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Switching units (multiswitches)

Cascadable multi-switches TERRA MS951, MS952

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Manufacturer:
System:
type of equipment:

Advantages:

  • - cascadable distribution system of signals of 8-satellite polarizations and terrestrial TV for floor-by-floor distribution or for building network according to “star” distribution scheme;
  • - possibility of power supply to the low-noise converters: both via terminal multi-switch (MS952), and from multi-channel amplifier SA901;
  • - passive path of terrestrial TV allows the perception of ground programmes without turning on the CTB

 receiver;

  • - depending on the quality of cable used, for interstage connection, it is possible to cascade up to 5
  • multi-switches without usage of  compensating amplifier;
  • - applicable for use of reverse channel;
  • - high reverse isolation between the outputs;
  • - recommended power supply source - SA125A-1913G-S(F);

MS951

  • transmission 9×4 multi-switch.

MS952

  • terminal 9×4 multi-switch;
  • possibility of the power supply upwards.

Technical characteristics:

TYPE

MS951

MS952

Frequency range

satellite TV

950 - 2400 MHz

terrestrial TV

5 - 862 MHz

Masing for the takeoff

satellite TV

3 dB

terrestrial TV

-19 dB

Maximum output level IMD3=30 dB (EN50083-3)

93 dB mkV

Reverse isolation along the inputs of satellite TV

>30 dB

Reverse isolation between the outputs

satellite TV

> 30 dB

terrestrial TV

> 30 dB

Masing in the trunk

satellite TV

-3 dB

-

terrestrial TV

-3.5 dB

-

Through current

1 А max

Through current from external18V source

via V lines

-

14 V & 0.5 A max

via H lines

-

18 V & 1 A max

Current consumption from receiver

<60 мА

Control signals

14/18V, 0/22 kHz, tone impulse or DISEqC 2.0

Operating temperature range

-20° ÷ + 50°C

Dimensions

199 × 106 × 34 mm

199 × 97 × 34 mm

Weight (packaged)

0.4 kg

0.37 kg

Connections

       Notes:

                The examples of the construction of distribution networks using commutators made by TERRA company MS951 and         MS952 can be viewed here.