Digital I/O; Digital Input (Trigger Link Input) - Keithley 2701 User Manual

Model 2701 User's Manual

Digital I/O

Model 2701's Digital I/O port is accessed at a male DB-9 connector located on the rear
panel. The connector location and pin designations are shown in Figure 9-2.
Figure 9-2
Digital I/O port
DIGITAL I/O
(EXT. TRIG.)

Digital input (trigger link input)

When enabled, the Trigger In (pin 6) and Digital Ground (pin 9) can be used as the trigger
link input for external triggering. Pin 6 is physically connected to the input line (pin 2) of
the TRIG LINK connector.
Pin 8 of the digital I/O is used to enable or disable Trigger In. Trigger In is enabled by
leaving pin 8 open or pulling it high (+5V). Trigger In is disabled by setting pin 8 low
(0V).
NOTE
Model 2701
Link/Act 100bT
!
TRIGGER ETHERNET RS-232
LINK 10/100 BaseT
External triggering is covered in Section 8.
!
~LINE RATING
50, 60, 400Hz
SLT 80VA MAX
1
SLT
2
Limits and Digital I/O 9-5