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TESTING
THE
7720
RADIO
TRANSMISSION
TEST
The 7720 is capable of sending a test
message, which
can be received
by the
central
station to confirm the radio's
communication link to the central station.
For AlarmNet users, tie test message Ml
cause the master station network to send
a 'Fmkf Triggerad D~gnostic Message" to
the central
station.
This
message
provides network information as well as
signal
strength
and
frequency
characteristics
of
the
transmitted
messages. Refer to the AlarmNet User's
Guide for detailed information concerning
these messages. The test message can
be
transmitted in any of the ways.
1) The TEST
INPUT (terminal 9) of the 7720
can be triggered with a voltage trigger,
which will initiate a 6-6 minute cycle (total
of 60 messages,
repeated about once
every
3 seconds)
of
test message
transmissions. Note that once tMs cycle
has been initiated by a voltage trigger, it
can be tum~ off by using the T command
described in (2). Othewtise, the messages
w"linot
stopuntilthe
end of the cycle.
2) A 7720P Programming Tool can be
US6d,
if connected to the programming connector
of the 772o.
To
begin a cycle of test
message transmissions, press SHIFT-6 (T
command). This is a toggle function. To end
the transmissions before the end of the
cycle, simply enter the command again.
3) A computer terminal can be used, if
connected to the programming connector
of the 7720. To begin a cycle of test
message transmissions, press SHIFT-T (T
command), This is a toggle function. To
end the transmissions before the end of
the cycle, simply repeat the command.
SYSTEM
TEST
Trigger an alarm by any convenient means
and observe the LED indicators on the
radio. l%e yellow LED should light solidly,
fallowed by the green LED flashing every
1-3 seconds at first, then slowing during
the 6 minute cycle. This indicates that a'I
alarm message has been received at the
radio (yellow), and the transmitter has
been activated
(green).
The red LED
shdd
not iight-
If the zone
is
programmed for restore,
restore the circuit. The yellow LED should
lightsolidlyand the green LED should flash
again,
indicating
transmission
of the
restore message.
The central
station
receiver
should display alarm/restore
messages for each triggered alarrnhstore
performed.
If at any time the red LED lights, a radio
fault has been detected. This could be
caus~ by a faulty antenna connection, or
might ba caused by low internal battery
voltage, or a failure in the radio's power
circuits (see LED FIASH PAllERNS
on
page 3). The 7720P can display diagnostic
data ("= command) related to the status of
these conditions. See Status Command
section.
Replace the cover (if it was removed) and
P6rform a control panel system test.
STATUS 'S" COMMAND
The status of the 7720 can be viewed on
either a 7720P Programing Tool or an
appropriate terminal when either device is
connected to the serial port of the 7720.
The status display indudes zone input
status,
test
terminal
status,
tamper
status, batte~ concfition, charging vottage
status and radio fault status. The 2-line
display takes the following form:
1234 TeTm BaDcFlt
65555
s++0
1234
The numbers
1-4
represent the four
zone inputs, and follow Ademco
Hiah Soeed Format
COd6S:
N&
Event
NewOpening '
Restore
NewClosing
Normal
PreviwslyRepottedEvent
Teko NewEvent
TelcoPreviously Reported
TekmRestore
Te
test terminal input codes:
1
Currently triggered but test
message cycle is pendng due
to transmission
of higher
priority message (alarm).
5
Normal (not triggered).
6
Currently triggered& message
cycle either in progress or
completed.
-11-
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