Clear-Com i-Series Panels - Manual (Page 56)

Activate Listen Labels
The Activate Listen Labels function allows you to set up an external logic device, such as a
panel-mounted switch, a foot switch, or the logic output of some other device, to activate
all latched keys tha are listen keys.
To use a logic device to activate the listen keys:
1) Select the Activate Listen Labels option in the Eclipse Configuration System.
2) Connect a logic device (such as a foot switch, a panel-mounted switch, or the
logic output of another device) to the i-Series panel’s GPI connector.
3) Switch on the logic device to activate the panel listen keys.
PTT: Activate 2-Way Radio Talk Keys
The PTT: Activate 2-Way Radio Talk Keys function allows you to set up an external logic
device, such as a panel-mounted switch, a foot switch, or the logic output of some other
device, to activate all latched keys at your panel that are assigned to a 2-Way Radio
Interface. The PTT: Activate 2-Way Radio Talk Keys function operates similarly to the
PTT: Activate All Talk Keys function, except that it only affects latched keys assigned to a
2-Way Radio Interface. All other latched keys at your panel operate normally and are not
activated by the logic device.
When the logic device is not activated, you will not be able to talk from any latched key
assigned to a 2-way radio at your panel.
For example, some headsets are equipped with a push-to-talk switch on their headset
cords. In this case, when the intercom operator wants to talk to a 2-way radio from a
latched key, he will only be able to do so if he first pushes the push-to-talk switch on the
headset cord.
This function is valuable in applications that use 2-way radios because typically these
systems transmit on only one frequency, and if more than one person transmits on the
same frequency at any one time, the radio waves are interfered with so that no radio
operator in the system can hear.
Using the PTT: Activate 2-Way Radio Talk Keys function allows an operator to determine
precisely when he transmits audio on a 2-way radio interface.
To use a logic device to activate a key assigned to a 2-way radio:
1) Select the “PTT: Activate 2-Way Radio Talk Keys” option in the Eclipse
Configuration System.
2) Connect a logic device (such as a foot switch, panel-mounted switch, a push-to-
talk headset, and so on) to the i-Series panel’s GPI connector.
3) Switch on the logic device to activate all latched keys assigned to 2-way radios at
your panel.
The logic device will activate keys latched both before and after you enabled this function
in the Eclipse Configuration System.
Note: The latched keys assigned to two-way radio keys at your panel may appear to be active,
since their talk lights will illuminate, but they are only active when you switch on the
connected logic device. Any controls (relays, etc.) assigned to the 2-way radio keys along
with the audio functions now also are only active when signalled by the remote device.
56 I-Series Panels User Guide