dSCR (Digital satellite cable router) multiswitches SRM523, SRM543
Vers. 1.02
1
EN
This product complies with the relevant clauses of the European Directive 2002/96/EC. The unit must be recycled or discarded
according to applicable local and national regulations.
Equipment intended for indoor usage only.
Functional grounding. Connect to the main potential equalization.
This product is in accordance to following norms of EU: EMC norm EN50083-2, safety norm EN60065, RoHS norm EN50581.
This product is in accordance with Custom Union Technical Regulations: “Electromagnetic compatibility of technical equipment“
CU TR 020/2011, “On safety of low-voltage equipment“ CU TR 004/2011.
This product is in accordance with safety standard AS/NZS 60065 and EMC standards of Australia.
Product description
Cascadable single cable multiswitches SRM523 and SRM543 is intended for the distribution of satellite and terrestrial
signals for up to 32 satellite tuners or receivers on each outputs pair.
The series consist of:
SRM523
has 1 pair subscribers outputs (2 outputs) and 1 signal processor.
SRM543
has 2 pairs subscribers outputs (4 outputs) and 2 independent signal processors.
The multiswitches have 4 passive SAT IF and 1 active Terrestrial TV trunk lines and 4 x DC power modes for convenient
DC powering options (see chapter
„Installation instructions”
).
The device ensure an independent access for every subscriber to any SAT IF or Terrestrial TV trunk line.
These multiswitches automatically detect SCR/dSCR mode or legacy format from the receiver. The dSCR switches also
feature fully automatic level control, negating the need for any gain or level adjustments in most installations. It’s built into a
zinc alloy die cast housing for extreme interference immunity. The housing of multiswitches meets more stringent screening
requirements according to EN50083-2, class A.
Control according to EN50494/EN50607 (SCR/dSCR) as well as Legacy (+13 V/+18 V/22 kHz) commands.
According to the standard ETSI EN 303 354 V.1.1.1, TERR TV band amplifier of multiswitch type is Launch, selectivity clasification 0.
Safety instructions
Installation of the multiswitch must be done according IEC60728-11 and national safety standards.
The multiswitch is powered from the stabilized power 20 V. This voltage is not dangerous to life.
External power supply must have a short circuit protection.
Any repairs must be made by qualified personnel.
To avoid damaging of the multiswitch do not connect the supply voltage until all cables have been connected correctly.
The device shall be mounted in vertical position with RF input connectors on the top side on a wall or other nonflamable
surface.
The multiswitch must be fixed with steel screws Ø 4-4.5 mm. The screws are not included in a package.
Do not expose multiswitch to moisture or splashing water and make sure no objects filled with liquids, such as vases,
are placed near or on the unit.
Avoid placing the multiswitch next to central heating components or direct sunlight and in areas of high humidity.
No naked flame sources, such as lighted candles, should be placed on multiswitch.
If the multiswitch has been kept in cold conditions for a long time, keep it in warm room no less than 2 hours before powering.
The ventilation should not be impeded by covering the multiswitch with items, such as newspapers, table-cloths, curtains.
The mains socket of external power supply must be easily accessible.
IMPORTANT WARNINGS!
Before connecting any products to a system, it is essential to make sure the
system power supply is switched off
. Avoid
short-circuit or overload of any power supply. Never “HOT-SWAP” any system components as this may result in damage to
the newly introduced or existing components.
The SRM523 and SRM543 multiswitches are intended only for indoor installation or installation in a suitable weatherproof
outdoor cabinet (in this case ensure good ventilation conditions).
These multiswitches must not come into contact with moisture or be installed in areas of high humidity or heat.
Suitable for moderate and tropical climates.
Always mount the multiswitch securely to a wall or bulkhead panel so it cannot hang or swing on its coaxial cables as this
may strain the internal circuit board and components.
Always connect all of the coaxial cables to the multiswitch before connecting the power. These units are not designed to
be “HOT-SWAPPED” or connected to a live system.
Always be sure that connecting cables shield and multiswitch functional grounding clamp have common potential before
powering the system. Floating voltages can be created in an un-earthed system which may cause damage and can be dangerous.
Momentary short-circuit of any cables may be enough to damage the sensitive electronics within the multi-switch or the
connected system.
Always allow plenty of ventilation around the multi-switch and do not allow it to be covered with materials such as loft insulation.
We recommend at least 5 cm of airspace around the multi-switch. Digital products can get hot to the touch and require
a flow of air to avoid overheating.
SRM523 and SRM543 multiswitches is designed only to work with Ku band Quattro LNBs.
LNB’s and other system equipment connected to the multiswitch SAT H,Lo and H,Hi trunks inputs/outputs can be powered
from the same power supply as the multiswitch.
To avoid damage not covered by warranty
DO NOT EXCEED MAX. CURRENTS
. See “
Technical characteristics
”
for max. current for external equipment.
DO NOT OPERATE THE DC POWER TO H TRUNK LINES SWITCH
(see Figure 1, pos.17) unless you totally
understand the power demands of the system and confirmed they are 2 A or less.
ALWAYS LEAVE THE DC
POWER TO H TRUNK LINES SWITCH IN THE "OFF" POSITION
when inserting SRM523, SRM543 into an
existing multiswitch installation. Damage caused by current overload is not covered by the manufacturer’s warranty.
