5. - INSTALLATION
5.1.- Previous considerations
As already mentioned in the point 4.2, the
power supply unit can feed 8 processors,
the amplifier and one preamplifier.
Mounting the system consists of fixing the
modules to a metallic rail bolted onto the
wall. The way of connecting all the modules
is described in the section 3 figure.
5.2.- How to use the external program-
mer
The parameters that can be measured and
modified with the programmer are:
Measured parameters
- Input level
Parameters that can be modified
- Input channel and output channel
- Powering for preamplifier (12V)
- Channel processor´s address
- Gain slope
- Input and output frequency offset
If any of the equipment's parameters are
modified, it is necessary to save the new
configuration. To do this, the user must
press the
button for approximately 3
seconds. If the data is correctly saved, the
central segments of the programmer's digits
will flash:
If the configuration data is modified but not
saved, the previous configuration is retrie-
ved after about 30 seconds, in other words,
any changes made are cancelled.
The programmer must be used in the follo-
wing way:
Normal menu
1.-
Insert the programmer in the front con-
nector of the programming module
(“PRGM”). First, the
version of the softwa-
re
in use, will appear. For example 1.00:
2.-
The following menu (pressing the
but-
ton) is the
Output Channel
Menu. Unlike
what happens with the input channel, in this
case the “C” LED lights up.
The range of permitted values is the same
for the input channel menu.
A change in the channel and the consequent
saving of new data is carried out as explai-
ned above.
3.-
By pressing the
button again, the
adjustment of the
output level
of the proces-
sor will appear. This is an index between 00
and 99. The index 99 corresponds to the
maximum output level of the processor, which
is in the order of 85 dBµV, while the index 00
represents an attenuation of approximately 20
dB as regards the maximum value.
The output level can be modified with the
& buttons.
29
User manual
DTT Channel Processor
ENGLISH
