Modular R&S OSP gives test engineers options for setting up RF wiring configurations and controlling them manually or via computer. By offering 16 differential RS-422 outputs and 4 analog output voltages, I/O module also enables control of external equipment via differential lines. Transfer relay modules (DPDT) each have 2 SMA or N relays. Non-terminated octuple changeover relay (SP8T) and bistable versions of universal SPDT and SP6T monostable relay modules are also available.