GE Energy
D400 Substation Data Manager User's Manual 47
High-Voltage Installations
To provide higher EMC immunity and maintain CE Mark compliance, the serial cables
used for permanent RS-232 and RS-485 connections must comply with the following
requirements:
• Cables must be shielded
• D-type connector covers must provide EMC shielding (e.g. metalized plastic or die
cast metal covers).