
608
607
* * * * * * * *
523
522
C1/J0
A2
A1
TOH
The Pointer Value “0” is immediately
After the H3 byte
相關(guān)PDF資料
PDF描述
XRT75R12DIB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75R12 TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75R12IB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00 E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00IV E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT75R12D_06 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12DES 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 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
XRT75R12DIB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 12CH E3/DS3/STS W/JITTER R3 TECH RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT75R12DIB-F 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 12 Channel 3.3V-5V temp -45 to 85C RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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