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Automate Lab Connectivity Across Speeds and Media Types
Test labs that support multiple projects, teams, and interface speeds need a way to reconfigure physical connectivity without manual patching. Modular Automation Switches address this by combining Layer 1 optical-electrical-optical (OEO) matrix switching with a pay-as-you-grow chassis architecture. Three chassis options — 1, 3, and 12 slots — scale from 96 to 1,152 ports of 10 GbE, supporting Ethernet and six additional protocols through interchangeable blade modules. Controlled by Velocity Core or third-party automation systems, the switches integrate into existing lab workflows to enable remote, secure access to test beds from anywhere.
Scalable Chassis Architecture
Choose a 1-, 3-, or 12-slot chassis and add blades as port requirements grow — no forklift upgrades required.
Multi-Protocol Flexibility
Switch Ethernet, CPRI, SAS, Fibre Channel, OTN, SONET, and OC traffic through a single non-blocking fabric.
Remote Topology Management
Set up, execute, and tear down test scenarios from any location through Velocity Core or third-party automation software.
Redundant by Design
The 3903 and 3912 chassis deliver fully redundant power and control for high-availability lab environments.
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Matrix Switch
Layer-1, Non-blocking, OEO, xSL expansion
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Max number of 10 Gb ports
96 to 1152
Popular Configurations
Velocity 3901 Automation Switch
The Velocity 3901 is a 1-slot Layer 1 automation switch with up to 96 ports of 10 GbE for managing test lab connectivity and topology.
The Velocity 3901 is a 1-slot Layer 1 automation switch with up to 96 ports of 10 GbE for managing test lab connectivity and topology.
Velocity 3903 Automation Switch
The Velocity 3903 is a 3-slot Layer 1 automation switch with up to 288 ports of 10 GbE, redundant power, and multi-protocol support.
The Velocity 3903 is a 3-slot Layer 1 automation switch with up to 288 ports of 10 GbE, redundant power, and multi-protocol support.
Velocity 3912 Automation Switch
The Velocity 3912 is a 12-slot Layer 1 automation switch scaling to 1,152 ports of 10 GbE with redundant power and cross switch links.
The Velocity 3912 is a 12-slot Layer 1 automation switch scaling to 1,152 ports of 10 GbE with redundant power and cross switch links.
Data Sheet
Velocity 3900 Series SwitchesChassis and blade specs for all three modular switch models.
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Frequently Asked Questions
Three chassis options are available. The 3901 is a single-slot, 1 rack unit (RU) chassis. The 3903 is a 3-slot, 3 RU chassis with fully redundant power and control. The 3912 is a 12-slot, 16 RU chassis with fully redundant power and control, pluggable Switch Fabric Modules (SFMs), and cross switch link (xSL) support for multi-chassis topologies.
All three chassis support two blade types. The S-Blade Pro provides 24 Quad Small Form-factor Pluggable Plus (QSFP+) ports per blade with network impairment and utilization metrics features. The S-Blade 64 provides 32 Small Form-factor Pluggable Plus (SFP+) ports and 8 QSFP+ ports per blade with ultra low-latency Layer 1 connectivity (<5 ns).
The switches support Ethernet, Common Public Radio Interface (CPRI), Serial Attached SCSI (SAS), Optical Carrier (OC), Fibre Channel (FC), Optical Transport Network (OTN), and SONET. The software-adjustable any-rate blades handle these protocols through a single non-blocking switching fabric.
Yes. The modular automation switches can be controlled by Velocity Core for centralized lab management or by third-party automation systems. Velocity Core provides centralized topology management, reservation-based scheduling, and just-in-time provisioning.