Sennheiser EM 3731-II Stereo Receiver User Manual


 
Putting the receiver into operation
14
The rack mount “ears” are already fitted to the receiver on delivery. To
mount the receiver into a 19" rack:
̈ Slide the receiver into the 19" rack.
̈ Secure the rack mount “ears” 1 to the rack using four screws (not
included in the delivery).
Connecting the antennas
The two antenna inputs O and R allow you to connect either:
the two supplied antennas to the rear of the receiver (see next section)
or
the two supplied antennas to the front of the receiver (see “Mounting
the antennas to the front of the rack” on page 14) or
two remote antennas to the rear of the receiver (see “Connecting and
positioning remote antennas” on page 15).
In addition, the receiver has two daisy chain outputs P and Q for
supplying the antenna signals to further receivers (see “Daisy chaining
receivers” on page 16).
Connecting the antennas to the rear of the receiver
The supplied antennas can be mounted quickly and easily and are suitable
for all applications where – good reception conditions provided – a wire-
less transmission system is to be used without a large amount of installa-
tion work.
̈ Connect the antennas to the BNC sockets O and R at the rear of the
receiver.
̈ Align the antennas upwards in a V-shape.
Mounting the antennas to the front of the rack
To mount the antenna connections to the front of the rack when rack
mounting the receiver, you require the GA 3030 AM antenna front mount
kit (optional accessory). The GA 3030 AM consists of:
2 BNC extension cables (screw-in BNC socket W to BNC connector [),
2 antenna holders Z,
•4 screws,
•2 washersY,
•2 nutsX.
CAUTION! Danger of short-circuit due to uninsulated antennas!
If you switch the booster supply voltage on, a 12 V DC voltage
is applied to the antennas – even when you switch the
receiver off! If uninsulated antennas come into contact with
objects which conduct electricity, this voltage can produce
sparking and audio interference.
̈ Use insulated antennas.
OR
̈ Always mount uninsulated antennas so that they cannot
come into contact with objects which conduct electricity.
N
OP
Q
R
S
Y
W
X