GHV 1200-85/204 House Distribution Amplifier /
Hausanschlussverstärker
DOCSIS 3.1
5
EN/DE
3.2
Adjustments & settings
Fig 3 Position of Jumpers/Setting elements
Provisioning of the amplifier using Rotary Switches and Jumpers as shown:
See Fig. 3
Downstream
Setting Range
Default setting
Setting element
Jumper fig.
1
Attenuator (Input)
In 1dB-Steps
0-15 dB
0 dB
Rotary switch
2
Slope (Input)
in 1dB-Steps
0-15 dB
0 dB
Rotary switch
3
Attenuator
(Interstage)
0 / 6 dB
0 dB
Jumper
4
Slope (Interstage)
0 /3/7/10
0 dB
Jumper
Upstream /
Return path
5
Basic gain reduction* - 6 dB
0dB = max Gain
Jumper
6
Attenuator (Input) *
in 1 dB-Steps
0/15 dB
0 dB
Rotary switch
7
Slope (Interstage)
0 / 3 / 6 / 9
3 dB
Jumper
8
Attenuator
(Interstage)*
0 / 6 dB
0 dB
Jumper
9
Return Path
settings
Active / Passive /
OFF
Active
Jumper
*) In order to remain the high signal to noise performance in the return path in most cases it’s recommended to do provisioning
of the return gain by setting elements in following order:
1. Reduce basic gain by 6dB (5) 2. Set interstage attenuator (8) 3. Set input attenuator (6) for the return path
