Telecast Fiber Systems – CopperHead 3400 Transceiver System User Guide –
Preliminary Version
Page 69
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The following diagram illustrates how the Audio Interface Box should look with both Intercom
Channels Active and Talk Back enabled locally for both Intercom Channels.
Figure 35- Local Activation of Both Intercom Channels
Figure 36 - Setting Intercom Side Tone
To set Intercom Side Tone Level, first establish Intercom communication and have the Intercom traffic
continue while you adjust Side Tone. Activate Talk Back on an Intercom Channel and begin talking. With
a “Tweaker” type screwdriver adjust the Side Tone Level until you are comfortable with the level of your
own voice. This does not affect how others on the Intercom circuit here you, only the local level of your
voice.
Figure 37 - Remote Activation of Intercom Talk Back
If your system requires Remote activation of Talk Back you will need to configure a remote intercom
switch or wire a remote intercom signal path to your camera (if your camera provides remote intercom
functionality). Please see Appendix 1 – Pages 81 and 84 for information regarding the wiring of GPI type
triggers.
To use the Remote Talk Back function, switch the Intercom Local/Remote switch to REM. The Talk LED
will not be dependent on remote activation. It will illuminate when the Remote Talk Switch is active and
go out when the Talk Switch is inactive.
The selection of the active Talk Back Intercom Channel is identical to that when the Intercom
Local/Remote Switch is in LOCAL.
Summary of Contents for CopperHead 3400
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