Terra Unicable SRM543 dscr Profi Class A Multischalter

The programmable SRM-543 multiswitch has two pairs of Legacy /dSCR +Terr. TV outputs. The SAT IF outputs allow in dSCR mode for independent operation of up to 32 SAT dSCR receivers/STBs, fed in via two coaxial cables (16+16, default configuration) or via one coaxial cable (32 from one output, after reprogramming with the PC102W R80561 programmer). In Legacy mode, each of the outputs can be used as typical SAT output (like in Universal LNBs or standard (legacy) multiswitches) for connecting a legacy SAT TV receiver).

Key features

Compliance with EN50494 - Unicable I, 8 UBs (User Bands) from each pair of outputs

Compliance with EN50607 - Unicable II, 32 UBs from each pair of outputs

Two pairs of outputs ((4xdSCR/Legacy), two independent processors

Possibility of using receivers compliant with EN50607 and EN50494 in the same distribution network (8 x EN50494 + 24 x EN50607)

AGC system ensures stable 84 dBμV output level ensures stable 84 dBμV output level within the whole rated range of the input levels

Active terrestrial path (built-in amplifier)

Dynamic mode: distribution of signals to up to 32 receivers

Static mode: IF/IF converter

The SRM-543 R80543 cascadable single-cable multiswitch allows for distribution of DVB-S/S2 signals from one satellite and terrestrial signals (DVB-T, DAB/FM radio). The satellite signals can be distributed by means of dSCR technology (digital Satellite Cable Router), requiring only one coaxial line and satellite splitters to provide the signals to compatible SAT receivers, along with terrestrial signals that can be received by standard televisions and radios. The SRM-543 R80543 multiswitch fully supports receivers operating in two dynamic modes: SCR (Unicable I - 8 User Bands) and dSCR (Unicable II - 32 User Bands). The digital signals should be split among the receivers with the use of satellite splitters operating in 5-2400 MHz band.

The SRM-543 multiswitch has 5 inputs (four polarization/band pairs (VL–HL–VH–HH) plus passive terrestrial TV) and 4 outputs (two pairs). In dSCR mode, each of the four Legacy / dSCR +Terr.TV outputs allows for independent operation of up to 16 SAT dSCR receivers/STBs (16+16 from one pair), or 32 from one output, after reprogramming with the PC102W R80561 programmer). In the Legacy mode, each output can be used for connecting a legacy SAT TV receiver, in exactly the same way as an output of a Universal LNB or of a standard (legacy) multiswitch.

By default, the outputs of the SRM-543 R80543 multiswitch operate in Legacy mode (with 14/18 V, 0/22 kHz control signals). They switch to Unicable dynamic mode after receiving DiSEqC command from a receiver/STB compliant with EN50494 or EN50607 standard. It means that each of the four outputs of the multiswitch can independently feed up to 16 receivers via a single cable (in the EN50607 standard).

The device can operate in two modes;

DYNAMIC - fixed output frequencies (User Bands) allocated for individual dSCR/Unicable receivers (distribution via single coaxial cable to up to 8 (EN50494 - UNICABLE I) or 32 (EN50607 - UNICABLE II) receivers);

STATIC - fixed input and output frequencies, IF/IF conversion allowing for distribution of signals from 32 satellite transponders to an unlimited number of receivers.

The programming of dSCR multiswitches is performed by the dedicated PC102W R80561 programmer.

The die-cast housing provides high screening efficiency by preventing the penetration of interfering signals to the unit.

Similarly to other multiswitches, the signals to SRM523 R80523 multiswitches should be fed from QUATRO LNBs.

The multiswitch should be powered from an external power supply, e.g. PS202F R71468 (20 VDC, 2 A).