Installation guide

RIO Network Hardware Components
86
890 USE 101 00 October 2006
Ground Blocks
Overview A cable system must be grounded at all times to assure safety and proper operation
of the nodes on the network. The RIO head processor grounds the cable system,
but if the cable is disconnected, that earth ground connection is removed. An
optional Modicon 60-0545-000 Ground Block at the head will provide earth ground
connection when the cable and RIO processor are disconnected. Ground blocks
may also be used at other ground points along the trunk cable, as required.
Note: Local building codes may require that the cable shield be tied to earth ground
whenever the cable system exits and/or enters a new building (NEC Article 820-
33).
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com