Controlled Products Systems Group SPX-7400 - Manual (Page 9)

LED Diagnostic Indicator:
The LED Diagnostic indicator provides information on the operational status of the unit.
If the units are not communicating, viewing the diagnostic indicator LED’s may help to determine the
nature of the problem.
When the Suprex® units are operating correctly and have a valid communication channel between
the Remote and Central units, the Diagnostic indicators on each unit will flash green rapidly
(2-3 flashed per second).
DIAGNOSTIC LED NOT ILLUMINATED:
If the LED(s) are not illuminated on the unit(s) then the unit is not getting power or there is an electrical problem.
The Diagnostic LED’s will be illuminated Red/Green or flashing whenever power is applied.
CENTRAL UNIT FLASHING BETWEEN RED/GREEN:
With power applied and no communication path between the Remote and Central, the Central unit will flash the
diagnostic indicator alternately between Red and Green.
REMOTE UNIT ILLUMINATED RED:
The Remote unit will diagnostic LED will illuminate solid (not flashing) red if it is not receiving communication from
the Central.
REMOTE AND CENTRAL UNITS FLASHING BETWEEN RED/GREEN:
The Central is not Receiving communication from the Remote.
Cypress Suprex® SPX-7400 Series - Status Indicators