User manual

DESCRIPTION Page 38 | 41
Operating guide for Alarm Receiver DECRYPTA
3
MCDI Security Products Inc.. Internet: mcdi.com
7055 Jean-Bourdon Avenue, Montreal, QC, Canada H4K 1G7 Telephone: [phone] Fax: [phone]
GUI Graphical User Interface. Pronounced "gooey". Graphical rendering of the programming code
used by the PC.
Half Duplex Each end of a communication circuit can transmit and receive data, but not simultaneously. Most
alarm transmission are of this type.
Handshake Frequency emited by the alarm panel in order to match the format of the alarm panel.
DECRYPTA
3
emits several handshake tones in order to mate with the panel.
Handshake sequence In DECRYPTA
3
, the hability to specify an order of appearance in order to speed the
matching process between the panel and the alarm receiver.
Hearbeat Single caracter or group of caracters sent from one device to the other at regular intervals.
HUB USB hub. Device used to link several USB client units to a USB port.
ISA Industry Standard Architecture. Slower 8 or 16-bit BUS (data pathway). TLR and TLR+ receiver
card are of this type. Fading out of the market.
Kiss off Tonality or signal sent by alarm panel or receiver to inform corresponding device of the end of
session. Some formats do not require handshake but most do.
LAN Local-Area Network. Connection of workstations, PCs or other LANs to enable data access and
device sharing.
Late to close LTC. Event created by arming a system after specified time.
Late to open LTO. Event created by disarming a system after specified time.
Listen-in Ability to hold the phone line and listen and sometimes talk on the phone line. This feature is
format related.
mA Milliampere Unit of current that is 1/1000 of an Ampere. Measure of current needed to power
DECRYPTA
3
Modem The name combines "modulate" and "demodulate". Refers to its ability to transmit and receive
data superimposed on a carrier frequency. In alarm industry usage, a modem is a type of
communication. FSK formats are modem types.
Modem3a
2
Alarm format owned by Radionics company. Built-in DECRYPTA
3
and Exprecium
2
. An
agreement between the user and Radionics is required to activate.
mV Millivolt. Unit of electrical potential. 1/1000 of a volt.