产品描述
3Gbps HD-SDI高清视频光发射机/接收机采用数字编码技术，可将一路3Gbps HD -SDI视频信号与一路反向数据信号通过一根单模光纤实现远距离双向传输，最大可将信号不失真无中继地传输80Km。
3Gbps HD -SDI高清数字电视光端机信号格式从270Mbps到2.97Gbps 3Gbps HD-SDI视频光端机系统支持SMPTE 424MSMPTE 292SMPTE 344M、SMPTE 259M以及DVB-ASI（270M）等数字电视格式的信号。
功能特点
◆ 可提供普通型台式，集中插卡式机架多种方式
◆ SD HD 3G 输入自动检测，支持270Mbit/s - 1.48Gbit/s - 3Gbit/s 速率；支持新的FULL HD全高清1080P/60HZ 3Gbps HD-SDI格式信号，传输距离最远可达80KM;
◆ 支持SMPTE 424M(2.97Gbps/s)、SMPTE 292M (1.485Gbps/s)、SMPTE 344M (540Mb/s)、SMPTE 259M(360Mb/s)和 DVB-ASI(270Mb/s)
◆ 发射机内带自动电缆均衡，80M:2.97Gb/s 140M:1.485Gb/s 250M:270Mb/s
◆ 发射机与接收机都另带一路SDI视频输出，并有LED指示SDI 信号的接入状态
◆ 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
◆ 异步数据可为RS232/RS485/RS422/ Manchester码
技术参数
◆ 光纤部分
光纤：单纤双纤
光纤接口：FC
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
视频带宽： 270Mb/s – 2.97Gb/s
电视信号标准：SMPTE 424M、SMPTE 292M、SMPTE 344M、SMPTE 259M和 DVB-ASI
反射损耗： >15DB
均衡： 250m @ 270Mbit/s140m @ 1.485Gbit/s80m @ 2.97Gbit/s
接口: 75欧 BNC
◆ 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
◆ 电气和机械特性
电压： AC165V ~ 265V；DC –48V；DC +24V
功耗： ≤75W
独立安装尺寸： 186(长)*138(高)*31(深)
重量：1kg
◆ 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.
