Chapter 3: System operation
P/N 3102352-EN • REV 005 • ISS 28DEC18 133
Component descriptions
The control panel contains the following components.
Figure 55: Component layout
Description
Transformer: Changes 120 or 230 volt AC supply voltage to 24 volt AC.
Main AC wiring block and fuse holder: Provides connections for 120 or 230 volt AC (primary
power) from dedicated service. Includes a primary power fuse (5 A).
RS-232 card connector (J3): Provides a connection for the optional RS-
a printer or downloading from the configuration utility.
Dialer card connection (J8): Provides a connection for the optional dialer card.
Ethernet card connector (J1): Provides a connection for the optional Ethernet card.
Main circuit board: Provides connections for all circuits. Also includes the operator interface.
Panel backbox enclosure: Houses the panel electronics and standby batteries. In some cases,
the batteries may be housed in an external battery cabinet (BC-1).
Operator interface: Includes operator controls, LED indicators, and control buttons
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00:00:00 01/01/07
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