page 15
Configuration
Operating manual HVB 21, HVB 31 a. HVB 32 -
Version 01-2021A
First configure the amplifier for the transmission of forward signals:
T
ASK
1.
Remove the housing cover by loosening the cover screw.
2.
When the devices are delivered, the HVB 21, HVB 31 and HVB
32 amplifiers have an attenuator (0...15 dB) [1] and a tilt equal-
iser (0...15 dB) [2] (see left) in the input, which are screwed in.
They can be used to set the desired attenuation and equalisa-
tion. (Input and output are protected against overvoltage.)
3.
You can also set a pre-equalisation of 0 or 7 dB between the
amplifier stages by inserting the
jumper [3] accordingly.
A
TTENTION
:
The maximum operating level must not
be
exceeded! (maximum input level = output level minus the
set gain for 1006
MHz)
R
ESULT
:
The device is now configured for the transmission of forward sig-
nals.
To transmit return signals, the amplifier must be configured accord-
ingly.
The following describes how to configure the amplifier for the trans-
mission of return signals:
T
ASK
1.
When the device is delivered, the attenuator (0...15 dB) [5] is
screwed in and must be set according to the cable network
specifications.
R
ESULT
:
The device is now configured for the transmission of return signals.
A
TTENTION
:
The device is delivered with the attenuator
in
the return path input screwed in to avoid a possible
network malfunction or the destruction of the device upon
being connected.
This setting must not be changed in
networks that do not use a return path!
1
2
3
5
Summary of Contents for HVB 21
Page 1: ...Version 01 2021A ...
