Clear-Com i-Series Panels - Manual (Page 64)

Clear-Com Communication Systems
I-Series Instruction Manual
4 - 8
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 relay outputs connector
connects to three single-pole
double-throw (SPDT) relays.
Contact ratings for the relays
are 30 VDC at 1 A.