Single-cable Cascadable dSCR Multiswitch: Terra SRM-523 (class A, active terr. TV path)

Code: R80523
€105.57
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The SRM-523 R80523 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-523 R80523 multiswitch fully supports receivers operating in two dynamic modes: SCR (Unicable I - 8 User Bands) and dSCR (Unicable II - 32 User Bands).
• Multiswitch for installations based on Unicable I/II receivers
• Number of outputs: 2xdSCR/Legacy
• Built-in AGC circuit in SAT path
• Quattro LNB compatible
• • Full compatibility with EN50494 standard - Unicable I - 8 UBs (User Bands)
• Full compatibility with EN50607 - Unicable II - 32 UBs (User Bands)
• Mixing of EN50607 and EN50494 receivers
• In dynamic mode signal split up to 32 receivers

Warranty

4-year warranty.

Support

Details

The programmable SRM-523 multiswitch has two dSCR / Legacy outputs allowing 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). An output can be in Legacy mode used as a typical SAT output (like in Universal LNBs or standard (legacy) multiswitches) for connecting a legacy SAT TV receiver).
The SRM-523 R80523 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-523 R80523 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-523 R80523 multiswitch has 5 inputs (four polarization/band pairs (VL–HL–VH–HH) plus passive terrestrial TV) and two dSCR / Legacy outputs allowing 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). An output can be in Legacy mode used as a typical SAT output (like in Universal LNBs or standard (legacy) multiswitches) for connecting a legacy SAT TV receiver).
By default, the outputs of the SRM-523 R80523 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 two 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).
The default settings of the SRM-523 R80523 multiswitch (operating mode, User Bands 16+16, UB bandwidth, output level) can be modified with the use of the dedicated PC102W R80561 programmer.
Key features
  • Full compatibility with EN50494 standard - Unicable I - 8 UBs (User Bands)
  • Full compatibility with EN50607 - Unicable II - 32 UBs (User Bands)
  • One pair of outputs (2xdSCR/Legacy) and one processor
  • Possibility of using receivers supporting EN50607 and EN50494 standards in the same system (8 x EN50494 + 24 x EN50607)
  • AGC system 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
There are many models of satellite receivers available on the market today. Not all of them support SCR/UNICABLE system compliant with EN50494 and/or EN50607 standard. In the case of implementing solutions based on the standards, all receivers that will be used by subscribers must support SCR/UNICABLE technology. A list of popular satellite receivers available on the Polish market and supporting single-cable multiswitches is provided below:
Ferguson:Cyfrowy Polsat:
  • Decoder HD 5000
  • Decoder
  • EVOBOX PVR
nc+:
  • BOX+
  • mediaBOX+
  • turboBOX+
  • wifi Premiumbox+
UHF TV DVB-T/T2 Antenna: DIPOL 44/21-48 Tri DigitDAB / DVB-T/T2 Antenna: DIPOL-4/5-128-way SAT / TV / FM Splitter 1>8 Signal4-way SAT/TV/FM Splitter: Signal 1>4FAntenna Triplexer Terra DC015L (VHFI/II+FM-VHFIII-UHF)Single-cable Cascadable dSCR Multiswitch: Terra SRM-523 (class A, active terr. TV path)Switching Power Supply Terra PS202F (20V 2A, Digital SCR)Single-cable Cascadable dSCR Multiswitch: Terra SRM-523 (class A, active terr. TV path)LNB: QUATRO Inverto HOME ProSteel Satellite Dish: TRIAX 100 TD logo [light gray]
The diagram above shows an example installation based on cascadable single cable dSCR multiswitches SRM-523 R80523

LNB: QUATRO Inverto HOME ProDVB-S/S2 (8PSK, QPSK) to 8xDVB-T (COFDM) Transmodulator: TERRA TDX-480 (FTA)Power Supply: TERRA UP413 (12V/4.5A, for Terra modules)Switching Power Supply Terra PS202F (20V 2A, Digital SCR)Single-cable Cascadable dSCR Multiswitch: Terra SRM-522 (950...2150MHz/290...2340MHz, class A, passive terr. TV path)Satellite dish: DIPOL DPL-120 [light grey, RAL7035]4-way Tap: Signal O-4-12dB (5-1000MHz)4-way Tap: Signal O-4-12dB (5-1000MHz)4-way Tap: Signal O-4-12dB (5-1000MHz)4-way Tap: Signal O-4-12dB (5-1000MHz)
Example of SMATV system based on TDX-480 R81621 transmodulator and a dSCR multiswitch. The system allows for reception of satellite channels from the whole Ku band, 11.7 to 12.75 GHz.

Configuration of DVB-S/S2 (8PSK, QPSK) - DVB-T (COFDM) TERRA transmodulator (example: tdx-480 R81621)

Specifications

Product type Multiswitch
Number of converters 1 × quatro
Series SRM
Model SRM-523
Brand TERRA
type pass-through
dSCR/Unicable
Applications Indoor
Type of cooperating converter Quatro Yes
Wideband No
Number of inputs 5
No. of outputs dSCR(Unicable)/Legacy 2 (one pair)
through 5
RF path Active Yes
Preamplifier power supply No
Device specifications
Input RF band MHz 47-862
SAT IF band MHz 950-2150
signal level, RTV dBµV max 96
SAT IF signal level dBµV 60-95
Output RF band MHz 47-862
SAT IF band MHz 950-2150
dSCR/Unicable output + RF path Number of user bands max. 32 for 1 pair
bandwidth MHz 20...60
output level dBµV 104 for RF path, 84 for SAT path (built-in AGC)
RF path gain dB 8
Legacy output output level dBµV 104 for RF path, 78 for SAT path
Bus attenuation FM TV dB <1
SAT IF dB <3
Input/output separation SAT IF (input)/SAT IF (input) dB >30
SAT IF (input)/dSCR (output) dB >30
SAT IF/RF dB >25
Current on bus signal lines SAT IF A max 2
SAT IF (one line) A max 1
FM TV A max 0.25
Current drawn from receiver A max 0.35 (at 13 V)
from DC 20 V input, H line A max. 0.27
DC 20 V switch on bus signal lines from 20 VDC input to H signal lines A 1,73
Die-cast enclosure Yes
Remotely powered Yes
Built-in power supply No
Screening efficiency class A
Compliance with relevant national legislation No
Power supply V/Hz DC 20
Operating temperature °C -20...+50
Dimensions mm 134 × 135 × 30
Weight kg 0,42