40-Pin IDC Ribbon Cable to (2) DB25 Male Connectors, 30-inch Length. Terminates a 40-pin header to two DB25 Male connectors. Designed for the PC/104 16 port RS-485 board (Item# 3562), the CA338 takes the 40-pin connector on the 3562 and breaks it out to two DB25 male connectors. This simplifies field wiring by using a common DB-style connector. A 25-pin terminal block (Item# TB04) can be used to break the DB-25 connector out to screw terminals.