Pub. 42004-563A
E3 System Controllers
Page 6 of 16
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Table 1.
Elemec3
System Controller—Internal Components
Component
Description
Digital PCBA
Central processing unit, digital communications, speech recording, and
play-back to eliminate feedback
Analog PCBA
Audio amplification and routing
Telephone Interface PCBA
(-003 version only)
Interface from the
Elecmec3
system controller to the telephone system
Elemec3
Fuse PCBA
Protection for the system controller, access panel interfaces, and I/O
modules
Installation
Installation Safety Guidelines
Please adhere to all warnings, safety, and operating instructions on the unit and in the installation manual.
WARNING
•
Disconnect power before servicing—Do not disconnect the equipment while the circuit is energized.
•
Avoid servicing the unit during electrical storms.
•
Do not touch uninsulated wires.
Installation Guidelines
•
Notify plant personnel of a system shutdown prior to servicing the unit.
•
Disconnect power before installing or removing the system controller.
Mounting
Mount the
Elemec3
System Controller in the 19-inch rack using the supplied hardware. Each controller is
1.75 inches tall/1 U of rack height.
Field Connections
Input Power
The controller requires a 24 V dc power source capable of delivering 6.4 amps minimum.
1.
Remove the two-position plug from the
24VDC
IN
header (see Figure 3).
2.
Screw the dc power cable to the plug.
Observe the polarity marking on the rear of the unit.
3.
Install the plug into the
24VDC
IN
header.
Power applied to the
24VDC
IN
connector also powers the access panel interfaces, access panels, and
the I/O modules.
