SCXI-1333/1334/1336/1339 Wiring Maps Note to Users
The terminal names on the circuit board differ from those on the wiring guide located on the underside of the terminal block lid. Refer to the following tables to determine how the circuit board corresponds to the wiring guide. Edition Date: February-2001 URL: http://digital.ni.com/manuals.nsf/websearch/73EDA2FF25D9C54A862569EC007402E0

Installation Guide: Replacing the NI 2591 Relay Module
The NI 2591 is constructed so that you can replace the relay module when the relays fail. The life of the relay is nominally 105 operations when switching the maximum-rated load. Edition Date: January-2001 URL: http://digital.ni.com/manuals.nsf/websearch/7CA788176BE46551862569C8005731E8