458-AWGN2 VDSL 噪聲源
Model 4901系統(tǒng)配備了用戶界面友好的控制軟件,便于用戶自行選定及建立多種不同的針對(duì)DSL網(wǎng)絡(luò)應(yīng)用的損傷模型。Model 4901的共模串?dāng)_(Common crosstalk) 類型中涵蓋了ADSL2+, VDSL2 以及其他諸多技術(shù),而用戶自定義串?dāng)_功能也完全符合DSL線路上的目標(biāo)PSD的規(guī)范。利用MATLAB (.mat) 或者 Excel (.xls) 文件,用戶能以 dBm/Hz 和相應(yīng)的頻率數(shù)值方式添加目標(biāo)PSD。該特性能夠幫助用戶產(chǎn)生滿足在DSL線路上所期望的PSD的串?dāng)_以及任意RFI tones的組合。

Simulates 26 AWG PIC as specified in ANSI T1.417
Bandwidth to 4.5 MHz
8 channels per line module
Channel 1: loop lengths programmable from 0 to 31,750 ft in 250-ft increments
Channel 2 - 8: loop lengths programmable from 0 to 30,000 ft in 2,000-ft increments
Plugs into our Model 458-CC-16 (16-slot) or 458-3SLB (3-slot) chassis
Channel-to-channel isolation up to 90dB
Ability to open loop at either end of any channel

Type of Wire: 26 AWG
Number of Lines: 8- or 12-line options
Reach: 0, 250 ft to 15 kft
Variable Reach per Line: 250ft increments to 4 kft, 500ft increments from 4 kft to 15 kft
Increments: Variable depending on length setting
Bandwidth: 20KHz to 30MHz
DC Rating: 100 VDC Max. Tip-to-Ring
Attenuation (Insertion Loss): MAE < 1dB (20KHz to 30MHz) Typically simulation vs. theory
Channel To Channel Accuracy: MAE < 0.5 dB to ensure repeatable performance between channels
Usable Attenuation Range: 0 to–90 dB
Impedance: ± 10% (20KHz - 30MHz)
Control Remote control: via RS-232
Connections Shielded: RJ-45 jacks to minimize crosstalk

網(wǎng)絡(luò)性能測試儀無論是在室內(nèi)的測試服務(wù)、還是現(xiàn)場的工作,都可以準(zhǔn)確無誤的給出測試結(jié)果。
高準(zhǔn)確度和可復(fù)現(xiàn)性保證了網(wǎng)絡(luò)部署后的良好性能
節(jié)省時(shí)間,還可以隨時(shí)訪問標(biāo)準(zhǔn)定義的噪聲包數(shù)據(jù)庫
不論是世界各地的網(wǎng)絡(luò)設(shè)備生產(chǎn)商,芯片供應(yīng)商還是服務(wù)提供商,使用思博倫的同類產(chǎn)品,都能保證測試結(jié)果的一致性。