Electrical Feeding - ITS EKSELANS MSC 585 Serie Manual Del Usuario

Reference FA 2500P
Provided Current 2.500 mA
System Consumption
Case 1 280 mA
Case 2 490 mA
Case 3 1.090 mA
4. General adjustments
4.1. MSE and MSC multiswitches adjustments
These multiswitches do not require any adjustement by the installer except having in
consideration the feeding requirements descibed in point 3. Set the "DC Switch" at ON
position to feed:
• Possible mast amplifiers for terrestrial band
• Possible line amplifiers for terrestrial (In case of not using AMP 55 nor AMP 99)
In case of having a reduced terrestrial signal level, it is recommended to
place an AL 23 line amplifier close to the terrestrial antenna or at the points
with a reduced signal level (in a cascade distribution). Note it can be better
to place AMP 55 or AMP 99 since they also amplificate the SAT signal.
MULTISWITCHES MSC 585 / MSC 989 SERIES
MULTISWITCHES MSE 58 / MSE 512 / MSE 98 / MSE 912 SERIES
LINE AMPLIFIERS FOR MULTISWITCHES AMP 55 / AMP 99 SERIES
FA 1210
Offered current with
1.000 mA
these PSUs
Required PSUs
1 1.000 mA
1 1.000 mA
0 2 2.000 mA
4.2. AMP amplifier

4.2.1. Electrical feeding

The amplifiers can be fed using FA 1210 or FA 2500P external power supplies or
remotely from another multiswitch (using the HH coaxial cable connection). Unlike the
MSE and MSC multiswitches the amplifiers do not have a "DC-PASS" switch to feed the
active elements connected to input port "TER IN".
4.2.2. Output level adjustment
Adjust the regulators at each input to adjust the signal with the desired level at the
output of the amplifier.
Important notice: The AMP amplifers do have a TILT in the satellite and terrestrial+return
path bands to compensate the atenuattion of coaxial cable at higher frequencies. This is
fixed. Check technical tables.
Important notice: In big installations it is recommended to calculate the loss attenuation
of the coaxial distribution and adjust the parameters to warrant a correct level and
quality of signal at all terminal outlets of the installation.
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