Table of Contents
Advertisement
TESTING THE7720PLUS
Radio Transmission Test
The 7720PLUS 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, the test message will cause the master station network to send a "Field
Triggered Diagnostic 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 three ways. Please note that methods 2 and 3 are available in Zone mode
ONLY. Check control panel Installation Instructions if LRR Test Mode feature is supported.
1) The TEST INPUT of the 7720PLUS can be triggeredby shorting the two pins of the test connector
together using a screwdriver, dime, etc., This will initiate a 90 second cycle (total of 60 messages) of
test message transmissions. Note that once this cycle has been initiated by a voltage trigger, it can be
turned off by using the T command described in (2). Otherwise, the messages will not stop until the
end of the cycle.
2) A 7720P Programming Tool can be used, if the radio is operating in zone mode. To begin the cycle
of test message transmissions, press SHIFT-8 (T command). This is a toggle function. To end the
transmissions before the end of the cycle, simply enter the command again. See the NOTE on page
25.
3) A computer terminal can be used, if connected to the programming connector of the 7720PLUS. To
begin a cycle of test message transmissions, press "T."
transmissions before the end of the cycle, simply enter the command again.
System Test
Trigger an alarm by any convenient means and observe the LED indicators on the radio. The yellow
LED should light solidly, followed by the green LED flashing every 1-3 seconds at first, then slowing
during the 6 minute cycle. This indicates that an alarm message has been received at the radio
(yellow), and the transmitter has been activated (green). The red LED should not light.
If the radio is configured for zone mode and the zone is programmed for restore, restore the circuit.
The yellow LED should light solidly, and the green LED should flash again, indicating transmission of
the restore message. The central station receiver should display alarm/restore messages for each
triggered alarm/restore performed.
If at any time the red LED lights, a radio fault has been detected. This could be caused by a faulty
antenna connection, or might be caused by low internal battery voltage, or a failure in the radio's
power circuits (see LED FLASH PATTERNS on page 4).
If the radio is in Zone mode, the 7720PLUS can display diagnostic data (S command) related to the
status of these conditions. See Status Command section.
If the radio is in ECP mode, the status is displayed on the control panel's remote keypad in the lower
right-hand corner. This display is in the form of a four-digit numeric output (usually preceded by
"Long Rnge Fail"). Please see description of codes in ECP Status Codes section.
Replace the cover (if it was removed) and perform a control panel system test.
This is a toggle function.
– 29 –
To end the
Advertisement
Table of Contents
