Specifications

© 2015 Digital Monitoring Products
business hours during which a maintenance or deliveryman can enter using a special code that
functions only during this window.
test frequency - a programming option that allows the selection of the how often the automatic recall
test is sent to the central station receiver.
test report - see automatic recall test.
test time - the time of day the panel sends the test report to the receiver.
thickwire - a type of Ethernet cabling, also known as 10Base-5, that uses a thick (about 3/8") coaxial
cable. Primarily used as a backbone to which thinwire or twisted pair hubs are connected.
transceiver - a single-ended electrical installation consisting of both transmitter and receiver. It
transmits a beam that is then reflected back to the receiver in the same unit.
transient - any increase or decrease in the excursion of voltage, current, power, heat, and so forth,
above or below a nominal value that is not normal to the source.
transmit delay - a feature of DMP Command Processor panels that delays the sending of burglary
alarm reports to the receiver for a selectable length of time up to 60 seconds.
transmitter - in a fire or security system, a device that sends alarm signals from a protected premises
to a proprietary headquarters, a central station, or a municipal headquarters.
trouble - an off normal condition on a zone during a supervised state. A normally closed zone that
alarms when opened, can initiate a trouble when shorted. A fire zone that alarms when shorted can
initiate a trouble when opened.
trouble signal - a signal that indicates trouble of any kind. This can be circuit break or ground
occurring in an alarm system's devices or wiring.
24-hour zone - a zone that is not turned on or off by arming or disarming a system.
Underwriters Laboratories, Inc. (UL) - an agency that tests and lists various consumer products for
safety and reliability. Most alarm system products are UL listed for use in various applications.
UL Certificate - a certificate issued by Underwriters Laboratories Inc. that serves as evidence that an
alarm system meets UL requirements for installation, operation and maintenance.
user - a person authorized to operate all or part of the security or fire system.
user code - a one to five digit number programmed into the panel and assigned to a user that allows
them to access its functions. User codes are typically assigned authority levels that restrict the user
to one or more of the system's functions or to certain areas for arming and disarming or door access.
user error - the number one cause of false alarms. A user who does not know how to perform a
function for which they have access, or who has not been trained properly in the operation of the
system, can and will cause false alarms. It is important that all new users receive instruction on
arming/disarming routines and alarm cancellation procedures to lessen the incidence of false alarms.
user menu - a keypad feature that provides a list of optional functions a user can access. These
functions include sensor reset, door access, outputs on/off, system status, and user codes. Individual
user menu items are displayed to persons according to the authority level of the user code they
entered to get into the menu.