Chapter 3: System operation
P/N 3102351-EN • REV 005 • ISS 28DEC18 139
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
SLC card connector (J14): Provides a connection for an additional SLC card (only on the VS4
panel).
Class A card connector (J2): Provides a connection for the optional Class A card (only on the
VS1 panel)
Tie wrap mounts: Used to secure wires and to help maintain proper separation between power-
limited and nonpower-limited conductors
LED expander connector (J6): Provides a connection for the optional LED expander
Standby batteries: Provide secondary/standby power to the panel electronics in the absence of
primary power
Events with event messages
Table 42: Events with event messages
LCD Printer [1]
Active type reporting
Input smoke Alarm active SMK ACT
Input smoke verified Alarm active SMK ACT
Input heat Heat alarm HEAT ACT
Input heat rate of rise Heat alarm HEAT ACT
Input duct alarm Alarm active DUCT ACT
Input pull station Pull station alarm PULL ACT
Input waterflow Waterflow WFLW ACT
Input waterflow retard Waterflow WFLW ACT
CO alarm Gas CO active COAL ACT
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