Code: R80581

€303.55

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Multiswitch SRM581 5-in/8-out (quatro/wideband) without power supply and active terrestrial TV path dedicated for RTV/SAT installations supporting dSCR/Unicable system.

• Multiswitch dSCR/Unicable
• Compatible with WideBand converters
• 2 satellite positions - 4 coaxial cables
• 4 pairs Legacy or Unicable outputs
• Capable of connecting up to 128 receivers
• Built-in AGC system
• Possibility to use programmer to change default settings
• Screening class A

Estore: Multiswitches Library: About TV & SAT Antennas (3), In the Home (5), SMATV Systems (15), Installation Components (13), Designing (4), Measurements (4), Diagrams (13), Some Theory (12), DVB-T & DAB (9), CPR (1), HDMI (3).

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4-year warranty.

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Details

The SRM-581 R80581 programmable multiswitch is equipped with 4 pairs of dSCR/Legacy outputs + Terr. TV out. The single-cable dSCR mode allows independent division of up to 32 SAT STB receivers using two coaxial cables (up to 16 receivers from each output, 16+16 default configuration) or one coaxial cable (32 receivers from one output, after reprogramming with the PC102W R80561 programmer) for each pair. The output in Legacy mode (regular output, as in a Universal LNB or in classic multiswitches) allows connection of a classic satellite receiver.

The SRM-581 R80581 pass-through multiswitch is a device that allows distribution of DVB-S/S2 signals from two satellite positions, DVB-T terrestrial TV and FM/DAB+ radio via a single coaxial cable, based on digital channel stacking technology. The SRM-581 R80581 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). The SRM-581 is equipped with 5 inputs: two pairs of SAT IF inputs (290...2340 MHz (V1, H1, V2, H2), allowing to feed satellite signals from two Wide Band A98222 converters), an active Terr. TV (DVB-T/Radio signal) and 4 pairs of outputs: dSCR Out (enabling the signal to be split independently to max. 16 receivers through one coaxial cable for each of the 8 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).

By default, all outputs of the SRM-581 R80581 multiswitch are configured in Legacy mode (the receiver sends a control signal for this purpose: supply voltage 14/18 V, switching signal 0/22 kHz) and switch to Unicable as soon as it receives a DiSEqC command compliant with the EN50494/EN50607 standard (dynamic mode). This means that each of the two outputs of the multiswitch for each of the 4 pairs can independently split the signal to up to 16 receivers using a single EN50607 standard coaxial cable. The digital signal available at the output is supplied to the end receivers using satellite splitters operating in the 5-2400 MHz band.

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 one coaxial cable up to a maximum of 32 tuners (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.

SMATV systems based on SRM-581 multiswitches should be fed from Wideband or QUATRO. LNBs (the use of the latter will require re-programming of the multiswitch).

The multiswitch requires an external power supply, such as PS202F 20V 2A R71468.

The table shows the default settings of the SRM-581 R80581 multiswitch (operation mode - DYNAMIC, 16+16 User Bands, Bandwidth, Level), which can be modified by the dedicated PC102W R80561 programmer.

Key features:

fully compliant with EN50494 - Unicable I, 8 User Bands (8 channels for each of 4 pairs)
fully compliant with EN50607 - Unicable II, 32 User Bands (32 channels for each of the 4 pairs)
it is possible to mix receivers supporting EN50607 and EN50494 in the same network (8 x EN50494 + 24 x EN50607)
Built-in AGC circuit - appropriately corrects the amplification of the signal so that its output provides a constant, preset level, automatic equalization of signal level up to 84 dBμV
feed signal from Wideband converter requires only two cables (one satellite position) or four (two satellite positions)
compatible with quatro type converters after reprogramming with PC102W R80561 programmer
in static mode works as IF/IF converter

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:

Ferguson Ariva 53
Ferguson Ariva 103
Ferguson Ariva 203
Ferguson Ariva 153 Combo
Ferguson Ariva 253 Combo
Ferguson Ariva 4K Black
Ferguson Ariva 4K Combo Black

Cyfrowy Polsat receivers:

HD 5000 decoder
Decoder
EVOBOX PVR

nc+ receivers:

BOX+
mediaBOX+
turboBOX+
wifi Premiumbox+

Recommended library article:

Single-cable multiswitches -TERRA dSCR (Unicable system)

Example RTV/SAT installation enabling distribution of digital signals in dSCR technology with active DVB-T/Radio path. The SRM581 R80581 multiswitch is fed with signals from Wide Band converters.

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Specifications

Product type			Multiswitch
Number of LNBs			2 × wideband
Series			SRM
Model			SRM-581
Brand			TERRA
type			pass-through
type			dSCR/Unicable
Applications			Indoor
Type of cooperating converter	Quatro		No
Type of cooperating converter	Wideband		Yes
No. of inputs			5
No. of outputs	dSCR(Unicable)/Legacy		8 (four pairs)
No. of outputs	through		5
RF path	Active		Yes
RF path	Preamplifier power supply		No
RF path	passive		Yes
Device specifications
Input	RF band	MHz	47-862 (active path), 47-862 (passive path)
Input	SAT IF band	MHz	290-2350
	signal level, RTV	dBµV	max 88
	SAT IF signal level	dBµV	65-95
Output	RF band	MHz	47-862 (active path), 47-862 (passive path)
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	84 for SAT path (built-in AGC), 96 (RF active path)
	RF path gain	dB	8
Legacy output	output level	dBµV	96 (RF active path)
Bus attenuation	FM TV	dB	>1
Bus attenuation	SAT IF	dB	>8
Input/output separation	SAT IF (input)/SAT IF (input)	dB	>30
Input/output separation	SAT IF (input)/dSCR (output)	dB	>30
Input/output separation	SAT IF/RF	dB	>25
Current on bus signal lines	SAT IF	A	max 2
Current on bus signal lines	SAT IF (one line)	A	max 1
Current on bus signal lines	FM TV	A	max 0.25
Current drawn	from receiver	A	max 0.02
Current drawn	from DC 20 V input, H line	A	max 1
DC 20 V switch on bus signal lines	from 20 VDC input to H signal lines	A	max 1
Die-cast enclosure			Yes
Remotely powered			No
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	226 × 135 × 30
Weight		kg	0.8