Configure Output Screen: Digital

The APM Display allows you to configure outputs as either digital or analogue, depending on your application needs. Digital outputs are best for simple on/off signaling such as alarms or relays, while analogue outputs provide proportional data for monitoring and control systems. Click here to view the Analogue Output instructions.

Digital Output

Key Specs
Output Type:	Open Collector Transistor (NPN)
Maximum Current:	500mA (supports loads up to 12W)
Maximum Voltage:	24VDC
Configuration:	Can be set to Normally Open (NO) or Normally Closed (NC

Using the APM Link
This option is to be used when using the APM-Gateway for connection to the Trumeter Cloud. The APM Gateway is the remote monitoring solution tailored specifically for APMs. Use the APM Link for seamless integration and secure connectivity to Trumeter devices.

Wiring Notes
The APM SP1, and SP2 are NPN outputs: Use a 12-24VDC external relay and wire the plus connection directly to the relay. The (-) of PSU (12-24VDC only) needs to go to the common terminal. This signal (ground) will come out on SP1 or SP2 to turn on the external relay
Collector Output: The external relay or buzzer needs to be rated for 500mA current draw.

Wiring Notes

The APM SP1, and SP2 are NPN outputs:

Use a 12-24VDC external relay and wire the plus connection directly to the relay.
The (-) of PSU (12-24VDC only) needs to go to the common terminal.
This signal (ground) will come out on SP1 or SP2 to turn on the external relay

Collector Output:

The external relay or buzzer needs to be rated for 500mA current draw.