Lee Mercer Consultancy
Lee Mercer Consultancy
3 Heywood Farm Cottages, Snowball Hill, Maidenhead, Berkshire, SL6 3LU
Registered in England at 145-157 St. John Street London EC1V 3PW Regn. Number 8405594
LeM Electronics UK Ltd
Using the LeM SCX Range of Multiswitches
Congratulations on buying a LeM SCX multiswitch, one of the most advanced multiswitches
on the market.
This information is designed to help you through the installation of the multiswitch and not
the pairing of the switch with the Sky (or other) Set Top Box. Please refer to our separate
instructions for this process. We recommend that you read through these guidelines
completely before attempting an installation.
The SCX53 range either in 2, 4, 6 or 8 output versions is a combined Legacy, meaning
standard 13/17 volt/22KHz. switching, and SCR (Single Cable Router) which works both on
the BSkyB and EN50494 software.
The term SCR is also known as CSS, Channel Stacking System, Unicable and Sky have
recently adopted the term Single Cable System, they all work in basically the same way and
to the same software protocols noted above.
FYI
in other parts of the world the software may be different and would not work on this version of switch. It is
primarily designed for the UK & Eire as well as Mainland Europe
.
The switches can be used to replace a standard multiswitch in pre existing IRS systems
where a single cable has been installed and there is a requirement to upgrade to a PVR
solution, Sky+ for example. The switches can also be used in conjunction with new
amplifiers and a dish feed to replace a good quality MATV system without re-wiring.
Each output provides for 3 tuners, as an example in a sky set up this could be1 x Sky+ and 1
x Sky Multiroom the cable being split by a suitable splitter after the faceplate in the living
room.
Splitters must be voltage passing from the output to the input only so that voltages do not
run in both directions. failure to use the right type of splitter will make the operation
impossible. If you are installing a Sky+ set top box only then a 2 way splitter is all that is
needed. For a multiroom installation then a 3 way splitter is needed. SCR channels are 9,
(1280MHz.) 11 (1382MHz.) and 14 (1484MHz.) which need to be programmed to the set
top box. We reccommed that channel 9 is used on the Multiroom box and 11 and 14 on the
Sky+ box
PREPARING TO INSTAL
When arriving on site, the first thing to do is to make some measurements so that you have
a baseline to work from. These should be taken from the output of the existing switch. Log
these so that you have all the outputs listed.
No Power Supply is needed to use the SCX53 switch however you will need a PSU to power
the LNB if none is available, Our modal number AL1000 is designed for this and a
connection is provided on the switch to provide a DC path to the LNB. Please note that
existing amplifiers, assuming they are working can be re-used, in which case no PSU will be
required as the amplifier provides power to the LNB.
