一、产品描述
本系列PDH光端机是本公司研制的PDH光纤传输专用超大规模集成电路的基础上开发的点对点光传输设备。
提供1~4路E1接口,1路10/100/1000M千兆以太网接口(线速1000M),可选一路数字公务电话,应用十分灵活。具备完善的告警功能,整机工作稳定可靠,功耗低,集成度高,体积小。
二、功能特点
◆ 产品为19英寸1U 机架式安装;
◆ 基于自主知识产权的集成电路;
◆ 模块化宽动态光探测器;
◆ 光纤带宽高达1.5G,以太网带宽线速1000M,接口速率为10/100/1000M,全双工/半双工自适应;
◆ 具备防以太网环回功能(当光线路发生环回时,以太网数据不会被环回,有效防止了因以太网环回可能导致的以太网络瘫痪);
◆ 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;
◆ 一路PCM数字公务电话(可选);
◆ 能检测当光信号丢失时为对端设备掉电或是光纤不通,并通过指示灯指示告警;
◆ 具备在本端查看显示远端设备工作状态功能;
◆ 提供命令远端E1接口环回功能,便于线路维护;
◆ 无中继传输距离可达2~100公里;
◆ 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;
三、技术参数
◆ 光纤部分
光口:1,2(1+1 光备份)
光纤:单纤双纤
光纤接口:FC/SC/ST/LC(SFP)
波长:850nm/1310nm 多模;1310nm/1550nm 单模
无中继传输距离:20~120Km
典型发射功率:
单模1310/1550nm:≥-9dBm
多模850nm:-18dBm
多模1310nm: -25dBm
接受灵敏度范围:-28dBm~- 40dBm
◆ E1 接口
设备接口:设备接口符合ITU-T 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ITU-T G.742、G.823建议
输入口允许衰减:0~6dBm
◆ 10/100/1000M以太网接口
协 议: 符合IEEE 802.3z,IEEE 802.3ab
速 率:10/100/1000M自适应,全/半双工完全自适应
MAC地址表:可以学习4096个MAC地址
物理接口:RJ45座 支持Auto-MDIX(交叉/直通线自适应)
◆ FXS 公务电话接口
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)X140(宽)X45(高)mm 19英寸 1U机架式
◆ 环境指标
工作温度:-10℃—+60℃(商业级)/-40℃—+85℃(工业级)
储存温度:-40℃—+85℃
工作湿度:0%—95%(无凝结)
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.