Doc. no. A100K11499 Page 5
2.2 Ex Product Interface
The interface of the Ex Products consist of the elements in the following chapters.
2.2.1 Status LEDs
Present on all Ex Products.
Green Power LED
The Power LED is lit to indicate that the access panel is powered up.
The Power LED flashes to indicate that the device has no connection to the central equipment.
Yellow Fault LED
The Fault LED is lit to indicate that there are faults in the system.
The Fault LED flashes to indicate that the device is connected to (link OK), but not registered with
the central equipment.
Red Call LED
The Call LED is lit when an intercom is in a conversation, or the microphone on an access panel is
active.
2.2.2 Function Buttons
Present on all Ex Products.
These are fully programmable buttons which appear in different forms on different units.
Right-aligned Function Buttons have two programmable LEDs (green and red) to indicate status
information related to the function.
For right-aligned Function Buttons, button protection covers can be attached to avoid a button
being inadvertently pressed.
2.2.3 Numeric Keypad
Present on TFIX-1, TFIX-3 and TFIX-4.
These have a predetermined function.
Dialing buttons 0 - 9, present on TFIX-1 and TFIX-4, are used for calling specific numbers or
triggering functions.
M-button, present on TFIX-1, TFIX-3 and TFIX-4, is used for answering calls, Push-To-Talk and
changing from external to internal audio devices.
C-button, present on TFIX-1, TFIX-3 and TFIX-4, is used to cancel a current action or state.
