Honeywell 25/50ZS Manuel D’Utilisation

Audio Command Center Series Manual — P/N 51889:E1  6/8/2010

81

Application Examples

In this application, the system may also be manually activated via the keypad by selecting the 
Building Speakers zone push-button followed by the selection of the Fire Message push-button, or 
by using the microphone to make an announcement.  Refer to the Keypad example in Figure 5.1.

Single Output Zone, Single Input Channel (see Table 2.7 on page 37 for Message Control switch 
settings)

Another application consists of one ACC-25/50 Series with one amplifier and a single speaker cir-
cuit.  A second amplifier can be installed as a backup if desired.  This configuration is suitable for 
small facilities requiring no more than 25 watts of output power.  A single 60 second fire evacua-
tion message will be generated during an alarm condition from the host FACP or manually by a 
message push-button.

In this application, the NAC from the host FACP is connected to CMD1.  The CMD1 out terminals 
are then terminated with an EOL resistor for the FACP's Style Y NAC or the terminals are wired 
back to the host FACP for a Style Z NAC.  S3 DIP switches 1, 2 and 3 are set to OFF which causes 
a 60 second message to be sent to the speaker circuit when CMD1 input is activated.  S5 DIP 
switch 5 is set to OFF which causes CMD1 input to be activated by a reverse polarity condition.  
CMD3, CMD4, and CMD5 inputs require End-of-Line resistors and CMD2 cannot be used to trig-
ger the ACC-25/50.

IMPORTANT!  When CMD1 is configured for reverse polarity, the NAC cannot be Coded.

FACP ELR resistor
(for Style Y only)

Style Z

Style Z

a

c2

5

ap

p

5.

w

m

f

Note: Typical illustration of a Fire•Lite 
control panel.  Refer to the Command 
Input Specification in Section 1.2,  
”Specifications” on page 19, for the 
voltage range.

ELR Resistor required only 
for Style Y - Class B
4.75K

, 1 watt P/N:75470

4.7K

 ELR resistors (P/N: 27072)

Make no connections to CMD2 
(S5 DIP switch 6 is OFF)

4.7K

 ELR

Alarm Polarities Shown

Host FACP

NAC

Alarm Polarities Shown

Speaker      Backup

ac

c2

5k

yb

ln

k.

w

m

f