FOM-20异步/同步光纤调制解调器可选择多种数据速率：从19.2kbps至256kbps同步或异步数据传输传输范围达:-850nm多模光纤为8公里（5英里）-1310nm单模光纤为25公里（15.5英里）-1310nm激光二极管为60公里（37.5英里）-1550nm激光二极管为140公里（87英里）数字接口：V.24（***高达64kbps）、V.35、X.21、RS-530、V.36/RS-449、以太网（桥）及G.703同向V.54诊断功能及内置比特差错率测试仪FOM-20同步/异步光纤调制解调器可在光缆上进行全双工或半双工操作。19.2kbps到256kbps间可选择16种数据速率。4种速率用于异步传输，11种用于同步传输（19.2kbps同步/异步均可）。FOM-20可在使用850nm或1310nm发光管和1310nm或1550nm激光二极管的单模或多模光纤上运行。FOM-20主要应用在噪声环境下进行点对点连接，其距离比任何铜线调制解调器都长，或者在出于安全原因必须使用光纤时应用。FOM-20具有运行本端模拟/数字环测及远端数字环测的V.54诊断功能。环测命令由一手动开关控制或通过数据终端设备接口信号控制。FOM-20含有一个内置比特差错率测试仪，通过前面板上开关启动，并根据V.52标准产生511伪随机检测模式。FOM-20可作为一***单元或作为A***-MN-214型19英寸机架的插卡。可用专用工具在19英寸机架内安装一或两个***装置。上海凯润计算机网络系统有限公司***经销各类MODEM如：RAD、培尔根、百令达、新桥DTU、阿尔卡特、ASCOM、达科、LOOP、台联，ATRIE，GEOCOM。摩迪泰克等品牌的调制解调器，***经销华为、CISCO等品牌网络交换机，路由器，防火墙等，***经销台湾CTC，瑞斯康达RAISECOM，F-engine***，RAYPU，CCOM，格林威尔等转换器，光纤收发器，光端机，光纤融接机，数据通信测试仪，误码测试仪，光测试仪表OTDR，MOXA，康海多串口卡，通讯服务器等设备。***的产品销售，良好的***服务，真正解决你的后顾之忧。欢迎浏览网站：http://kr.cn(通讯产品平台)上海凯润计算机网络系统有限公司竭诚为你服务！021-61504972(中继）18221832807(手机）***：779289378MSN：shkr2010@联系人：张超（产品经理）上海市普陀区中山北路1715号浦发财富广场E座2110A、B室FOM-20/48/ST85/703/TB/BLANKFOM-20/48/ST85/703/TBFOM-20/230/SC13L/UTPFOM-20/115/ST85/V36FOM-20/230/SC13L/703/TBFOM-20/230/SC15L/V24FOM-20/230/ST85/V35/BLANKFOM-20/230/FC13L/X21FOM-20/48/SC15L/V35FOM-20/48/FC13L/X21FOM-20/115/SC13L/703/RJFOM-20/115/ST13L/X21FOM-20/115/FC13L/UTPFOM-20/48/ST13L/UTPFOM-20/115/SC13L/UTPFOM-20/115/SC13L/V36FOM-20/230/ST85/V36FOM-20/48/FC85/V24FOM-20/115/ST85/530FOM-20/48/SC85/703/RJFOM-20/230/ST13L/UTPFOM-20/48/ST15L/703/TBFOM-20/230/ST85/530/BBFOM-20/115/ST13L/UTPFOM-20/115/ST15L/UTPFOM-20/230/FC85/703/TBFOM-20/230/FC13L/703/TBFOM-20/230/ST15L/X21FOM-20/115/ST15L/V24FOM-20/230/ST15L/V24FOM-20/115/SC85/V35FOM-20/230/FC13L/UTPFOM-20/48/ST85/703/RJFOM-20/48/ST85/V36FOM-20/230/ST15L/703/RJFOM-20/24/ST15L/V24FOM-20/24/SC15L/V24FOM-20/48/SC85/V24FOM-20/230/FC15L/703/RJFOM-20/48/SC13L/X21FOM-20/230/ST13L/703/TBFOM-20/230/SC85/UTPFOM-20/115/ST13L/V24FOM-20/115/FC85/V35FOM-20/230/ST85/X21FOM-20/230/ST13L/V35FOM-20/48/ST85/X21FOM-20/48/FC13L/V35FOM-20/48/SC13L/703/TBFOM-20/115/SC15L/V24FOM-20R/SC13L/V24FOM-20R/ST13L/V24FOM-20/24/ST13L/X21FOM-20/230/ST13L/V36FOM-20/115/ST85/703/RJFOM-20/230/FC15L/X21FOM-20/230/SC13L/X21FOM-20/230/ST15L/X21FOM-20/48/FC85/X21FOM-20/48/ST15L/V24FOM-20/115/ST85/530/BBFOM-20/115/ST13L/530FOM-20/230/SC13L/V35/BLANKFOM-20/230/SC13L/V35FOM-20/230/FC13L/703/RJFOM-20/230/FC85/530FOM-20/115/ST13L/703/RJFOM-20/115/ST13L/703/TBFOM-20/115/SC13L/X21FOM-20/230/ST13L/530FOM-20/48/ST13L/703/TBFOM-20/230/SC85/V24FOM-20/115/FC13L/V24/703/RJFOM-20/230/SC85/V35FOM-20/48/FC13L/V36FOM-20R/ST13L/703FOM-20/48/SC13L/V24FOM-20/48/SC85/703/TBFOM-20/24/ST85/V35FOM-20/230/SC13L/703/RJFOM-20/48/SC13L/703/RJFOM-20/115/SC85/V24FOM-20/230/SC85/703/TBFOM-20/24/ST85/703/RJFOM-20R/FC13L/X21FOM-20/230/SC15L/UTPFOM-20/48/ST85/V35FOM-20/48/ST85/V24FOM-20/48/ST13L/V24FOM-20/48/ST13L/V35FOM-20/48/FC85/V35FOM-20/230/ST15L/V35FOM-20/230/ST13L/V24FOM-20/115/ST15L/V35FOM-20/230/SC85/530FOM-20/48/FC13L/V24FOM-20/230/ST85/X21/BLANKFOM-20/230/FC13L/V36FOM-20/230/ST15L/V35FOM-20/230/ST85/V24/BLANKFOM-20/115/ST85/V24FOM-20/115/ST85/V35FOM-20/115/ST13L/V35FOM-20/48/ST13L/703/RJFOM-20/48/FC85/703/RJFOM-20/48/FC13L/X21/BLANKFOM-20/24/ST85/X21FOM-20/48/FC13L/703/RJFOM-20/115/SC13L/V24FOM-20/115/ST13L/V36FOM-20/115/SC15L/UTPFOM-20/230/SC13L/V24FOM-20/24/ST13L/V24FOM-20R/FC13L/V24FOM-20R/ST15L/V24FOM-20/115/ST13L/530/BBFOM-20/24/FC13L/V24FOM-20/48/ST13L/V36FOM-20/24/ST85/V24FOM-20/24/SC13L/V24FOM-20/230/ST13L/V24FOM-20/230/FC13L/530FOM-20/48/ST13L/530FOM-20/24/SC13L/703/RJFOM-20R/FC13L/UTPFOM-20/115/FC85/V24FOM-20/115/FC13L/V24FOM-20/115/FC13L/V35FOM-20/230/ST85/V24FOM-20/230/ST85/V35FOM-20/230/ST13L/X21FOM-20/230/FC85/V24FOM-20/230/ST85/UTPFOM-20/115/ST85/X21FOM-20/115/SC13L/V35FOM-20/230/FC85/V35FOM-20/230/FC85/X21FOM-20/230/FC13L/V24FOM-20/230/FC13L/V35FOM-20/230/ST85/530FOM-20/230/ST85/530/BLANKFOM-20/48/SC13L/V35FOM-20/230/ST85/703/TBFOM-20/115/ST85/703/TB)