10007125.DOC
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INSTALLATION
Rack mounting
The EM-760 is built for 19" racks/483mm. The minimum mounting depth is housing depth plus 100 mm for
plugs and cables. The height is 44 mm only. You can fix the device with four screws M6 in the rack.
When mounting the device into a rack, please make sure that there is a proper air circulation.
Please make sure that there is enough space around the device so that the heated air can be passed on.
The rack should be provided with a cooling fan.
Inputs
A good cable run improves the sound quality remarkably. Input cables should be short and direct, since high
frequencies will be mostly be absorbed if the cables are unnecessarily long. Besides that a longer cable may
lead to humming and noise trouble. If long cable runs are unavoidable, you should use balanced cables.
The occupation of the XLR-sockets is as follows:
PIN 1 = Shield
PIN 2 =
PIN 3 = Signal -
Connection with the mains
Connect the device to the mains with the enclosed power supply cable.
The occupation of the connection-cables is as follows:
Cable
Pin
International
Brown
Live
L
Blue
Neutral
N
Yellow/Green
Earth
The earth has to be connected!
If the device will be directly connected with the local power supply network, a disconnection switch with a
minimum opening of 3 mm at every pole has to be included in the permanent electrical installation.
OPERATION
Make sure to power-up before your power amplifier is turned in order to avoid loud transients which could
damage your speakers or annoy your audience.
Switch the device on via the power switch.
CLEANING AND MAINTENANCE
The operator has to make sure that safety-relating and machine-technical installations are inspected by an
expert after every four years in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are inspected by a
skilled person once a year.
The following points have to be considered during the inspection:
1) All screws used for installing the devices or parts of the device have to be tighly connected and must not
be corroded.
2) There must not be any deformations on housings, fixations and installation spots (ceiling, suspension,
trussing).
3) The electric power supply cables must not show any damages, material fatigue (e.g. porous cables) or
sediments. Further instructions depending on the installation spot and usage have to be adhered by a
skilled installer and any safety problems have to be removed.
