User Manual

Chapter 3 Communication 13
Input / Output ports options
Before I/O Module installation ensure that all incoming power
sources are shut OFF. Failure to observe this practice can
result in serious or even fatal injury and damage to
equipment.
On b oard I/O p o rt s
LOG IC/ D I SPLA Y
The PowerSmart Socket PQM LOGIC/DISPLAY board is equipped with two fast Dry contact
detector – Digital Inputs 2DI unit, providing wet contact voltage of 24VDC, RS-485
communication port COM3 and USB device port.
Figure 1 4: LOGIC/ D I SPLAY Cab l e
2DI
Two On Board optically isolated digital inputs are provided for status monitoring and
external synchronization of power demand period and time. Dry contacts may be connected
to these inputs, as shown in Figures 15
For ratings, see Appendix: Technical Specifications.
Figur e 15: 2D I LOG I C/D I S P LAY STA T U S I n p u t Co n n e c t ion
K Y Z re l ay
The meter includes one Form C relayl output. It can be used to send KYZ pulsing
information to third party system equipment, accessible from meter base blades
contacts.
For ratings, see Appendix: Technical Specifications