Det-Tronics EA2100CG Eagle 2000 Communication Gateway - Manual (Page 5)

INSTRUCTIONS
EAGLE 2000 ™
Hazard Event Monitoring System
Section I
System Overview
NOTE
This manual covers the basic operation of the
communication module, digital communication unit,
gateway, network extender and relay module. It
will not cover any specific detector, host device or
Operator Interface Station. Refer to the appropri-
ate instruction manual for complete information
relating to these devices. While this manual cov-
ers general practices and procedures for installa-
tion and wiring of the Eagle 2000 system, always
refer to the instruction manual provided with each
device for specific instructions.
APPLICATION
Det-Tronics’ Eagle 2000 is a state-of-the-art hazard
detection monitoring system consisting of any combina-
tion of addressable flame, gas or environmental detec-
tors. The system communicates through an RS422 or
RS232 serial port utilizing Modbus
® protocol to make the
system’s data available to a variety of host devices.
FEATURES
• Field addressable
• Utilizes industry standard Modbus protocol
• Comprehensive data acquisition
• Up to 250 devices per loop on a single twisted pair
of wires
• Accommodates a variety of devices with 4 to 20 ma
or relay contact inputs
• Non-volatile memory for alarm and calibration data
• Fault tolerant communication loop
• Built in diagnostics
• Compatible with Det-Tronics flame, gas or environ-
mental sensors
• Sensor sensitivity trending.
SYSTEM DESCRIPTION
The Eagle system can consist of the following components:
Detector
Communication Gateway (EA2100CG)
Digital Communication Unit (EA2200DCU)
Communication Module (EA2300CM)
Network Extender (EA2400NE)
Relay Module (EA2500RM)
A host device
Shielded twisted pair cable (22 AWG, Level 4) is used to
wire all nodes in a serial communication loop starting
and ending at the gateway. Refer to Figure 1.
DETECTOR
The Eagle system is compatible with a variety of detec-
tors including flame, combustible gas, toxic gas, oxy-
gen, and environmental monitoring devices. The output
of the detector can be a 4 to 20 ma signal, or a digital
contact signal such as a switch closure or relay contact.
DET
-
TRONICS ®
©
Detector Electronics Corporation 1999 7/99 95-8424-02
Modbus is a registered trademark of Modicon Inc.