Edwards 3-IDC8/4 - User Manual

© 2014 UTC Fire & Security Americas Corporation, Inc. 1 / 4 P/N 270492-EN • REV 04 • ISS 10JUL14
3-IDC8/4 Traditional Zone I/O Module
Installation Sheet
Description
The 3-IDC8/4 Traditional Zone I/O Module provides eight
Class B traditional direct connect initiating device circuits
(IDCs) for compatible two-wire smoke detectors and dry
contact initiating devices. Four of the initiating device circuits
can be converted to Class B notification appliance circuits
(NACs). The four IDC/NAC circuits must be configured as
either an NAC or an IDC, never both.
Each IDC can be set for latching or nonlatching operation and
smoke verified or unverified operation using the software
definition utility.
Each pair of NAC circuits may be configured to provide
24 VDC from the internal chassis rail, 24 VDC from an external
power supply, or signals from an external source for
notification, audio, and telephone applications. NAC input
terminals are provided to supply the external signal source.
Installation
Install and wire the 3-IDC8/4 in accordance with applicable
national and local codes, ordinances, and regulations.
WARNING: Electrocution hazard. To avoid personal injury or
death from electrocution, remove all sources of power and
allow stored energy to discharge before installing or removing
equipment.
Caution: Equipment damage hazard. This product is sensitive
to electrostatic discharge (ESD). To avoid damage, follow
accepted ESD handling procedures
To install the 3-IDC8/4:
1. If circuits are configured as NACs, position jumpers at the
correct locations for an internal or external riser source.
See “Jumper settings” on page 2.
2. Install the module on the rail chassis, pressing the
mounting studs firmly into the mounting holes. See
Figure 1.
3. Connect field wiring. See “Wiring” on page 2.
Figure 1: Installing the 3-IDC8/4
(1) Mounting studs
I
D
C
/
N
A
C
I
D
C
/
N
A
C
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
1
5
2
3
7
4
8
6
I
D
C
/
N
A
C
I
D
C
/
N
A
C
I
D
C
I
D
C
I
D
C
I
D
C
N
A
C
I
N
N
A
C
I
N
1
/
2
5
/
6
R
X
T
X
T
B1
T
B
2
J
P1
J
P
2
J
P
3
J
P
4
(1)
(1)

Summary

Product Description

Module Overview

Details the 3-IDC8/4 Traditional Zone I/O Module's capabilities and circuit configurations for initiating devices and notification appliances.

Installation and Configuration

Installation Steps

Guidance on installing the 3-IDC8/4 module on a rail chassis and connecting field wiring according to codes.

Safety Precautions

Important warnings regarding electrocution hazards and electrostatic discharge (ESD) during installation and handling.

Jumper Settings and Wiring

Jumper Configuration

Explains jumper settings for selecting power/signal sources for NAC pairs and notes their irrelevance for IDC circuits.

Field Wiring

Detailed instructions for connecting field wiring, including separation, shielded cable, and dedicated IDC circuits.

Specifications and Compliance

Technical Specifications

Provides detailed specifications for quantity, voltage, current, capacitance, EOLR, and environmental factors.

Regulatory Information

Lists compliance standards, certifications, FCC rules, and environmental class for the module.

Edwards 3-IDC8/4 Specifications

General

Brand	Edwards
Model	3-IDC8/4
Category	I/O Systems
Language	English