Specifications

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chime - a single-stroke or vibrating type audible notification appliance, which has a xylophone-type
striking, bar, and/or tone.
Class A Circuit (Zone) - NFPA Style D - an arrangement of a supervised initiating or signaling line or
indicating circuit that allows the operation of the circuit despite the occurrence of a single open or
ground condition. A requirement of fire protection systems that requires alarm operation even when a
single break or a single ground faults exists on the circuit.
Class B Circuit (Zone) - NFPA Style A - an arrangement of a supervised initiation or signaling line or
indicating circuit that doesn't allow automatic circuit conditioning to operate during a single open or a
single ground condition.
client - a process (program or routine) or entity (person, LAN) that employs the services of servers.
client/server - the interaction of software processes that function in a cooperative manner. Clients
make requests of servers.
closed circuit system - a switch or other detector used in closed circuit alarm systems that is closed
prior to alarm and opens on alarm.
closing check - this programming option enables the panel to verify that all areas in a partition that
has been armed after primary/secondary or permanent/temporary schedules have expired. If the
closing check finds any areas disarmed past the scheduled time, the keypad selected to display system
trouble status emits a steady beep and displays CLOSING TIME! If you also select area schedules, the
appropriate area name is displayed followed by - LATE. The keypad's steady beep is silenced by
pressing any top row select key. If the system is not armed or a temporary schedule not extended
within ten minutes, a no closing report is sent to the central station receiver. If the area has been
disarmed outside of any schedule, the closing check sequence occurs one hour after the area was
disarmed.
closing code - this programming option provides for a user code to be required for system arming.
closing wait - a programming option that provides for the panel to display a message on the keypad
and delay arming the system until the closing report has been acknowledged by the central station
receiver.
code change reports - a programming option that allows code additions, changes, and deletions to be
sent to a receiver.
coded - an audible or visible signal conveying several discrete bits or units of information.
Notification signal examples are numbered strokes of an impact-type appliance and numbered flashes
of a visible appliance.
collision - the condition that results when two network devices transmit at nearly the same time. The
transmissions collide, making the data unusable.
command key - the command key is used to step ahead through options in the panel's programmer or
user menu. Pressing the command key allows you to go forward and through each step of a menu
section. As you go through the options, the keypad displays any current selections already stored in
the panel's memory. The command key is also used to enter information into the panel's memory,
such as phone numbers or zone names, by pressing the key after entering the information and it is
being displayed correctly on the keypad.
Command Processor™ - the trademarked name for DMP control/communicator alarm panels.
common area - a unique DMP programming option that allows specification of one or more areas
within a partition to arm automatically when all other areas are armed. Alternately, common areas
disarm when any area in the same partition is disarmed. Common areas are ideal for lobbies, storage
rooms, or other areas shared by multiple users.