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LEDs signalling
: Hotel room management application notes
The four LEDs placed on the front of the cabinet are used to enlighten the corresponding four
icons in order to signal and advice transponder card reading feedbacks and some different
alarms or user calls coming from the room.
The first LED1 (red/green) is used only for transponder card or key reading feedbacks.
This functions are fixed and not configurable by planners or users.
The other 3 LEDs can be freely associated, through group addresses associations, to different
kind of alarms or signals coming from the room inside and received from other KNX input
components such as push buttons or sensors.
Next follow a typicall Hotel room management usage of such LEDs.
Application Example:LEDs signalling in Hotel Room Management
LED1 red/green = “access control”. The LED1 is normally OFF. When is ON can
assume the following display functions:
Fixed Green light for 3 sec: Entrance Allowed (door open command is
sent to the bus and/or the relay1 and 2 are activated)
Red blinking for 3 sec.: Reading Error (unreadable card or wrong card
reading). No entrance is allowed.
Fixed Red light for 3 sec.: Entrance Not Allowed (“Build Number” or
“Password” or “Grant Date” (if control enabled with parameter) or “Grant
Days” (if control enabled with parameter) not valid;
Blinking Green Light for 3 sec.: Entrance Not Allowed (access time does
not match with timing hours ranges associated to the password);
Red and Green LEDs blinking: after an ETS configuration donwload or
after power supply.
The signalling functions, with a fixed or blinking light, associated to the next LEDs (LED2,
LED3, LED4) can be configured freely by ETS using the corresponding group objects. In case
of Hotel room management, for instance, they can be used associated to push buttons as
follows:
LED2 red = “SOS alarm” or any other alarm;
LED3 amber = “Room busy”, “Do not Disturb” or any other alarm;
LED4 green = “Room Service Call” or any other alarm;
Any information inside this manual can be changed without advice.
This handbook can be download freely from the website:
www.eelectron.com
Exclusion of liability:
Despite checking that the contents of this document match the hardware and
software, deviations cannot be completely excluded. We therefore cannot
accept any liability for this. Any necessary corrections will be incorporated
into new versions of the manual.
