參數(shù)資料
型號： DS26303L-75
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 數(shù)字傳輸電路
英文描述： 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
中文描述： DATACOM, PCM TRANSCEIVER, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, MS-026, LQFP-144
文件頁數(shù)： 60/97頁
文件大?。?/td> 966K
代理商： DS26303L-75
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
60 of 97
6.4.4 AIS
Table 6-6
outlines the DS26303 AIS-related specifications.
Table 6-7
states the AIS functionality in the DS26303.
The registers related to the AIS detection are shown in
Table 6-8
.
Table 6-6. AIS Criteria T1.231, G.775, and ETSI 300 233 Specifications
STANDARD
ETSI 300233 FOR E1
CRITERIA
ITU G.775 FOR E1
ANSI T1.231 FOR T1
Fewer than nine 0s detected
in a 8192-bit period (a ones
density of 99.9% over a period
of 5.3ms) are received.
AIS
Detection
Two or fewer 0s in each of two
consecutive 512-bit streams
received.
Fewer than three 0s detected
in 512-bit period.
AIS
Clearance
Three or more 0s in each of two
consecutive 512-bit streams
received.
Three or more 0s in a 512-bit
period received.
Nine or more 0s detected in a
8192-bit period are received.
Table 6-7. AIS Detection and Reset Criteria
STANDARD
ETSI 300233 FOR E1
CRITERIA
ITU G.775 FOR E1
Two or fewer 0 in each of two
consecutive 512-bit streams
received.
ANSI T1.231 FOR T1
AIS
Detection
Fewer than three 0s detected
in 512-bit period.
Fewer than nine 0s contained
in 8192 bits.
AIS
Clearance
Three or more 0s in each of two
consecutive 512-bit streams
received.
Three or more 0s in a 512-bit
period received.
Nine or more bits received in a
8192-bit stream.
Table 6-8. Registers Related to AIS Detection
REGISTER
ACRONYM POINTER
FUNCTIONALITY
Section criteria for AIS. T1.231,
G.775, ETSI 300233 for E1.
Set when AIS is detected.
If reset interrupt due to AIS is not
generated.
Latched if there is a change in AIS
and the Interrupt is enabled.
LOS/AIS Criteria
LASCS
AIS Register
AIS
AIS Enable Register
AISIE
AIS Interrupt
AISI
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS26303L-75+ 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-75+A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-75A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303LN-120 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303LN-120+ 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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