产品描述
本系列数字视频光端机采用数字视频编码及千兆光纤传输技术将多路单、双向视频、音频、数据、音频、电话、以太网、开关量在单芯或双芯光纤上实时同步、无失真、高质量地传输。 采用全数字视频无压缩传输技术,带有视频及数据等状态指示,可监控系统的正常运行。其采用结构模块化设计,用户可根据现场具体情况灵活选择或定制配置,可选独立台式安装和机架安装两种结构形式。
本系列产品均由光发射机和光接收机组成,可同时传输1路正向视频和1路反向RS485数据。
功能特点
◆ 全数字光纤传输平台、同平台多业务灵活配置
◆ 可提供普通型台式迷你型台式,集中插卡式机架多种方式
◆ 自主知识产权大规模专用集成电路核心
◆ 可以检测收无光时,远端设备是掉电或断纤
◆ PAL/NTSC/SECAM全制式兼容,演播级传输质量
◆ 提供双向异步数据(正向和反向)
◆ 异步数据,传输速率110-115.200Kbps以上
◆ 异步数据可为RS232/RS485/RS422/ Manchester码
◆ 数据接口与视频接口提供三级防雷功能,能通过ITU-T K.21(10/700 μS)共模:6KV阻抗(40 Ω)的测试
技术参数
◆ 光纤部分
物理接口:FC/PC、ST/PC
传输波长:850nm/1310nm/1550nm
传输距离:多模0-2km,单模:0-25km,0-60km,0-120km
发射光功率:优于 - 6dB
接收灵敏度:优于 -18dB
光学动态范围:12dB
光学允许最大链损:12dB
光纤种类:单模/多模光纤,单纤
光纤传输的距离受限于光学路径的损耗以及由于连接端子、接头、接插板而造成的附加损耗。传输距离也可能受到光纤带宽的限制。
◆ 视频接口
视频带宽: 5Hz ~10MHz
信号电平: 1Vp-p(典型值)
采样频率: 16.4M
信号阻抗: 75Ω
信号接口: BNC(PAL、NTSC、SECAM制式兼容)
微分增益(DG): <1.3 % (典型值)
微分相位(DP): <1.3° (典型值)
信噪比(SNR): >63 dB(加权)
◆ 数据接口
数据接口:RS-232、RS-422、RS-485、Manchester、TTL
数据格式:NRZ、Manchester、Bi-phase
速率:110bps-115.200Kbps
连接端子:RJ45
◆ 电源需求
系统电源: AC180V ~ 260V;DC –48V;DC +24V
功 耗: ≤10W
◆ 尺寸大小
迷你型: 216(宽)X140(深)X31(高)mm
19英寸: 483(宽)X138(深)X44(高)mm
◆ 工作环境
工作温度: -10℃ ~50℃
工作湿度: 5% ~ 95% (无凝露)
存储温度: -40 ℃~ 80℃
存储湿度: 5%~ 95% (无凝露)
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.