In-Fixture TestScale Backplane—The TS-15000 features USB connectivity and includes five slots that you can use to add modules to your TestScale system within a rack. This backplane provides support for modules such as programmable power supplies and I/O modules. Additionally, the TS-15000 supports connectivity through standard 37-pin D-SUB and USB for communication with industrial PCs. One slot is reserved for the required core module.