Switching The High Side With External Power; Drive A Dc Relay To Control An Ac Load - Honeywell IF2 User Manual

+Output
- Output
Ground
Switching the Low Side of the Output Load

Switching the High Side With External Power

To use external power (5 to 48 VDC) to switch the high side, connect the Ground pin
to the ground system of the external power supply, and connect the positive side of
the external supply to the +Output pin. The external indicator lamp is connected to
the corresponding Output and Ground pins as shown in the next illustration.
+Output
- Output
Ground
Switching the High Side With External Power

Drive a DC Relay to Control an AC Load

While the IF2 outputs are designed to switch DC loads, they can drive relays that
control AC loads. The next illustration shows how to connect such a system to an
IF2 output.
IF2 Network Reader User Guide
+12 V
External
indicator lamp
0.25 A maximum
+ -
External
power
5-48 VDC
External
indicator
lamp
59