Installation; Inputs - Ecler eSAM402 Notice D'utilisation

3. INSTALLATION

The eSAM402 mixer has been specially designed to be installed in a standard 19" rack, taking up
1U. It has been designed to be operated by non-technical users. This is the reason why its tone controls
are adjustable only with a screwdriver. On the opposite, input and output level controls use classic and
easily accessible rotary knobs.
Due to its low power consumption and heat sink, the eSAM402 doesn't need any fan cooling.
However, avoid installing it in dusty environments and/or in a location with extreme temperature and
moisture.
The mixer should be kept apart from noise and interference sources (dimmers, motors, etc...) as
well as from power cables.
The eSAM402 operates from 90V to 264V CA, 47 to 63Hz. Its oversized power supply is
compatible with any mains voltage worldwide.
In order to protect the mixer from eventual overloads, the eSAM402 is protected by a timered
power fuse of 0.5A. If it gets blown up, you must replace it with an identical one. If it gets blown up, you
must replace it with an identical one. NEVER REPLACE THE FUSE WITH ANOTHER ONE WITH A
HIGHER VALUE.
CAUTION: Fuse substitutions have to be performed by a qualified technician.

4. INPUTS

The eSAM402 supports two types of audio signals for each of its first three inputs (mono MIC or
stereo LINE), selectable by a MIC/LINE switch on the rear panel:

Microphone signal: 3 mixing channels offer a Euroblock connector for a nominal input level from
–50dBV (3.16mV) to –20dBV (0.1mV), with a GAIN control on the rear panel to adjust the gain.
Here is the wiring diagram for microphones:
Microphones must be low impedance (200 to 600) and monophonic.
The eSAM402 supplies phantom power for condenser microphones; it is enabled by an
internal jumper (see diagram). By default, phantom power is disabled (factory setting).
The Talkover (priority) function operates when a signal is detected at the inputs 1 to 3 this
function is assigned to; it attenuates the other inputs of the unit that don't have priority. Turn it on/off for
each input channel with the "TK" switch on the front panel.
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