Figure 9-21.--Visual displays and audible outputs.

conditions: normal, alarm condition, or supervisory

place the module in either the NORM (NORMAL),

failure. The upper rectangular portion on the module

STBY (STANDBY), CUTOUT, or TEST mode.

panel gives the visual display of the circuit condition.

NORMAL MODE.-- The NORMAL mode is the

Each module contains a horizontally centered,

normal operating position of the mode switch. In this

mode, the upper display lamp is on (steady) and the

divided display that can present a steady or flashing

lower display lamp is off (dark). There will be no

red light or no light in either half of the display. All

audible signal. When the remote sensor contacts close,

light modes can be dimmed except the flashing mode.

an alarm condition occurs. During an alarm condition,

The upper half of the display shows the circuit

the upper display lamp flashes continuously and the

designation and the location of the sensor. The

lower display lamp remains off. The alarm module

condition of a remote sensor by the alarm module is

sends a command to the common alarm section. The

indicated by visual and audible signals. Figure 9-21

tone generator in the common alarm section activates

illustrates the visual and audible displays of an alarm

the alarm speaker, and a siren wail is heard.

module.

During a trouble condition, such as an open

Each module also has a four-position mode

circuit, with the mode switch in NORM, the alarm

selector switch. The mode selector switch is used to

module will signal a supervisory failure. In this

Figure 9-21.--Visual displays and audible outputs.

9-20