我关注的测试仪表厂商之Sifos，PoE测试

#最近看看行业各个厂商的网站，看看他们都在做什么#

先从Sifos开始，一直觉得这是家很特别的公司，在PoE测试这块是个无敌的存在。之前在上一家台资测试仪表公司的时候，也有推出过类似的基于产线验证的解决方案，最后因为功能跟Sifos比差了好几条街没法用在研发实验室，若是用在产线做QA测试又显得成本过于昂贵，所以最终也没出几台货，倒是那时候作为FAE的我，针对这玩意翻译了一堆的英文资料，还针对性的写了SOP出来，所以对Sifos这家公司印象是真深刻。

直接看Sifos的Solution

POE PSE测试
POE PD测试
Ethernet PHY Testing /以太网PHY测试

上面一个是POE的受电端模拟测试，一个是POE的供电端模拟，都是它的老本行业务，很好理解，无非就是看看他能支持到什么标准了，at，bf，到底能到多少watt；

第3个PHY测试有点奇奇怪怪的，....多少有点不务正业的感觉，然后点开看了看

Efficient Ethernet Compliance Testing of Ports with Gigabit PHY's

More productive, comprehensive, and cost effective testing of 10/100/1000 ports compared to traditional Gigabit PHY compliance test methods.

Evaluate 10/100/1000Base-T ports with plug’n play automation covering transmitter, receiver, and auto-neg integrity without the need for fixtures, probes, and test modes. Test up to 24 ports, that’s 96 gigabit pairs, in a single automated sequence.

PhyView Analyzer + PHY Performance Test Suite

Link Stability with 802.3 Worst Case Insertion Loss
Transmitter SNR
Transmitter Vpk-pk
Transmitter Power Spectral Distortion
Interface Return Loss and Crosstalk
Impaired Receiver Performance
Auto-Neg Timing and Link-Up Modes

Interop Verification

Go beyond traditional gigabit PHY compliance testing! Gain confidence that your 10/100/1000 Ethernet port will link with all possible link partners.

10/100/1000 Auto-Neg testing adds confidence that a gigabit PHY transceiver will cooperate with any possible link partner.

PhyView Analyzer + PHY Performance Test Suite

Assess all possible rate, duplex, and polarity modes
Assess link-up timing with millisecond precision
Evaluate link stability in MASTER/SLAVE configurations

Evaluate Link Stability in MDI/MDI-X modes

Impaired Receiver Testing

Go way beyond traditional Ethernet compliance testing! Quickly and automatically characterize receiver performance under worst case physical link conditions.

Evaluate receiver performance under controlled physical layer impairments to rapidly get a clear picture of receiver integrity relative to the current state of the art.

PhyView Analyzer + PHY Performance Test Suite

Emulate IEEE 802.3 worst-case insertion loss
Emulate controlled alien crosstalk-ingress noise
Emulate controlled timing jitter and frequency offset
Measure Link Stability / 1000Base-T Rx error indicate
Measure packet loss in bridged multi-port device

Manufacturing

Avoid quality issues in the field by automating acceptance tests for 10/100/1000 ports in finished products.

Create automated test scripts suited to your test coverage needs using the many stimulus and measurement resources of the PhyView Analyzer.

PhyView Analyzer

Intuitive and thoroughly documented PowerShell PSA development environment
High-throughput, multi-port PVA Veriphy test suite
Controlled physical layer impairments for fast receiver testing
Intelligent PowerShell PSA editor package

使用千兆 PHY 对端口进行高效以太网符合性测试

与传统的千兆 PHY 符合性测试方法相比，10/100/1000Mbps 端口测试更高效、更全面、更经济。

利用即插即用自动化功能评估 10/100/1000Base-T 端口，涵盖发射器、接收器和自动负完整性，无需夹具、探针和测试模式。在单个自动化序列中最多可测试 24 个端口，即 96 个千兆位对。

PhyView 分析仪+物理层性能测试套件

具有 802.3 最坏情况插入损耗的链路稳定性
发射机信噪比
发射机 Vpk-pk
发射机功率频谱失真
接口回波损耗和串音
受损的接收器性能
自动负定时和链接模式

互操作验证

超越传统的千兆 PHY 符合性测试！确信您的 10/100/1000 以太网端口能与所有可能的链接伙伴链接。

10/100/1000 Auto-Neg 测试可增强信心，确保千兆位 PHY 收发器能与任何可能的链接伙伴合作。

PhyView 分析仪 + 物理层性能测试套件

评估所有可能的速率、双工和极性模式
以毫秒级精度评估链路定时
评估主/从配置中的链路稳定性
评估 MDI/MDI-X 模式下的链路稳定性受损接收器测试超越传统的以太网符合性测试！在最恶劣的物理链路条件下快速自动鉴定接收器性能。评估受控物理层损伤下的接收器性能，以快速清楚地了解接收器相对于当前技术水平的完整性。
模拟 IEEE 802.3 最坏情况下的插入损耗
模拟受控的外来串入噪声
模拟受控定时抖动和频率偏移
测量链路稳定性/1000Base-T Rx 错误指示
测量桥接多端口设备中的数据包丢失