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Since the original design of the 3300 monitoring system, the Serial Data Interface/Dynamic Data Interface (SDI/DDI) communication protocols have been added.

As a result, there are now three different 3300 configurations in the field: Original, Mixed, and SDI/DDI configurations. The purpose of this Compatibility Guide is to assist field personnel with the identification of each configuration and to explain the differences between these configurations. This document is not intended to be an upgrade guide to change from one configuration to another.

The 3300 system has been enhanced to upgrade the computer/communications interface options. The 3300/03 SDI/DDI communication protocols were released in April 1992 with external SDIX/DDIX, TDIX and TDXnet ™ communication processors released in August 1992, July 1993 and December 1997, respectively. The internal Transient Data enabled (TDe) communications processor was released in July 2004. 3300 components that have been changed to implement these interface options are the System Monitor, AC and DC Power Supply, Rack Backplane, and individual monitor firmware. 3300
systems that consist of all the upgraded components are referred to as an SDI/DDI system or TDe system. The SDI/DDI system uses the 3300/03 System Monitor and the TDe system uses the 3300/02 System Monitor.

The information in this guide is divided into these two sections:
Section 2, System Identification, lists the four configurations of the 3300 Monitoring System which are authorized by Bently Nevada LLC and shows how to identify each one. Identifying your system will help you make decisions about replacement parts and computer/communications interfaces. Section 3, System Compatibility, describes the compatibility between 3300 systems, communication interfaces, and monitoring and diagnostic software.

Table 1 on the following page shows some definitions and explanations for the part numbers and abbreviations used in this guide.

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