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Digital SCR Multiswitch (Ref: dSCR 9743SK, 9745SK)
1. I
NTRODUCTION
Product description
The 974xSK products are designed to support a wide range of new and existing multiswitch
installations.
Each 974xSK unit has:
4 cascade-able LNB inputs from universal Quattro LNBF: VL HL VH HH
1 terrestrial trunk.
4 or 8 SCR/Legacy outputs (9743SK or 9745SK)
1 DC input.
Each output can support a wide variety of satellite receivers:
In legacy mode, the 974xSK outputs can be used as a standard multiswitch.
In SCR mode, each 974xSK output supports up to 16UBs with all versions of the
single cable technology. This includes OLT, SCR, CSS, EN50494, EN50607, and
newer versions.
As all outputs are independent, the installation can be a mix of legacy and SCR
connections.
The terrestrial part allows to support any service that operates below 1 GHz, which
includes terrestrial reception, cable and DOCSIS reception.
The trunks enable to cascade multiple products to support big installations of more than
100 households in MDU applications, like apartments, or more than 100 rooms in
hospitality environments, like hotels.
The DC power can be inserted at any product. In cascaded systems, multiple power
supplies might be needed. The Johansson reference for the powersupply is 2460 or
2460UK.
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