Jak zaprojektować instalację multiswitchową
Zakończenie kabli ze wszystkich lokali mieszkalnych
Step 1
Finish the cables from all apartments on the switch panels. One panel of the switchboard falls on one cascade of multiswitches. For e.g. 45 apartments, 3 switch panels should be used.
Planning the number of multiswitch cascades
Step 2
Plan the appropriate number of multiswitch cascades. Each cascade consists of the active multiswitch DY 04 / DY 06 / DY 08 and the passive multiswitch DY 94A / DY 96A / DY 98A.
For e.g. 45 apartments, 3 cascades of multiswitches are sufficient:
- DY 08 + DY 98A = 16 apartments
- DY 08 + DY 98A = 16 apartments
- DY 08 + DY 96A = 14 apartments
Altogether there are 46 subscriber ports.
Choose the right number of racks. 2 fixed racks are enough for 3 cascades of multiswitches.
Choosing the right amplifier
Step 3
For each cascade of multiswitches, the following signals should be connected: FM radio 90dBµV, DVB-T TV 96dBµV, satellite signals 80dBµV.
Choose the right amplifier – usually one rack with a DY 90 amplifier is enough
Selection of multiswitch installation
Step 4
Supply signals from terrestrial antennas and satellite antennas to the DY 90 amplifier. The levels of these signals should be not less than: FM radio 83dBµV, DVB-T television 86dBµV, satellite signals 70dBµV.
Signal distribution via coaxial or optical fiber cables can be performed in larger installations. You can use panels with signal taps, an additional DY 90 amplifier in a smaller 1HU rack, etc.
In fiber optic installations a rack with fiber optic receivers should be used.