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参数资料
| 型号： | XRT75VL00D |
| 厂商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| 中文描述： | E3/DS3/STS-1线路接口单元与SONET DESYNCHRONIZER |
| 文件页数： | 83/92页 |
| 文件大小： | 836K |
| 代理商： | XRT75VL00D |
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XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
79
If the LIU has been configured to operate in the Hardware Mode.
Then the user should tie pin 43 (JATx/JARx*) to "1".
e.
Enable the "SONET APS Recovery Time" Mode
Finally, if the user intends to use the LIU in an Application that is required to reacquire proper SONET and DS3
traffic, prior within 50ms of an APS (Automatic Protection Switching) event (per Telcordia GR-253-CORE), then
the user should set Bit 4 (SONET APS Recovery Time Disable), within the "Jitter Attenuator Control" Register,
to "0" as depicted below.
NOTES:
1.
The ability to disable the "SONET APS Recovery Time" mode is only available if the LIU is operating in the Host
Mode. If the LIU is operating in the "Hardware" Mode, then this "SONET APS Recovery Time Mode" feature will
always be enabled.
2.
The "SONET APS Recovery Time" mode will be discussed in greater detail in “Section 9.8.3, How does the LIU
9.8.2
Recommendations on Pre-Processing the Gapped Clocks (from the Mapper/ASIC Device)
prior to routing this DS3 Clock and Data-Signals to the Transmit Inputs of the LIU
In order to minimize the effects of "Clock-Gapping" Jitter within the DS3 signal that is ultimately transmitted to
the DS3 Line (or facility), we recommend that some "pre-processing" of the "Data-Signals" and "Clock-Signals"
(which are output from the Mapper device) be implemented prior to routing these signals to the "Transmit
Inputs" of the LIU.
9.8.2.1
SOME NOTES PRIOR TO STARTING THIS DISCUSSION:
JITTER ATTENUATOR CONTROL REGISTER - CHANNEL 0 ADDRESS LOCATION = 0X07
CHANNEL 1 ADDRESS LOCATION = 0X0F
CHANNEL 2 ADDRESS LOCATION = 0X17
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2
BIT 1BIT 0
Unused
SONET APS
Recovery
Time
DisableCh_n
JA RESET
Ch_n
JA1 Ch_n
JA in Tx Path
Ch_n
JA0 Ch_n
R/O
R/W
00
000
0
11
JITTER ATTENUATOR CONTROL REGISTER - CHANNEL 0 ADDRESS LOCATION = 0X07
CHANNEL 1 ADDRESS LOCATION = 0X0F
CHANNEL 2 ADDRESS LOCATION = 0X17
BIT 7BIT 6BIT 5
BIT 4BIT 3BIT 2BIT 1BIT 0
Unused
SONET APS
Recovery
Time
DisableCh_n
JA RESET
Ch_n
JA1 Ch_n
JA in Tx Path
Ch_n
JA0 Ch_n
R/O
R/WR/W
R/W
00
0
00
001
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| XS2F-A422-90-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT75VL00D_08 | 制造商:EXAR 制造商全称: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:时钟合成器/抖动清除器 1CHT3/E3/STS1LIU+ DESYNC 3.3V DRV VER RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75VL00DIV | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75VL00DIV-F | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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