BLANKOM BMS-1732K 19 Inch Multiswitch User Guide

Quickstart
BMS-1732K
19” Multiswitch for 4x SAT + 1x Terrestrial

This 19” 2 RU rackmount Multiswitch -which can be cascaded- is designed for up to 4 SAT position Inputs (+ Terrestrial) from standard quattro LNB’s or from optic-electric converters such as BFR-41 via 1 CWDM ­ Fibre in a Headend and distribute up to 32 RF outputs to the Headend receivers. 4-fibre solutions are coming soon…

Main Features

• Dual redundant internal high isolated industrial Power supplies
• Low power consumption, air circulation due to 2 separate fans
• Active TERR input (passive input available), LNB On/Off switch
• Tap loss 0,5dB , High isolation
• Quad & Quattro LNB compatible
• 950-2150MHz and 47-870MHz lossless sharp filter for each subscriber outputs
• Optimized RF design for the usage of DVB IPTV and Digital Headend
• Low signal resistant due to high gain through the receiver outputs
• Up to 8 consecutive cascading’s possible
• LED indicators for each receiver output
• RF – output port protection up to 100 volts
• +4dB equalizer range for each RF output compensating slope
• Available for 2x SAT – positions = BMS-0932K

Technical Specifications

Inputs:| SAT / IF
TERR| 16
1
---|---|---
Receiver Outputs| 32
Cascadable loop-through Outputs| SAT / IF
TERR| 16
1
TERR Gain| 23…25dB
Selection of LNB / Polarity 13V, 18V, 13V 22KHz, 18V
Frequency Range| SAT / IF TERR| 950-2150MHz 47-870MHz
Tap-loss Subscriber Outputs| SAT / IF @ 950MHz
SAT / IF @ 2150MHz
TERR. Rec / Out 1-8
TERR. Rec / Out 9-16
TERR. Rec / Out 17-24
TERR. Rec / Out 24-36| +1dB±1
+1dB±1
-4dB-1-2
-4dB±2
-4dB-1-2
-4dB±2
Max. Input Level| SAT / IF TERR| 98dBpV
88dBpV
Max. Output Level| SAT / IF IMA3 TERR| 102dBpV 85dBpV
Return-loss| Input / Output| 10dB / 14dB
Isolation| SAT-SAT SAT-TV| >33dB

37dB
Usable LNBs| Quad & Quattro
Max. Current from Subscriber Output| 41mA
Max. Current from System| 960mA
Max. Current with LNB| 920mA
Operating Temperature| -85…4-50°C
Dimensions| 320 x 320 x 90mm (2RU)

Corresponding products:
BPF-41, optical Transmitter for 4x SAT + 1x terr. / BFR-41 opt. Receiver- converter:

Application example:

We strongly recommend the installation by technical skilled people.
All needed connection to the LNB’s SAT-A…D as well as the cascading outputs are printed to the rear and front-panel so that a mismatching usually cannot be done. Please assure the grounding of every component (BMS, Coax cables as well as Antennas/dishes) to avoid voltage differences between every device. The grounding should also be fit to earth potential to secure them against lightning influences.
The BMS supports cascading to a following unit to double or even multiply the needed output numbers. (32 -> 64 -> 96…) A cascading of more than 7 units is not recommended because of the attenuations of each. The cascade units should disable the power
Before you connect the both power supplies to the power source by the power cords, please connect all coax-cables and the max. 4 LNB’s or the optical – electrical fibre receiver to it.
Please take care about not making any Coax- shortages and check the cables before power connecting. The device runs with only one PSU connected. The 2nd PSU is in standby just in case the first one will fail – and will take over the power-loss job. So it is recommended not to connect them both to the same power-line and fuse system:

Both have one small fuses – just in case something happens… control these.

Remark: The LNB-powering can be switched OFF (default is = ON) by the front panel switch.
Connected optical receiver -> electrical changer installed before the unit in between LNB’s and the SAT Inputs of the BMS-1732K -like our BFR-41 or similar- do not need the LNB powering ON – so you can switch it to OFF.

Active Terrestrial Input and distribution to every output:
The unit comes with an additional terrestrial Input F-Connector serving DVB-T/T2 frequencies to pass through to the output receiver ports. The terrestrial output depends of course from the amount of energy you provide into its Input. These needs to be carefully balanced and eventually before the switch input: Attenuated or amplify to raise best conditions for the pathway of the combined Terrestrial and satellite frequency range. As example for an active T-Version: 5dB difference which means the terrestrial output signal is 78% less (remember: 3dB = 50%) at the Multiswitch output by optimal Input values. So the signal quality -as a distribution component- to all the end user wall-outlets is much better by the active internal T-Amplifier- but need to be balanced to not overload it.

Important!
Trunk lines (cascade outputs) -if not in use- should always be terminated with 75Ohm incl. DC-Blocker !!! Example:

Now some parts in dual language:

Installation guide for Fconnectors:

Please install according to the sticker on the Multiswitch
Note: Electrical installations should only be done by well-educated and skilled technicians!

The LNC –connectors are marked as:
HH= High-Band Horizontal (18V/22KHz)
LH = Low-Band Horizontal (13V/22KHz)
LV = Low-Band Vertical (13V / 0KHz)
HV= High-Band Vertical (18V / 0KHz)

Below are outputs for cascading units.
We assume that your technician nows about DiSEqC ….

Electronic equipment is not household waste – in accordance with directive 2002/96/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL dated 27th January 2003 on used electrical and electronic equipment, it must be disposed of properly.

At the end of its service life, take this unit for disposal to an appropriate official collection point

Installation and safety instructions

• The equipment described is designed solely for the installation of satellite receiver systems.
• Any other use, or failure to comply with these instructions, will result in voiding of warranty cover.
• The equipment may only be installed in dry indoor areas. Do not mount on or against highly combustible materials.
• The equipment must be provided with an earthing wire (Cu, at least 4 mm2).
• The safety regulations set out in the current EN 60728-11 and EN 60065 standards must be complied with
• Connector: HF plug 75 Ohm (series F) to EN 61169-24.
• Unused subscriber ports should be closed off by 75 Ohm resistors (e.g. EMK 03).
• Unused trunk outputs must be terminated with 75Ohm resistors including DC Blocker. Otherwise the device may be inoperable or damaged.
• Please check the installation against shortage in coax cables and connectors before switching on. The input levels should be adjusted accordingly. Power-LED’s showing operational mode. If this is not illuminated, please check the power source.
• Current-carrying unit
• Do not open or tamper with the unit!
• When working on the system always unplug the mains plug from the wall socket!
• Ensure adequate clearance! Min. 5 cm to all sides!
• Do not install overhead.
• Free circulation of air must be possible to discharge the heat emitted by the unit. Risk of overheating!
• Permissible ambient temperature -20 to +50°C

We recommend using and installing 19” rails in your rack before you mount the BMS and install the F-connectors and cables.

Important notes:

• No liquid-filled items may be placed on top of the power supply unit.
• The power supply unit must not be exposed to dripping or splashing water.
• The mains plug must be easily accessible and operable.
• The only reliable method of disconnecting the unit from the mains is to unplug it.
• If the inner cable conductor diameter is greater than 1.2 mm or in case of burr, the device sockets may be destroyed.

Please use appropriate measurement equipment when installing and do not use coax length > 50m between Dish-Farm and the Multiswitch to secure signal quality and less slope.
Using a handy instrument from i.e. PROMAX or for the cheaper controlling an ALPSAT:

Professional and Semi-professional

Example Spectrums:

Shown is a good quality output level of 80 dBµV directly from a BLANKOM 32 -> 32 -Multiswitch cascaded output. The first 2 showing ASTRA Satellite high band while the 3rd shows Eutelsat Hotbird 13°E on DiSEqC SAT Pos. 2 with a better adjusted LNB at the dish(es). So your signal quality depends on: Dish direction and angles, LNB focus and angle and also its LNB-quality and the cable length and quality.

Annex: Table for Conversions of Power @ 75Ω

IRENIS GmbH
Hauptstr. 29
31171 Nordstemmen- Germany
Phone: +49 5069 4809781
IRENIS technical hotline VoIP +49 5069 4399 -860 or -8601
Managing Director: Dipl.Ing. Murad Önol
Commercial Register: HRB 206370 / District Court Hildesheim
Web: www.blankom.de E-Mail: info@blankom.de

Subjects to change w/o notification
BMS-1732K-quick-start_EN_V1.2.docx

References

• IPTV DVB SMATV CATV Digital Signage Professional Headend Solutions
• IPTV DVB SMATV CATV Digital Signage Professional Headend Solutions

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