參數(shù)資料
型號： DS21352
英文描述： 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
中文描述： 3.3V DS21352及5V DS21552 T1單芯片收發(fā)器
文件頁數(shù)： 47/137頁
文件大小： 1094K
代理商： DS21352
DS21352/DS21552
47 of 137
Table 7-2 ALARM CRITERIA
ALARM
Blue Alarm
(AIS) (see note 1
below)
Yellow Alarm
(RAI)
1. D4 bit 2 mode(RCR2.2=0)
SET CRITERIA
when over a 3 ms window, 5 or
less zeros are received
when bit 2 of 256 consecutive
channels is set to zero for at least
254 occurrences
CLEAR CRITERIA
when over a 3 ms window, 6 or more zeros are
received
when bit 2 of 256 consecutive channels is set to
zero for less than 254 occurrences
2. D4 12th F–bit mode
(RCR2.2=1; this mode is also
referred to as the “Japanese
Yellow Alarm”)
3. ESF mode
when the 12th framing bit is set
to one for two consecutive
occurrences
when 16 consecutive patterns of
00FF appear in the FDL
when the 12th framing bit is set to zero for two
consecutive occurrences
when 14 or less patterns of 00FF hex out of 16
possible appear in the FDL
when 14 or more ones out of 112 possible bit
positions are received starting with the first one
received
Red Alarm
(LRCL) (this alarm
is also referred to as Loss Of
Signal)
when 192 consecutive zeros are
received
NOTES:
1. The definition of Blue Alarm (or Alarm Indication Signal) is an unframed all ones signal. Blue alarm detectors should be
able to operate properly in the presence of a 10E–3 error rate and they should not falsely trigger on a framed all ones signal.
The blue alarm criteria in the DS21352/552 has been set to achieve this performance. It is recommended that the RBL bit be
qualified with the RLOS bit.
2. ANSI specifications use a different nomenclature than the DS21352/552 does; the following terms are equivalent:
RBL = AIS
RCL = LOS
RLOS = LOF
RYEL = RAI
相關PDF資料
PDF描述
DS21352L 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21352LN 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21552L 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21552LN 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21354 MTTF is frequently used interchangeably with MTBF
相關代理商/技術參數(shù)
參數(shù)描述
DS21352DK 功能描述:網絡開發(fā)工具 T1/J1 Single Chip Tranceiver Kit RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
DS21352G 功能描述:網絡控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21352GN 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21352L 功能描述:網絡控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21352L+ 功能描述:網絡控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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