HP 75000 Series-C 256-Channel Relay Multiplexer Reconfigurable E8460AHP 75000 Series C E8460A 256 Channel Relay Multiplexer, Reconfigurable The HP E8460A is a high density, reconfigurable 256 channel relay multiplexer module designed for the HP 75000 Series C test system platform. It is ideal for automated test applications requiring large scale signal routing, including semiconductor, RF, and high speed digital device testing. Key Specifications Brand: HP (Hewlett Packard) Model: E8460A Series: 75000 Series C