Chapter 3: System operation
Vigilant VS1 and VS2 Technical Reference Manual 143
Component descriptions
The control panel contains the following components.
Figure 54: Component layout
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2
3
4
5
8
7
9
10
6
11
12
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00:00:00 01/01/07
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Item Description
1 Transformer: Changes 120 or 230 volt AC supply voltage to 24 volt AC.
2 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).
3 RS-232 card connector (J3): Provides a connection for the optional RS-232 card for
connecting a printer or downloading from the configuration utility.
4 Dialer card connection (J8): Provides a connection for the optional dialer card.
5 Ethernet card connector (J1): Provides a connection for the optional Ethernet card.
6 Main circuit board: Provides connections for all circuits. Also includes the operator
interface.
7 Cabinet enclosure: Houses the panel electronics and standby batteries. In some
cases, the batteries may be housed in an external battery cabinet (BC-3).
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