參數(shù)資料
型號: DS3120
廠商: Maxim Integrated Products
文件頁數(shù): 98/133頁
文件大?。?/td> 0K
描述: IC FRAMER T1 28-CHAN 0-70C DEG
標(biāo)準(zhǔn)包裝: 1
控制器類型: T1 調(diào)幀器
接口: 并行/串行
電源電壓: 2.97 V ~ 3.63 V
電流 - 電源: 300mA
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 316-BGA
包裝: 管件
DS3112
67 of 133
Table 6-1. T2 Alarm Criteria
ALARM/
CONDITION
DEFINITION
SET CRITERIA
CLEAR CRITERIA
AIS
Alarm Indication Signal
Unframed all ones
Eight or fewer zeros in four
consecutive M frames (4704
bits)
Nine or more zeros in four
consecutive M frames
(4704 bits)
LOF
Loss Of Frame
Too many F bits or M bits in
error
Two or more F bits in error
out of five, or two or more M
bits in error out of four
Synchronization occurs
RAI
Remote Alarm Indication
Inactive: X = 1
Active: X = 0
X = 0 for four consecutive M
frames (4704 bits)
X = 1 for four consecutive
M frames (4704 bits)
Table 6-2. E2 Alarm Criteria
ALARM/
CONDITION
DEFINITION
SET CRITERIA
CLEAR CRITERIA
AIS
Alarm Indication Signal
Unframed all ones
Four or fewer zeros in each of
two consecutive 848-bit
frames
Five or more zeros in each
of two consecutive 848-bit
frames
LOF
Loss Of Frame
Too many FAS errors
Four consecutive bad FAS
Three consecutive good
FAS
RAI
Remote Alarm Indication
Inactive: Bit 11 of the frame = 0
Active: Bit 11 of the frame = 1
Bit 11 = 1 for four consecutive
frames (3392 bits)
Bit 11 = 0 for four
consecutive frames (3392
bits)
Table 6-3. G.747 Alarm Criteria
ALARM/
CONDITION
DEFINITION
SET CRITERIA
CLEAR CRITERIA
AIS
Alarm Indication Signal
Unframed all ones
Four or fewer zeros in each of
two consecutive 840-bit
frames
Five or more zeros in each
of two consecutive 840-bit
frames
LOF
Loss Of Frame
Too many FAS errors
Four consecutive bad FAS
Three consecutive good
FAS
RAI
Remote Alarm Indication
Inactive: Bit 1 of Set 2 = 0
Active: Bit 1 of Set 2 = 1
Bit 1 of Set 2 = 1 for four
consecutive frames (3360
bits)
Bit 1 of Set 2 = 0 for four
consecutive frames (3360
bits)
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