Application Note 5: SMPTE RS-422 VTR/Editing Equipment Control
Hardware: A PC with Sealevel COMM+2.PCI Adapter (Part# 7201) or USB SeaPORT (Part# 2202, 2203, 2402, or 2403), connected to Studio Gear with a Sealevel CA190 cable. The CA190 cable is available for use with any Sealevel DB9 RS-422 serial adapter.