Installation manual

ENG/EFP Truck
In the preceding diagram of a typical ENG/EFP Truck installation, a 2-Channel Main Station powers the
intercom system. The Director operates the Main Station, and an Engineer operates the Remote Sta-
tion. A line of single-channel beltpacks is connected to Channel A and are used by camera operators
and floor managers. Communication between these people and the Director is on Channel A. If
4-channel (or more) stations were used in this application, the functional areas of communications
could be further split to allow more individual conversations to occur at once.
A System Interface such as the Clear-Com TW-12B can be used to interconnect with another intercom
system which may be on site, whether or not it is a Clear-Com system. It isolates the intercom audio
and compensates for level and impedance differences. It also isolates and translates call signals. A
Clear-Com Telephone Interface can be used to provide a studio feed over a dial-up telephone line.
The Telephone Interface should be optioned to insert program on Channel B, and interrupt the program
when a Call signal is present on Channel B. Because the program audio is fed into the intercom line
and not the Program Input jack, the Program Level controls on the Main Station have no effect.
Channel B is connected to a Talent Receiver for Talent or an Announcer. Program feed audio from the
studio feed can be heard by the Director and Engineer, as well as the Talent or Announcer. The Call
on Talk B and Momentary Talk B options switches on the Main and Remote Stations would be set to
the ON (down) position . This would cause the program audio heard by the Talent and Announcer to be
interrupted whenever the Director talks to them, but only while the Director is holding the Talk button.
Clear-Com System Installation Manual
16
Director Engineer
Camera Operator
Assistant Director /
Floor Manager
Talent /
Announcer
2-Channel Main Station
Beltpack
Beltpack
Talent
Receiver
Channel A
Channel A
Channel B
Channel B
Studio Program Feed
2-Channel Remote Station
3
3
= Male 3-Pin XLR
= Female 3-Pin XLR
Telephone Interface
Telephone
Central
Office Line
Channel A
3
Other
Intercom
Intercom Interface
3
3 3 3 33
33
3 3
3
3
3
33
Channel B