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Single-cable Cascadable dSCR Multiswitch: Terra SRM-544 (class A, active terr. TV path, AGC)

  2. TV/SAT
  3. Multiswitches
  4. Multiswitches
Code: R80544
€177.41
Price Disc. Quantity Validity
€177.41 0 % from 1 piece
Available
Multiswitch SRM544 5-in/4-out (quatro/wideband) without power supply and with active terrestrial TV path dedicated for RTV/SAT installations supporting dSCR/Unicable system.
• Multiswitch dedicated to work with Unicable I/II receivers
• Number of outputs: 4xdSCR/Legacy
• Built-in AGC in RTV/SAT path
• Active terrestrial TV path
• Built-in LNB type switch: Quatro and WideBand - reducing the number of input cables.
• Fully compliant with EN50494 - Unicable I, 8 UB - User Bands (8 channels)
• Fully compliant with EN50607 - Unicable II, 32 UB - User Bands (32 channels)
• It is possible to mix receivers supporting EN50607 and EN50494
• In dynamic mode, allows sharing to signal up to max. 32 receivers
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Warranty

4-year warranty.

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Details

The programmable SRM-544 R80544 multiswitch has two pairs of Legacy /dSCR + DTT outputs. The 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 in Unicable II standard, after reprogramming with the PC102W R80561 programmer) and through a distribution network based on typical passive satellite taps and splitters operating in the 5-2400 MHz frequency range. 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).
The SRM-544 R80544 pass-through multiswitch is a device that allows to distribute DVB-S/S2 signals from one satellite (two satellite positions after using wideband converters), terrestrial DVB-T and analog/DAB radio based on digital channel stacking technology. The SRM-544 R80544 pass-through multiswitch has full support for receivers operating in two dynamic modes: SCR (Unicable I - 8 User Bands) and dSCR (Unicable II - 32 User Bands). It is equipped with 5 inputs (four polarisation/band pairs (VL-HL-VH-HH) plus an active TV path) and 2 pairs of outputs: dSCR Out (allowing independent division of the RTV/SAT signal to max. (for independent splitting of the RTV/SAT signal to up to 16 receivers using satellite splitters operating in the 5-2400 MHz band for each of the 4 outputs according to the EN50607 standard) /Legacy Out (normal output, as in a Universal-type converter or in classic multiswitches used for connecting a classic satellite receiver). Included AGC circuit (Automatic Gain Control) appropriately corrects the amplification at the multiswitch's output to ensure a constant, preset signal level.
By default, all outputs of the SRM-544 R80544 multiswitch are configured as Legacy (controlled by 14/18 V and 0/22 kHz commands from SAT receivers). Any output switches to Unicable dynamic mode after receiving DiSEqC command compliant with EN50494/EN50607 standard. This means that each individual output can feed via a single coaxial cable and 5-2400 MHz satellite splitters up to 16 receivers (EN50607).
The device can operate in two modes:
  • dynamic mode (DYNAMIC) - the output frequencies are fixed and each is assigned to a receiver (User Bands), signal division using satellite splitters up to a maximum of 32 receivers (for each of the four pairs). The receivers must comply with EN50494/EN50607 (UNICABLE I/UNICABLE II).
  • static mode (STATIC) - both input and output frequencies are fixed, works as an IF/IF converter allowing 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.
The multiswitch requires an external power supply, such as PS202F 20 V 2 A R71468.
The table shows the default settings of the SRM-544 R80544 multiswitch (operation mode - DYNAMIC, 16+16 User Bands, Bandwidth, Level), which can be modified by the dedicated PC102W R80561 programmer.
Key features:
  • built-in LNB switch to change between videaband/quatro converters
  • number of taps - dSCR/Legacy mode: 4 (2 pairs)
  • connector DISEqC control enabling connection of PC102W R80561 programmer and simultaneous configuration of all multiswitch outputs
  • built-in AGC circuit - appropriately corrects the signal amplification, so that the multiswitch outputs provide a constant, preset level; automatic equalization of signal levels up to 84 dBμV in the SAT path and 82 dBμV in the RTV path
  • power supply diagnostics via LEDs on the housing
  • fully compliant with EN50494 - Unicable I, 8 User Bands (8 channels for each of 2 pairs)
  • fully compliant with EN50607 - Unicable II, 32 User Bands (32 channels for each of the 2 pairs)
  • it is possible to mix receivers supporting EN50607 and EN50494, in the same network, on each output (8 x EN50494 + 24 x EN50607)
There are many models of different satellite receivers on the market today. Not all of them support the SCR/Unicable system in accordance with EN50494 or EN50607. The prerequisite for the use of SCR/UNICABLE technology is its implementation in the receiver. List of available satellite receivers that support single-cable multiswitches:
Ferguson receivers:Cyfrowy Polsat receivers:
  • HD 5000 decoder
  • HD 5500s decoder
  • EVOBOX PVR
nc+ receivers:
  • BOX+
  • mediaBOX+
  • turboBOX+
  • wifi Premiumbox+
  • UltraBox NC+

Specifications

Product type Multiswitch
Number of LNBs 1 × quatro lub 2 × wideband
Series SRM
Model SRM-544
Brand TERRA
type pass-through
type dSCR/Unicable
Applications Indoor
Type of cooperating converter Quatro Yes
Type of cooperating converter Wideband Yes
No. of inputs 5
No. of outputs dSCR(Unicable)/Legacy 4 (two pairs)
through 5
RF path Active Yes
RF path Preamplifier power supply No
Device specifications
Input RF band MHz 47-862
Input SAT IF band MHz 290-2350, 950-2150
signal level, RTV dBµV 55-85 (for 8 channels)
SAT IF signal level dBµV 65-105
Output RF band MHz 47-862
Output SAT IF band MHz 950-2150
dSCR/Unicable output + RF path Number of user bands max. 32 for 1 pair
dSCR/Unicable output + RF path bandwidth MHz 20...60
output level dBµV 82 for RF path (built-in AGC), 84 for SAT path (built-in AGC)
Legacy output output level dBµV 78 for SAT path (built-in AGC), 82 for RF path (built-in AGC)
Bus attenuation FM TV dB <4
Bus attenuation SAT IF dB <4
Input/output separation SAT IF (input)/SAT IF (input) dB >30
Input/output separation SAT IF (input)/dSCR (output) dB >30
SAT IF/RF dB >25
Current on bus signal lines SAT IF A max 3.2
Current on bus signal lines SAT IF (one line) A max 1.6
FM TV A max 0.2
Current drawn from receiver A max 0.02
Current drawn from 20 VDC input, H/V line A max 0.5
DC 20 V switch on bus signal lines from 20 VDC input to H signal lines A max 1.5
Die-cast enclosure Yes
Remotely powered Yes
Built-in power supply No
Screening efficiency class A
Compliance with relevant national legislation YES (with 2 wideband converters)
Power supply V/Hz DC 20
Operating temperature °C -20...+50
Dimensions mm 134 × 135 × 30
Weight kg 0.44