Televes DTT Manual De Instrucciones página 30

User manual
To save the new value for the output level,
follow the explanation provided at the start
of the instructions. If the new value is not
saved, the equipment will automatically
retrieve the previous value once thirty
seconds have passed.
4.- When the programmer is inserted into
the connector on the front of the processor,
the first menu will appear. This is the input
channel number. In case of reference 5870
the channel number corresponds to an UHF
Channel (CCIR 8MHz, standars G, H, I, K, L),
and can vary from 21 to 69. In case of refe-
rence 5871 the channel number corres-
ponds to the CCIR 7MHz channel table
(Australia) and it can be any number from 6
to 12 (BIII) or 28 to 69 (UHF). The green LED
will also light up. For example, if the selec-
ted channel were number 52, the display
would appear like this:
A change of channels can be carried out
directly using the & buttons.
A change in the input channel can be saved
by pressing the button for a few seconds,
as explained earlier.
5.- The following menu that appears (by
pressing the button) corresponds to the
measurement of the input level to the exci-
ter. This is an approximate reading that indi-
cates if the level of the input signal is within
the correct working range of the relay trans-
mitter or if it too low (thereby indicating the
need for a preamplifier).
If the input level is within the correct working
range, the display will read:
If the input level is lower than -57 dBm (52
dBµV) the display will read:
30
DTT Channel Processor
Extended menu
It can be accessed by pressing the
ton for 2 seconds. The menu selection and
the process of changing and saving the data
is carried out in the same way as in the
Normal Menu.
Once in the Extended Menu, the program-
mer will return to the Normal Menu automa-
tically after there has been a modification
and subsequent saving of any of the para-
meters. You can also return to the Normal
Menu (when nothing has been changed) by
pressing the button again for a couple of
seconds.
1.- The first Extended Menu that appears
corresponds to the processor's address
for remote control via Televés' headend
control system. For example, if the address
assigned to the relay transmitter is 45, the
display will read:
The processors are connected to a common
control bus (marked CTRL in the exciter of
each relay transmitter) and each device
must have a unique address in the bus (bet-
ween 1 and 254). Therefore it is the insta-
ller's responsibility to make sure that none
but-