Programmable AC Source 6404/6408 Userās Manual
Before the instrument is turned on, all protective earth terminals,
extension cords, and devices connected to the instrument should be
connected to a protective earth ground. Any interruption of the
protective earth grounding will cause a potential shock hazard that
could result in personal injury.
2.7 I/O Connectors (Option)
GPIB RS-232
Figure 2-4 Figure 2-5
EXT PROG OPTION BOARD
Figure 2-6 Figure 2-7