Article Overview
PAM4 core switches, supporting 50G to 1.6T optical interconnects, are available in Vietnam through international vendors like Marvell and Prospettiva Cyber Systems.
Overview of PAM4 Technology
PAM4 (Pulse-Amplitude Modulation 4-Level) is a high-speed signaling technology that encodes two bits per symbol using four voltage levels, effectively doubling the data rate compared to traditional NRZ (PAM2) signaling at the same baud rate . It is widely used in 50G, 100G, 400G, 800G, and 1.6T optical modules for data center and AI network applications . PAM4 enables high bandwidth efficiency, lower cost per bit, and support for cloud-scale interconnects.
Vendors and Products
- Marvell Technology: Offers a comprehensive portfolio of network switches and PAM4 optical DSPs suitable for hyperscale data centers, AI infrastructure, and enterprise networks. Their PAM4-enabled platforms support high-speed interconnects and are designed for global deployment, including Vietnam .
- Prospettiva Cyber Systems (PCS): Supplies industrial Ethernet switches, PoE switches, and PAM4 optical modules. Their low-power optical DSPs support 50G to 1.6T PAM4 transceivers and active optical cables, optimized for cloud-scale and AI networks. PCS modules use QSFP28 or higher form factors with single-mode fiber interfaces .
- Huawei: Provides 50G PAM4-based switches and optical modules for 400GE, 200GE, and 50GE interfaces. Their PAM4 technology improves bandwidth utilization and is suitable for core, aggregation, and access networks in enterprise and telecom deployments .
Local Availability in Vietnam
While specific Vietnam-based distributors are not explicitly listed in the sources, international vendors like Marvell, Huawei, and PCS typically supply PAM4 switches and modules to Vietnam through authorized resellers, system integrators, or direct enterprise sales channels. Companies deploying data centers, AI infrastructure, or cloud networks in Vietnam can procure these PAM4-enabled switches and optical modules through local partners or regional offices.
Key Considerations
- Data Rate: PAM4 switches support 50G, 100G, 400G, 800G, and 1.6T per lane, depending on the module and switch platform .
- Form Factor: QSFP28, QSFP-DD, and other pluggable modules are commonly used.
- Power Efficiency: Low-power PAM4 DSPs reduce energy consumption in high-density deployments .
- Compatibility: Ensure the switch supports the required optical modules and network protocols for your data center or AI workloads. For deployment in Vietnam, contacting authorized resellers or regional offices of Marvell, Huawei, or PCS is recommended to confirm availability, pricing, and technical support.
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