TechniSat TechniRouter 9/2x4 G - Handbuch (Seite 38)

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Ensure amplification towards the TechniRouter (with an intermediate amplifier 9Z or,
based on topology, with an active splitter 9/2A) or, if necessary, at the output of the
socket
- if there are extended lengths of cable (over 70 m in total) to the subscriber,
- when there are many sockets connected in series,
- for old cables,
- when using a very small satellite dish.
You will find further information in regards to the satellite channel routing concept
in chapter 7.
5 Construction of Systems with More then One Cascading Units
Distribution systems for satellite and broadband cable (or terrestrial) signals with more than
24 subscriber points should only be installed by authorized specialists who are familiar with
the connection circumstances and who have a selective antenna measurement equipment.
To facilitate understanding, here are some brief details of functional operation:
Within the switching matrices, signals are handled via the directional coupler and
subsequently channelled via pin-diode-switcher to the converter circuit of the subscriber.
After the conversion, the signals are collected, amplified and merged to one cable for the
subscribers. Although the switching matrices can operate via this path with an amplification
of up to 20 dB, the level within the switching matrix is considerably lower, hence the input
level of the switching matrix should not go below 45 dBµV.
The accessories, which can be used, are specifically described in the corresponding
operation instruction:
Intermediate Amplifier 9Z Art. No. 0000/3231
The gain and the fine-tuned slope equalization of the device are set up to compensate loss
via the cable and/or components of 12 dB at 2150 MHz. The gain of the terrestrial signal is
adjustable. The 9Z is DC-supplied from the TechniRouter via all eight Sat-trunks.
It is not return-path-compatible.
Passive Distributor 9P Art.-Nr. 0000/3232
With a maximum loss of 4 dB, this device is used to split the power of the signals of all
satellite IF banks and the terrestrial signal into two outputs.
Both outputs are DC coupled.
Active Tap 9/2A Art.-Nr. 0000/3233
This component is designed to tap the signals of trunk lines several times -twice for each
device- and then to feed them into post-switched subdivisions. The trunk lines are DC-
permeable and almost loss-free; the taps are amplified and slope-equalized.
The device itself is supplied via the tap 8, but does not feed the trunk lines. At the trunk
lines of the active tap 9/2A, a device with a power supply must be connected at all times in
order to supply the switching matrices, amplifiers and LNBs in the trunk line.
The 9/2A is not return-path-compatible.