产品描述
本E1语音复用设备是提供2个E1接入,1+1 备份保护,30路电话输出,设备电部分为全数字电路,整机工作可靠、稳定,功耗低,集成度高,体积小,易于安装维护。
功能特点
◆ 基于自主知识产权的集成电路;
◆ E1接口符合G.703 建议,采用全数字化时钟恢复和平滑锁相技术;
◆ 提供两个1+1备份E1接口,主备功能,主E1断路时,备用E1工作,保证业务不中断;
◆ 语音口支持FXO/FXS/二四线EM/二四线音频/磁石电话接口,FXO口与程控交换机对接,FXS口与用户的电话机相连;
◆ 1-30路语音接入,支持来电显示功能/反极性计费/传真功能;
◆ 电话接口支持两边站点的相互放号功能;
◆ 能检测E1信号丢失时为对端设备关机还是E1不通;
◆ 提供2种时钟方式:E1主时钟,E1线路时钟;
◆ 提供3种环回功能:E1本端自环(ANA),以太网接口向远端环回(DIG),命令对端以太网接口向本端环回(REM);
◆ 有伪随机码测试功能(PATT),便于线路开通,即可以当一个的E1误码仪来用;
◆ 多种电源方式可选:AC220V、DC-48V/DC24V等;支持AC+DC;AC+AC;DC+DC等双电源备份模式;
◆ 电话接口带防雷保护,防雷达到GB/T17626.5(IEC61000-4-5) 短路电流波8/20μs,开路峰值输出电压6KV标准;
技术参数
◆ E1 接口
设备接口: 设备接口符合G.703建议
速 率: 2048Kb/s±50ppm
码 型: HDB3
阻 抗: 非平衡式 75Ω/平衡式 120Ω
非平衡式配同轴接口适配器,可适配75-2/3同轴电缆
抖动特性: 满足G.742、G.823建议
输入口允许衰减:0~6dBm
◆ FXS 用户电话口
振铃电压: 75V
振铃频率: 25Hz
二线输入阻抗:600Ω(摘机)
回损: 20dB
◆ FXO 中继口
振铃检测电压:35V
振铃检测频率:17Hz-60Hz
二线输入阻抗:600Ω(摘机)
回损: 20 dB
◆ E&M 2/4线接口
E&M类型: TYPE V
E线最大电流:22mA;饱和电压:3V
M线恒定电流:7mA; 最小检测电流:5mA
AD增益:0dB;
DA增益:0dB
2/4线输入阻抗:600Ω
◆ 磁石电话接口
振铃电压:75V
振铃频率:25Hz
二线输入阻抗:600Ω(摘机)
回损:20dB
◆ 电气和机械特性
系统电源: AC180V ~260V;DC –48V;DC +24V
功耗: ≤10W
外观结构: 485(长)X200(宽)X45(高)mm 19英寸 1U机架式
◆ 环境指标
工作温度: -10℃—+60℃
储存温度: -40℃—+85℃
工作湿度: 0%—95%(无凝结)
MTBF: >100000小时
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.