Optically Isolated Output Circuit Sketch - Agilent Technologies VS Series Operation Manual

PIN No. Signal Name
25 PARALLEL_ENABLE_IN
Figure 3-1 shows the output circuit sketch. Level outputs are optically isolated emitter
followers with 10 Ohm series resistors, and a 14 mA max drive current (24 VDC max).
VS Series Component Leak Detector
Table 3-1 I/O Connector Pin Signals (Continued)
I/O
I
Figure 3-1 Optically Isolated Output Circuit Sketch
Level Description
LEVEL Active HIGH when
ENABLE is active.
Leak Detector
Behavior
Activation causes
the leak detector to
take inputs only
from the rear panel
I/O or RS-232 port.
No control
functions (inputs)
from the front
panel.
3-5