SD39EAM-1r4 Introduction
September 2005 1-1
1 Introduction
This Instruction provides installation and service information for the APACS+™ Enhanced Analog
Module (EAM) Model 39EAMBAN and its associated I/O termination hardware as listed in Table 6-2.
This Instruction is divided into six major sections as follows:
• Section 1, Introduction - Provides product description and related literature sections
• Section 2, Installation - Describes mechanical and electrical installation.
• Section 3, Maintenance - Consists of preventive maintenance, troubleshooting, assembly replacement
procedures, and spare and replacement parts suggestions.
• Section 4, Circuit Description - Gives a brief system description of the EAM.
• Section 5, Accessories and Options - Provides Model Designation, and tables of accessories and
options.
• Section 6, Specifications - Consists of mechanical, electrical, and environmental specifications.
1.1 Product Description
The Enhanced Analog Module (EAM) is a plug-in I/O module which is part of the APACS+ series of
control, interface and I/O modules. The EAM is capable of communicating with an APACS+ control
module (ACM) way of the IOBUS. The EAM processes 16 field I/O signals. Figure 1-1 shows the EAM
and its associated assemblies and cables.
The EAM Termination Strip and EAM Marshalled Termination Assembly each provide channel-to-
channel and channel-to-ground isolated terminations for 16 channels of I/O. Each EAM channel can be
separately configured using the 4-mation™ configuration software to be one of the following channel
types:
• Analog Input/Output
• Frequency Input
• Totalizer Input
• Discrete Input/Output
When a controller configuration is downloaded from a computer running 4-mation to a control module,
the EAM portion of the configuration is automatically copied from the control module to the EAM. The
control module retains a copy of the EAM configuration. This permits the on-line removal and
replacement of the EAM without the need for reconfiguration.
EAM diagnostics can identify field and board level problems. All errors detected by the diagnostics are
reported to the controller which maintains a current error log that can be accessed by 4-mation. EAM
status is shown by “OK” and “ACTIVE” LED indicators located on the bezel.
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