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Problem
7835C not being received at the central
station.
Message transmit successful;
yellow LED extinguishes, green LED
flashes 6 times.
7835C not being received at the Central
station. Message transmit not successful.
Yellow LED is lit solid, red LED flashes 6
times.
During installation, with cover removed,
using battery power and wall transformer
not plugged in, 7835C not being received
at the central station. Message transmit
not successful. Yellow LED is lit solid, red
LED flashes 6 times.
Radio fault, solid red LED on the Radio
Status display.
Low Battery message sent with cover
installed and wall transformer installed,
during normal operation .
Tripping a zone or valid ECP message does
not generate a message pending display;
solid yellow LED
Radio will not initialize.
The 5 RSSI LEDs blink in unison during
initial power-up.
Radio will not register.
No ECP communication between radio and
panel.
Probable Cause
Programming (subscriber number, central
station ID number, or city number.)
Antenna location or installation.
Battery is low.
Antenna location or installation.
AC voltage supply
Environment.
No connection ground.
Incorrect trigger input.
Incorrect jumper settings. P2 & P3
Data stored in EEPROM is corrupt.
Error in programmed features.
7720P programming tool has been left
plugged in.
– 32 –
Solution
Verify and correct programming entry
with the 7720P. Refer to the Programming
section.
Remove 7835C cover, check RSSI level
with a 7720P or the bar graph. Select a
better
mounting
location.
"Selecting a Suitable Installation Site".
Ensure the antenna connector is not
damaged or obstructed.
antenna is screwed down securely.
Replace battery with a fully charged
battery or plug in the wall transformer.
Remove 7835C cover, check RSSI level
with a 7720P or the bar graph. Select a
better
mounting
location.
"Selecting a Suitable Installation Site"
section. Ensure the antenna connector is
not damaged or obstructed.
antenna is screwed down securely.
AC power loss, excessive AC wire run, or
incorrect transformer.
If temperature exceeds -30°C to 60°C, this
will diminish battery capacity and or life.
Replace battery if required.
Connect (–) trigger output (TB Pin 4) to
the panel ground.
Verify type of input. Check P2 & P3
configuration.
Application of +4.5 to 12 volts (Non-
Inverted).
Check programmed trigger
levels.
Absence of +4.5 to 12 volts (Inverted).
Check wiring.
See Setting the Jumper Options.
Connect the 7720P and enter
programming mode. Skip all programming
questions and restore factory defaults as
described in Programming section.
Verify programmed options. Change as
required.
Remove
7720P.
This
disables
communications between the radio and the
panel.
Refer
to
Ensure the
Refer
to
Ensure the
ECP
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