Product description
1.2
QS4 Technical Reference Manual
System overview
System hardware capabilities
Hardware capabilities vary depending on cabinet
size and option card configuration, but generally:
• Up to four Class A or Class B Signature
signaling line circuits that support up to 250
single-address Signature devices each
• Up to 40 Class A or 48 Class B initiating device
circuits (IDC). Combination systems can not
exceed 40 IDC circuits total
• Up to 16 Class A or 20 Class B notification
appliance
• Up to two 30-zone displays
• Up to 96 dry-contact relay
• 4.5 amps of 24 Vdc power for external
notification appliances
• Battery charger capable of charging batteries
rated up to 40 Ah. Maximum battery size for
ULC applications is 30 Ah
• Up to eight, fully-supervised, mirrored or
customized remote annunciators
Minimum system requirements
A Local Protected Premises Fire Alarm System
requires only the FACP (CPU, PS6, and
enclosure) with at least one SLIC, ZB16–4, or
ZA8–2 card programmed with at least one audible
output circuit and one alarm input circuit.
In addition to the hardware requirements of a
Local system:
• Add a 2–CTM City Tie Module for an Auxiliary
Fire Alarm System
• Add a DLD Dual Line Dialer Card or RPM
Reverse Polarity Module for a Remote
Supervising Station Fire Alarm System
• Add a DLD Dual Line Dialer Card or RPM
Reverse Polarity Module for a Central Station
Fire Alarm System
• Add a SIGA–REL for Releasing Device Service
Normal operating mode description
The panel operates in normal mode in the
absence of any alarm, supervisory, trouble, and
monitor events. In normal mode, the control panel
monitors the system for any events.
Off-normal operating mode description
The panel operates in off-normal mode any time
there is an event introduced into the system.
When this happens, the CPU:
• Changes the contact positions on the
appropriate common relays
• Activates all common alarm outputs (alarm
events only)
• Turns on the panel buzzer
• Executes the appropriate programmed output
response for the input that signaled the event
• Sends a record of the event to the appropriate
display queue and out the serial port
If there is no operator in attendance, the panel
displays the content of the highest priority display
queue containing a record.
If there is an operator in attendance, the panel
displays the content of the current display queue
regardless of any new events introduced into the
system.
Failsafe operating mode description
The panel operates in failsafe mode when the
CPU loses the ability to communicate with the PS6
and JP1 on the PS6 is in the ON position. When
this happens, the power supply:
• Closes the common trouble relay contacts
• Instructs the dialer to send the default trouble
message
• Monitors the system for any alarm events
If an alarm event occurs, the power supply:
• Changes the contact positions on the common
alarm relay
• Turns on all conventional common alarm
outputs. Signature common alarm outputs are
not affected.
• Instructs the dialer to send the default alarm
message
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