Table of Contents
Advertisement
SYSTEM FEATURES
WIRELESS REPORTING
Alarm and status messages are transmitted to the security
network by radio,
providing faster and more secure reporting than that typically achieved by
conventional telephone line reporthg.
COMPATIBILITY
The 7920SE is compatible with installations using standard alarm control
panels with alarm trigger outputs.
The 7920SE may be used with digital
communicators on the same system, each serving as a backup to the other.
(Use an Ademco No. 659EN Line Fault Monitor connected to a 7920SE telco
fault
input, to
report
a
line
cut
as
a
system
backup
to
the
control/communicator). The 7920SE can also serve as a stand-alone alarm
reporting device in applications where remote sensors are
continuously
armed.
PROGRAMMABLE FEATURES
The 7920SE utilizes EEPROM (Electrically Erasable PROM) technology,
which allows the 7920SE to be programmed with a computer terminal. The
programming options include channel assignments for Telco fault input,
inverted trigger inputs, delayed reporting channels (16 second delay, if
selected), open/close/restore reporting channels, and auxiliary control output
programming.
CHANNEL TRIGGER INPUTS
The 7920SE provides monitoring of up to 6 traditional channel triggers, with
any channel capable of being programmed for triggering on inverted inputs.
Channel inputs are activated by 4.5-12VDC
voltage inputs, or by the
application or removal of dry contact closures.
CHASSIS TAMPER PROTECTION
For UL "AA" installations, chassis tamper switches (Ademco No. 945WH or
No, 945BR) must be added to trigger an alarm whenever the chassis cover is
removed, thus protecting against urrauthorized access to the 7920SE.
BUILT-IN LEDs
The 7920SE Interface Board has four LED indicators which indicate message
reception, message transmission, messages waiting to be transmitted, and
the execution of a control function.
The No.7920SE also provides output
terminals for connection to remote LEDs. The remote LED outputs can also
be programmed to serve as Central Station controlled outputs.
POWER SUPPLY
The 7920SE features a self-contained power supply, which can be provided
by an Ademco No. 1361 transformer plugged into a 120VAC, 60 Hz, 0,5 amp
continuous AC power source. A battery provides backup operating power in
the event of a primary power failure.
-3-
Advertisement
Table of Contents
