
9
Cable
Four Channel
Intercom Master
Station
EF-204
E-200 Series
Power requirements:
90-264 VAC/ 50-60 Hz/
60 VA.
System Power:
24 VDC/2.5 A /pin2.
System Impedance:
nominal 220 ohm / pin 3/
max length 2,000 meters.
Connections:
Intercom XLR-3M
ABCD/XLR-5M+XLR-5F
AB and CD/2xRJ45 ABCD,
USB.
Remote functions:
Mic kill, Buzzer kill,
Relay, PA.
Dimensions and Weight:
1U x 19"x250 mm
4 Kg net.
Specifications
Four Channel Master Station
The EF-204 Master station unit includes the power supply for all the intercom components in the system. In the case of short-
circuit on any point of the line, the unit shuts down with an instantaneous recovery after the fix is cleared. System can drive up
to 60 single channel beltpacks or 20 desk stations.
Separated four channels are provided with independent Talk, Listen, and Call signalling buttons. Linking between channels is
made easy from the front panel buttons.
All the components in the system incorporates digital control to implement different task as Mic Kill, remote buzzer switch-off,
latch or PTT mic switching, etc.
The station incorporates program input (mic/line) with level attenuator assignable to any of the four channels and mic output
to address PA messages from the headset operator. Relay contacts are provided that follows the PA button action, helping the
installer to automate multiple tasks as Tally, speaker switching and cue lights among others.
The station can be used as a Main station driving all the system or as a desk remote console station in complex multipoint
multichannel installations.
One block of four key buttons allows the unit to be preset for instant recall of programmed setups including Talk, Listen and Call
key functions to any channel combination in an intuitive manner.
Front panel includes gooseneck panel microphone, headset connection and a high efficiency speaker.
Key Features
• System capacity: up to 60 EM-201 single channel beltpacks.
• Mic Kill and Buzzer kill remote functions.
• Call and Talk illuminated push switches per channel. Adjustable
Listening control.
• LINK between channels.
• Expansion connectors for additional EF-204 cascading.
• Relay contacts for remote control of Walkies, Tally lights, etc.
• Four programmable key buttons.
• Panel access for advanced setups: Mic gains, phantom power, PRG
interrupt, relay action, etc.
• Easy cabling to nearby slave stations by using cat-5 wiring.
APPLICATION EXAMPLE BROADCAST / MUSICALS
LIGHT CONTROL
SOUND CONTROL
DIRECTOR
PRODUCTION MNG
VIDEO CONTROL
STAGE MANAGER
2
2
4
4
4
2
LIGHT
SPOTS
SOUND
OPERATORS
GRAPHICS
STAGE
CAM
OPERATORS
DRESSING ROOM
TELEPHONE LINE
PSTN
MTX-4x16
PUBLIC ADDRESS
PROGRAM INPUT
1
1
2
2
1
2
1
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