Specifications

© 2015 Digital Monitoring Products
smoke detector - a device that detects the visible or invisible particles of combustion.
split reporting - a method of sending different signals to two separate receivers. An example would
be to send alarms to receiver one and openings/closings to receiver two.
status list - displays any alarm or trouble condition on a zone, and any trouble condition on an internal
system monitor. If more than one alarm or trouble condition occurs at the same time, the keypad
sequences this information on its display.
strike time - the length of time that a keypad relay or an access control device relay will be activated.
supervised alarm service - a central station monitored alarm system that reports opening, closing,
and other activities. Supervision assures that the system is turned on and off and that only
authorized personnel can gain access to protected premises.
supervised circuit - a circuit in which a break or ground in the wiring which prevents the transmission
of an alarm signal, will actuate a trouble signal.
supervision - the ability to detect a fault condition in the installation wiring that would prevent normal
operation of the alarm system.
supervisory signal - a signal indicating the need for action in connection with the supervision of
guard tours, automatic sprinkler, or other extinguishing systems or equipment, or the maintenance
features of other protective systems.
supervisory zone - a 24 hour zone type typically used for supervising fire alarm valve tamper switches
on OS&Ys, butterfly valves, and PIVs.
swinger - a zone that intermittently trips while armed resulting in erroneous alarm activation.
Swingers can be due to light or heat fluctuations near motion detectors or loose or partially broken
wires on a zone.
swinger bypass - a programmable function that allows the panel to bypass a zone that repeatedly
trips. Swingers (zones that trip often) are a serious false alarm problem but can be controlled by using
the swinger bypass feature. A swinger bypassed zone may be restored to the system after it has
remained stable for one hour.
swinger bypass trips - the number of times a zone can go into an alarm or trouble condition within
one hour before being automatically bypassed.
Synchronous Data Link Control (SDLC) - a data link layer protocol used by IBM SNA networks and DMP
Command Processor panels.
system monitor - the function that allows the panel to monitor its AC power, battery power, enclosure
tamper, phone line one, and phone line two. Troubles with any of these elements can be reported to a
central station or displayed on the system's keypads.
Systems Network Architecture (SNA) - a suite of communications protocols developed by IBM. It is
similar to the AppleTalk protocol suite for the Macintosh.
T1 - AT&T term for a digital carrier facility used to transmit a DS-1 formatted digital signal at 1.544
Mbps.
Telco - an alternate term used for a telephone company.
temporary schedules - a programmable schedule that allows the user to give restricted, short term
access to another person. Temporary schedules can be used to create a window outside of normal