收藏本站
参数资料
型号： DS26334GN
英文描述： 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit
中文描述： 3.3伏，16路，E1/T1/J1短，长途线路接口单元
文件页数： 30/115页
文件大小： 756K
代理商： DS26334GN
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
30 of 115
5.5.5.2
4.5.3.1 ITU G.775 for E1 Modes
For short-haul mode, LOS is detected if the received signal level is less than 200mV for a continuous duration of
192 bit periods. LOS is reset if the receive signal level is greater than 300mV for a duration of 192 bit periods.
For long-haul mode, LOS is detected if the received signal level is less than 12mV for a continuous duration of 192
bit periods. LOS is reset if the receive signal level is greater than 20mV for a duration of 192 bit periods.
5.5.5.3
4.5.3.1 ETSI 200 233 for E1 Modes
For short-haul mode, LOS is detected if the received signal level is less than 200mV for a continuous duration of
2048 (1ms) bit periods. LOS is reset if the receive signal level is greater than 300mV for a duration of 192 bit
periods.
For long-haul mode, LOS is detected if the received signal level is less than 12mV for a continuous duration of 192
bit periods. LOS is reset if the receive signal level is greater than 20mV for a duration of 192 bit periods.
5.5.6 AIS
Table 5-8
outlines the DS26334 AIS related specifications.
Table 5-9
states the AIS functionality in the DS26334.
The registers related to the AIS detection are shown in
Table 5-10
.
Table 5-8. 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 9 zeros detected in
a 8192-bit period (a ones
density of 99.9% over a period
of 5.3ms) are received.
AIS
Detection
Criteria
2 or fewer zeros in each of 2
consecutive 512-bit stream
received.
Fewer than 3 zeros detected in
512 bit period.
AIS
Clearance
Criteria
3 or more zeros in each of 2
consecutive 512-bit streams
received.
3 or more zeros in 512 bits
received.
9 or more zeros detected in a
8192-bit period are received.
Table 5-9. AIS Detection and Reset Criteria for DS26334
STANDARD
ETSI 300233 for E1
CRITERIA
ITU G.775 for E1
2 or fewer zeros in each of 2
consecutive 512-bit streams
received.
3 or more zeros in each of 2
consecutive 512-bit streams
received.
ANSI T1.231 for T1
AIS
Detection
Criteria
AIS
Clearance
Criteria
Fewer than 3 zeros detected in
512-bit period.
Fewer than 9 zeros contained
in 8192 bits.
3 or more zeros in 512 bits
received.
9 or more bits received in a
8192-bit stream.
Table 5-10. Registers Related to AIS Detection
REGISTER
ACRONYM
POINTER
LASCS
AIS
AISIE
AISI
FUNCTIONALITY
LOS/AIS Criteria
AIS Register
AIS Enable Register
AIS Interrupt
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.
相关PDF资料
PDF描述
DS26503 T1/E1/J1 BITS Element
DS26503L T1/E1/J1 BITS Element
DS26503LN T1/E1/J1 BITS Element
DS26503 T1/E1/J1/64KCC BITS Element
DS26LV3 16 AMP LOW PROFILE POWER RELAY
相关代理商/技术参数
参数描述
DS26334GN+ 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA2 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA2+ 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA3 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA3+ 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*