Installation Guide

6
ACT Coupler Unit Installation (CAM3M Only)
This chapter covers the following topics:
■
Removing the CGR from the Pole
■
Reinstalling the CGR
■
Installing the ACT Coupler Unit
Adaptive Communication Technology (ACT) Coupler Unit
Function
The Adaptive Communication Technology (ACT) Coupler Unit, in general, provides electrical
isolation and signal conditioning between a CAM3M and the power line. It is connected to the
low voltage (120/240VAC) side of the local transformer to enable Power Line Carrier (PLC)
communications to the meters on that circuit.
To install the CGR refer to the CGR installation procedure in the Cisco 1240 Connected Grid
Router Hardware Installation Guide.
Removing the CGR from the Pole
Before the installing the ACT Coupler Unit, you must first disconnect the Power, the Ground
Cable, physically unmount the CGR, and remove the CGR mounting bracket.
Warning! After removing the CGR from the pole, place the CGR on an electrostatic
discharge (ESD) protected mat to prevent personal injury and/or damage to the
electronic components.
1. Disconnect the power. See Disconnecting Power to the CGR.
2. Remove the 6AWG Ground Cable, see item 2, located on the bottom right side of the CGR
by removing the two screws from the ground lug, see item 1.
02 March 2020 815-0080-00 Itron, Inc. Page 60 of 102