Keysight is a communications test and measurement company, and it generally explains its solutions in two major categories based on the types of networks its customers build and test.
1) Wireline
- Meaning: Wired communications based on copper cables and optical fiber
- Main sources of customer demand:
- Ultra-high-speed connectivity inside AI data centers (800G → 1.6T Ethernet)
- Optical interconnects (CPO, silicon photonics)
- AI server cluster networks that connect hundreds of thousands of GPUs into one system
- Enterprise and telecom backbone broadband networks
- Keysight solutions: High-speed signal integrity testing, optical testing, Ethernet protocol testing, real-world AI workload emulation, etc.
2) Wireless
- Meaning: Wireless communications using air/radio waves
- Main sources of customer demand:
- 5G/6G base stations, smartphones, and Wi-Fi
- Satellite communications (NTN, LEO, Direct-to-Cell)
- AI edge computing, automotive, and aerospace wireless connectivity
- Keysight solutions: RF signal testing, antenna testing, 6G research equipment, etc.
- Wireless still delivered healthy growth this quarter, but it was relatively outpaced by Wireline due to the AI boom.
Why did Wireline surpass Wireless for the first time this quarter?
- Because of explosive investment in AI data centers
- Running massive AI models like ChatGPT requires enormous amounts of ultra-high-speed wired connectivity inside data centers (something wireless simply cannot deliver at that scale)
- As a result, Wireline orders reached an all-time high and exceeded Wireless
(Wireline has already posted growth for nine consecutive quarters)
- Wireless = radio-based networks in the air (5G/6G)
- Wireline = ultra-high-speed cable/fiber networks on the ground (the heart of AI data centers)
From Keysight’s perspective, Wireline is the hottest revenue driver right now.
AI infrastructure investment is driving a simultaneous surge in both R&D and manufacturing test demand, which is what led to record orders.
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