Spirent
Spirent Communications is a manufacturer of automated test equipment. Spirent's products are created for applications in networks, security, and positioning.
SmartBits
The Spirent SmartBits modules are modular devices, which include chassis, Ethernet modules, performance analysis systems, and more.
AX4000
The AX/4000 Series from Spirent a modular system with multiple ports that is designed for optimal flexibility and scalability. The wide range of modules from the AX/4000 series are able to test several transmission technologies, including ATM, IP, Ethernet and frame relay.