Chapter 2 Installation I/O Connections
PM135 Powermeter Series 31
Relay Outputs
There are two relay outputs provided for energy pulsing, alarms, or
remote control.
Figure 2-19 Relay Output Connection
Digital Inputs
Four optically isolated status inputs are provided for status monitoring,
pulse counting, external power demand period, and time synchronization.
Figure 2-20 Digital Input Connection