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2.3.2 Earthing
An external protective earth, providing protection against RF and transient currents,
should be connected to the mounting bracket.
2.4 Other Interface Connections
2.4.1 L / S / UHF-Band Connections
These are provided on the front face and have the following characteristics;
Converter Type
UpConverter
DownConverter
The use of high quality cables and connectors for L / S / UHF-band signals is strongly
recommended. Cables and connectors should be rated for operation up to 2200MHz
for L-Band and 2500MHz (or above, as appropriate) for S-Band. Care should be taken
when handling these cables, avoiding stress to connections, tight bend radii and
damage from sharp objects, all of which can degrade system performance.
Depending upon the unit type, these connections can also be used to interface the
10MHz reference signal (at a nominal 0dBm level) and the DC power (+22.5V @
0.5A) to the external BUC/BDC/LNA/LNB, as appropriate.
2.4.2 L / S / UHF-band Monitor Output Connections (optional on some units)
These are provided on the front face and have the following characteristics;
Converter
Type
UpConverter
DownConverter
Monitor signal levels are typically -20dBc ±3dB.
2.4.3 IF Connections
These are provided on the front face and have the following characteristics;
Converter Type
UpConverter
DownConverter
The IF input frequency should be within the range 50 to 90 MHz (100 to 180MHz with
the 140MHz option).
Page 18
Connection
Type
N-type (female)
N-type (female)
Connection
Panel Label
Type
'L-Band' or
TNC (f)
'L-Band
Monitor'
'L-Band' or
TNC (f)
'L-Band
Monitor'
Connection
Panel
Type
Label
'RF In'
N-type
(female)
'Rf Out'
N-type
(female)
P7001R & P7002R Series Converters
Panel Label
Impedance
'RF Out'
50Ω
'RF In'
50Ω
Impedance
Notes.
50Ω
Monitors L/ S / UHF-band output to BUC
or HPA.
50Ω
Monitors L/ S-band input from BDC, LNB
or LNA.
Impedance
Notes.
50Ω
Optional 75Ω impedance.
50Ω
Optional 75Ω impedance.
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