Clear-Com HX System Frames - Manual (Page 58)

When the external logic device is activated, it sends a control signal into the matrix to perform one of
several preset functions, such as turning an intercom panel’s microphone on or off, muting a
microphone’s output, or turning a panel’s speaker off. The function to perform and the panel upon
which it is performed is chosen from the EHX programming software.
Tip: For more information about GPIs, see
4.5.5 Connections using General-Purpose Inputs (GPIs)
Once a GPI has been connected, you can check the on / off status of the GPI directly from the front
panel of the Eclipse HX-PiCo. To check whether or not a general-purpose input is on:
1. From the Main menu, select Status. The Status menu is displayed.
2. From the Status menu, select GPI. The GPI Status menu is displayed.
Figure 27: GPI Status menu display
If a GPI is on an X is displayed in the checkbox next to that GPI number on the menu. An
unchecked box indicates that the GPI is off.
Note:
These fields cannot be edited. They are for information only.
3. To exit, scroll to and select Exit.
5.12 Checking the status of General Purpose Outputs
(GPOs)
A General Purpose Output (GPO) or relay is a switch that is controlled remotely. The relay is
programmed in the EHX software to close a contact whenever an intercom panel’s key is pressed.
When the contact is closed, it completes an electronic circuit’s signal path so that a remote device
(such as an applause light) is powered.
A GPO can be programmed to mute a speaker, to turn on an applause light, to turn on a door lock, or
to perform a variety of other functions. For example, to get the attention of a panel operator working in
a high-noise environment such as a control booth, it can be programmed as a relay to switch on a
light at the panel each time an incoming call is received to ensure that the call is not missed. The
general-purpose outputs are connected to the male 25-pin D-type socket labeled GP OUT on the
back of the Eclipse HX-PiCo.
After a GPO has been connected it is possible to check whether or not a GPO is on directly from the
front panel of the Eclipse HX-PiCo. A GPO can be toggled on or off directly from the Eclipse HX-PiCo
front panel as well.
Tip: For more information about GPOs, see
4.5.4 Connections using General-Purpose Outputs.
58 Eclipse HX-PiCo User Guide