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扩束光连接器（EBO）的价值在维护，而不是单纯省布线时间

EBO 的真正价值是降低维护成本与停机时间，而不是让布线更快变现。

光互连连接器AI 集群

核心主张

EBO 的真正价值是降低维护成本与停机时间，而不是让布线更快变现。

EBO 用扩束光束避免端面接触，抗灰尘、插拔力低、密度更高；代价是插入损耗高于 MMC。布线提速不必然提前产生收入，因为机柜分批到货且调试耗时。

要点

原理

扩束光束跨过间隙传输，光纤端面不接触。

收益

抗灰尘、插拔力低、密度高，维护更快、停机更少。

代价

插入损耗高于 MMC，标准连接器目前更便宜。

共存判断

两种技术按密度、可维护性与光预算分工。

光背板

Senko 的 XBO 可自动断开与重连，减少人工插拔。

金句

Expanded Beam Optical (EBO) connectors send an expanded light beam across a small gap
扩束光连接器让扩束后的光束跨过一段小间隙传输。

We believe the biggest value is in maintenance
我们认为最大价值在维护。

faster cabling does not automatically mean earlier revenue
布线更快并不自动等于更早产生收入。

后续观察

ECOC 后续的 EBO 产品化进度
MMC 与 EBO 的成本曲线

01As optical interconnect expands across AI clusters, installing and maintaining fiber connections becomes a growing challenge. Expanded Beam Optical (EBO) connectors send an expanded light beam across a small gap, avoiding physical contact between fiber ends. (1/6)🧵随着光互连在 AI 集群中扩张，光纤连接的安装与维护正成为越来越大的挑战。扩束光（EBO）连接器让扩束后的光束跨过一段小间隙传输，避免光纤端面直接接触。(1/6)

02Lower sensitivity to dust reduces cleaning and inspection, saving installation labor. Low mating force helps increase connector density. We believe the biggest value is in maintenance: quicker servicing and less downtime. (2/6)对灰尘的敏感度更低，减少了清洁与检查，节省安装人工。插拔力低有助于提升连接器密度。我们认为最大价值在维护：检修更快、停机更少。(2/6)

03However, EBO has higher insertion loss than MMC, which retains an advantage when optical budgets are tight. Standard connectors also currently cost less. We expect both technologies to coexist, depending on density, serviceability and optical budget. (3/6)不过 EBO 的插入损耗高于 MMC，在光预算紧张时 MMC 仍有优势。标准连接器目前成本也更低。我们预计两种技术会共存，取决于密度、可维护性与光预算。(3/6)

04Also, faster cabling does not automatically mean earlier revenue. Compute racks often arrive a few at a time, crews work in parallel, and commissioning still takes time. Labor savings remain, but their impact on time-to-revenue depends on the deployment. (4/6)另外，布线更快并不自动等于更早产生收入。算力机柜往往分批到货，施工队并行作业，调试仍需要时间。人工节省依然存在，但对「变现时间」的影响取决于具体部署。(4/6)

05As a side note, EBO also enables optical backplane as cleaning is very difficult with no clear access. Senko showed its XBO optical backplane connector based on EBO at ECOC, automatically disconnecting and remating. This points towards less manual connector handling during servicing, with adoption still dependent on system design and qualification. (5/6)顺带一提，EBO 还使光背板成为可能，因为在没有明确操作空间的情况下清洁非常困难。Senko 在 ECOC 上展示了基于 EBO 的 XBO 光背板连接器，可自动断开与重新对接。这意味着检修时的人工插拔会更少，但采用仍取决于系统设计与验证。(5/6)

06To learn more about EBO and the developments we saw at ECOC, please check our networking model (6/6)想进一步了解 EBO 以及我们在 ECOC 看到的进展，请查看我们的网络模型。(6/6)

As optical interconnect expands across AI clusters, installing and maintaining fiber connections becomes a growing challenge. Expanded Beam Optical (EBO) connectors send an expanded light beam across a small gap, avoiding physical contact between fiber ends. (1/6)🧵

Lower sensitivity to dust reduces cleaning and inspection, saving installation labor. Low mating force helps increase connector density. We believe the biggest value is in maintenance: quicker servicing and less downtime. (2/6)

However, EBO has higher insertion loss than MMC, which retains an advantage when optical budgets are tight. Standard connectors also currently cost less. We expect both technologies to coexist, depending on density, serviceability and optical budget. (3/6)

Also, faster cabling does not automatically mean earlier revenue. Compute racks often arrive a few at a time, crews work in parallel, and commissioning still takes time. Labor savings remain, but their impact on time-to-revenue depends on the deployment. (4/6)

As a side note, EBO also enables optical backplane as cleaning is very difficult with no clear access. Senko showed its XBO optical backplane connector based on EBO at ECOC, automatically disconnecting and remating. This points towards less manual connector handling during servicing, with adoption still dependent on system design and qualification. (5/6)

To learn more about EBO and the developments we saw at ECOC, please check our networking model (6/6)

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