32-Channel Relay Switch Module for SCXI—The SCXI‑1163R includes normally open, or Form A, optically isolated solid-state relays arranged into eight banks of four relays with one common pole for each bank. You can use the SCXI‑1163R to switch high-voltage loads. The SCXI‑1163R is programmed serially over the SCXIbus, so you can integrate SCXI‑1163R modules into existing SCXI systems without additional devices or cabling. The modules can operate in parallel mode when cabled directly to a plug-in digital I/O device.