portant; position: unset !important;">FRM220-E1/ET100是一款卡片式的经济型E1网桥设备,能将一路10/100baseTX或 100base-FX 局域网数据转换到一路E1上进行传输。FRM220-E1/ET100支持2.048Mbps速率。FRM220-E1/ET100在双绞线或同轴电缆上传输时允许43dB的衰减,传输距离达2km /22AWG。FRM220-E1/ET100支持 ITU-T G.703和 G.823等标准。 FRM220-E1/ET100 支持本地及远端环回诊断能力,在有两个FRM220-E1/ET100的线路任意一段可以进行数字环回的线路测试。以太网接口支持自动协商和强制工作模式,支持自识别网线功能,即插即用,以太网连接不需要任何附加配置
portant; position: unset !important;">功能特性
portant; position: unset !important;">支持速率为2.048Mbps
portant; position: unset !important;">支持自动协商和强制工作模式
portant; position: unset !important;">支持非平衡E1/BNC或平衡E1/RJ45
portant; position: unset !important;">完全兼容FRM220A-CH20机框
portant; position: unset !important;">支持SNMP FRM220A-CH20机框统一管理
portant; position: unset !important;">支持完整的LED报警指示
portant; position: unset !important;">接口技术规格
portant; position: unset !important;">E1线路
portant; position: unset !important;">帧格式:成帧/非帧
portant; position: unset !important;">标准:ITU-T G.703/G.704/G.706 & G.732, G.823
portant; position: unset !important;">比特率:2.048Mbps± 50ppm
portant; position: unset !important;">线路码:HDB3
portant; position: unset !important;">时钟设置:Internal OSC or recovery clock
portant; position: unset !important;">抖动性能:兼容ITU-T G.823
portant; position: unset !important;">发送电平:
portant; position: unset !important;">“脉冲”幅度:2.37V ± 10% 75 ohm
portant; position: unset !important;">3.00V ± 10% 120ohm
portant; position: unset !important;">
portant; position: unset !important;">“0” 幅度:±0.1V
portant; position: unset !important;">E1接口:RJ45, BNC
portant; position: unset !important;">以太网接口
portant; position: unset !important;">以太网标准:IEEE 802.3, 802.3u
portant; position: unset !important;">以太网速率:10/100base-TX, Half/Full duplex
portant; position: unset !important;">以太网接口:RJ45 10/100base-TX
portant; position: unset !important;">指示灯:
portant; position: unset !important;">电源报警、信号丢失、E1告警(AIS,LOF, RAI, LOMF),
portant; position: unset !important;">以太网连接/ACT, 10/100M , SD(100base-FX)
portant; position: unset !important;">电源:AC adapter : 100~240VAC to 12VDC
portant; position: unset !important;">功耗:< 12W
portant; position: unset !important;">尺寸: 160 x 88 x 24mm (D x W x H)
portant; position: unset !important;">重量: 280g,
portant; position: unset !important;">温度:0 ~ 50°C (操作), -10 ~ 70°C (存储)
portant; position: unset !important;">湿度:10 ~ 90% RH (无冷凝)
portant; position: unset !important;">认证:CE, FCC, RoHS
portant; position: unset !important;">MTBF:6,5000 hrs (25°C)