The 60-555 is a high density double pole 512x8 Matrix Module suitable for signal routing in large ATE systems. It is easily expanded further to produce larger matrix sizes, for instance, two units can be linked to create a 1024x8 matrix. The 60-556 has an identical architecture to the 60-555 but has a 4-way instead of an 8-way Y-bus.
The matrix is constructed from 64x8 or 64x4 sub assemblies, permitting the matrix to be supplied in a variety of sizes from 192 to 512 X connections in increments of 64.