Solidyne 562dsp, User Manual

Page: 6 / 44

Page 6 FM broadcast digital processor - SOLIDYNE 562 dsp EVOLUTION
1.2 Brief diagram for gene ral connect ions
1.
If your computer does not have serial
port; you can use a
RS232 to USB
adapter to connect the 562dsp on a USB
port.
In units with option RDS, you need to
connect a computer to the processor for
RDS programming. This connection can
be not permanent (in case that a fixed
text is transmitted; it is stored into RDS
memory).
2.
When the processor connects to the
console using the digital inputs, it’s
convenient to make the analogical
connection too. In case of fault in the
digital signal, 562dsp changes to the
analogical inputs automatically.
3.
In this example a RF connection was
used to transport the MPX signal from
the processor to the transmitter, which
assumes installed in a build far from the
studies.
In other configurations, the processor
locates in the transmitting plant and a
digital link is used to send the audio
(multiple sends can be used for backup).
In this case, the remote control of
562dsp can be implemented through a
data channel of the link that allows
sending RS-232 data.
1.3 Understanding the main screen
Next you will see an overview on the 562dsp main
screens. Later each processing stages and its
settings screens are fully analyzed.
When the unit starts up; the boot screen appears
on both screens showing the current version of the
firmware. Once started, the unit presents the main
screen at the left, and the main menu at the right.
Nextt, the main screen is described briefly as
introduction to the 562dsp graphical environment.
The progressive bars show the action of several
processor stages. The name of the current preset
and state of inputs and outputs also appears on
this screen. From left to right you find:
The
input VU meters
(L & R). Below the vu-
meters an
overload
(OVL) warning can appear, if
the input level reach 8 dB before the “digital
clipping” level (@ +18dBm). This warning turns off
last 5 seconds when the “clipping” condition
disappears.
AGC
bar shows the action of the Automatic
Gain Control, which fits the input gain so that the
signal arrives at the processing stages with
constant level. If the signal from the console