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Transcript
Stacker De-Stacker and SDS Line Amplifier Enabled 2 L N B i n p u t s i n t o o n e c a b l e B o t h L N B i n p u t s i n d e p e n d e n t l y s e l e c t a b l e b y v o l t a g e / t o n e o r D i S E q C 1 . 2 c o n t r o l s D i S E q C l o o p t h r o u g h t o L N B / M u l t i s w i t c h I n d e p e n d e n t l y P o w e r e d C o v e r s c a b l e l e n g t h s u p t o 6 0 m e t r e s * M a y b e u s e d i n a N o n D i S E q C i n s t a l l a t i o n * R e q u i r e s u s e o f a n S D S L i n e A m p l i f i e r . Product Overview DiSEqC Stacker De-Stacker(SDS) allows two satellite bands (0.95-2.15GHz) to be transmitted via a single common coaxial cable, between the LNB/multi-switch feeds and the satellite receivers (STB). S t a c k e r Combining of the bands is implemented in “Stacker” with frequency UP conversion of one of the satellite signals (SAT) and combining it with the other (SATTV). The second signal, SATTV is not converted and can carry terrestrial signals (15-860MHz) in addition to the satellite band. The combined signal from the “Stacker” is distributed via the common cable and split into the original two signals in “DeStacker”, which also DOWN converts one of the bands (SAT) to the original frequencies. Terrestrial is made available on one of the “De-Stacker” ports. Automatic Slope Compensation allows the unit to cover cable lengths of up to 30 metres. Extendable to cover cable lengths up to 60 metres with the addition of an SDS Line Amplifier. D e S t a c k e r Powering of the system is provided from a separate 20V power supply connected to “De-Stacker” to avoid any switching problems from the Set-top box (STB). PVR Typical DTH Installation Diagram , Hypex Ltd Tel: +44(0)208 908 3111 Fax: +44(0)208 908 3110 [email protected] g l o b a l i n v a c o m . c o m Stacker De-Stacker and SDS Line Amp Enabled D e S t a c k e r S t a c k e r PSU 60m 9x4 Multiswitch SPORT HUMAX 9x4 Multiswitch Typical MDU Installation Diagram Applications The SDS has been designed to allow two satellite signals to be fed down one coaxial cable before being returned to its original configuration to feed two STB’s or a twin tuner satellite STB. Signals can be supplied by either a universal multi-port LNB or more typically from a multiswitch. By allowing DiSEqC commands to pass through the “Stacker” it is possible to connect the unit to a DiSEqC multiswitch for operation on a 9 wire system. Whilst the DiSEqC SDS can be used in DiSEqC applications, it can also be used in situations where DiSEqC is not present. The SDS can be used for coaxial cable lengths up to 30 metres, however from 30 to 60 metres the SDS Line Amplifier must be fitted. Reliable operation is determined by the position of the amplifier, quality of coaxial cable fitted and signal strength from LNB or multiswitch. Specification DeStacker Stacker RF I/P SAT 950 – 2150MHz RF O/P SAT 949-2149MHz RF I/P SATTV 15 – 2150MHz RF O/P SATTV 15-2150MHz COM (Common Output) Port 15-3700MHz COM (Common Output) Port 15-3700MHz Min RF I/P Signal Level's -41dBm (+68dBµV) *30m -39dBm (+70dBµV) with *60m and line amplifier installed in the common cable Noise Figure 19dB Return Loss 10dB min at port A, B and COM for specified frequency ranges. MAX RF I/P Signal Level's -14dBm (+95dBµV) total power Isolation Port to Port 40dB min Noise Figure 18dB Power Supply External +20V/1.2A Switch Mode Power Supply. Return Loss 10dB min at SAT, SATTV and COM Power Consumption 100mA Isolation Port to Port 40dB min Communication Protocols Accepted Voltage, Tone, DiSEqC 1.2 Output DC power for LNB (multi-switch) 400mA Max Power Consumption 100mA *Using Professional ‘Twin Screened’ 75 Ohm Coaxial Cable. SDS Line Amplifier Frequency Range 2.5MHz – 860MHz & 950MHz 3700MHz Insertion Gain Terrestrial: Satellite: 950MHz 2150MHz 2500MHz 3700MHz -1dB ± 1 dB +5dB ± 1dB +6dB ± 1dB +9dB ± 1 dB Satellite: 950MHz 2150MHz 2500MHz 3700MHz 6dB max 5dB max 4.5dB max 4.3dB max Noise Figure GIDS26111058SDS-Di-01 -6 dB min Supply Voltage 10.5V to 21V Current Passed Max 650mA including the SDS current draw. g l o b a l i n v a c o m . c o m