Download Stacker De-Stacker

Stacker De-Stacker
and SDS Line Amplifier
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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).
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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.
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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]
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Stacker De-Stacker and SDS Line Amp
Enabled
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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.
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