Manual Conventions Introduction
1-4 Introduction TM-iX0A-0805
Applicable Standards
The iCon APX meter meets or exceeds the ANSI standards for commercial and industrial
electricity metering.
Table 1-1: Applicable Standards
ANSI C12.1 – 2001 American National Standard Code for Electricity Metering
ANSI C12.13-1991 American National Standard Code for Electronic Time-of-Use
Registers for Electricity Meters
ANSI C12.18-1996 American National Standard Code for Protocol Specification for
ANSI Type 2 Optical Port
*ANSI C12.19 - 1997 American National Standard Code for Utility Industry End Device
Data Tables
*ANSI C12.20 – 2002 American National Standard Code for Electricity Meters
0.2 and 0.5 Accuracy Classes
ANSI C12.21-1999 American National Standard Code for Protocol Specification for
Telephone Modem Communication
ANSI/IEEE C37.90 –1989 IEEE Standard Surge Withstand Capability (SWC) for Protective
Relays and Relay Systems
* - The iCon™ APX conforms to the standards, however the meters are not governed by them.