DVBS2-QAM HEXA
6
Important safety instructions
Caution Statements
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9. Only use attachments/accessories specified by the manufacturer.
10. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or
sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
11. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
Warning
Reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such
as vases, shall be placed on the apparatus.
Safe operation
Should any liquid or object fall into the equipment, please refer to qualified personnel for
service.
Safe installation
Ambient temperature should not be higher than 45°C.
Do not place the equipment near heat sources or in a highly humid environment.
Do not place the equipment in a place where it can suffer vibrations or shocks.
Please allow air circulation around the equipment.
Do not place naked flames, such as lighted candles on or near the product.
Simbology
Equipment designed for indoor use.
The equipment meets the safety requirements specified for Class II equipment.
The equipment meets the CE marking requirements.
The product is EAC certified.
Inputs/Outputs/Connections description
The unit (
Fig.1
) is provided with:
1.
IF satellite input (
PORT 1
)
2.
IF satellite output (
PORT 2
)
3.
RF input + 6
CH QAM (
RF QAM 1
)
4.
RF 6
CH QAM (
RF QAM 2
)
5.
Power supply BUS connectors
6.
Control BUS connectors
7.
Ethernet upgrade connector
8.
Programmer / PC connector
9.
Status LED
10.
Ethernet 1000 status LED
11.
Ethernet 10/100 status LED
12.
Satellite input status LED
13.
QAM output status LED
Introduction
The DVBS2-QAM Hexa transmodulates the services coming form six satellite
input transponders into six DVB-C channels that can be freely placed in the 46-
862 MHz frequency range (channels C02 - C69 in the CCIR channel table).
The digital transmodulation process starts with the input satellite transponder
demodulation. The Transport Streams are obtained and subsequently
modulated in QAM format. Each output QAM channel is individually placed in
the selected ouput frequency.
Input and output loops can be selected. Input loop provides the satellite signal
to another module when it is enabled, otherwise two independent inputs can
be used.
The output loop in the QAM output allows the mixing of the output signal
between modules in the same subrack, or (when it is disabled) to have a single
QAM output providing a higher output level.
Technical specifications
Satellite
demodulator
Input frequency
950 - 2150 MHz
Modulation
DVB-S2 (QPSK, 8PSK)
DVB-S (QPSK)
Input loop
ON/OFF
Through losses
< 2.5 dB (typ.)
Input level
60 a 115 dBµV (-49 a -25 dBm)
Symbol Rate
2 - 45 Mbaud (DVB-S)
2 - 33 Mbaud (DVB-S2)
Frequency steps
1 MHz
FEC inner code
LDPC (9/10, 8/9, 5/6, 4/5, 3/4, 2/3, 3/5, 1/2)
IN/OUT connectors
“F” Female
FEC outer code
BCH (Bose-Chaudhuri-Hocquenghem)
Input impedance
75 Ohm
Roll-off factor
20%, 25%, 35%
LNB power
13V/17V/ OFF 22kHz (ON/OFF)
R.O.E. inner (min)
6 dB (typ.)
S
atellite selection (DiSEqC)
A, B, C o D
QAM
Modulator
Modulation format
16, 32, 64, 128, 256 QAM
Scrambling
DVB ET300429
Symbol rate
1.5 - 7.2 Mbaud max
Interleaving
DVB ET300429
Roll-off factor
15%
Bandwich
8.28 MHz max (7.2 Mbaud)
Block code
Reed Solomon (188, 204)
Out spectrum
Normal / Inverted (Selec.)
UP-Converter
Output frequency
46- 862 MHz (Selec.)
Step losses
< 2.5 dB (typ.)
Frequency steps
250 kHz
Return losses
> 10 dB (typ.)
Output loop
ON/OFF
Input / Output Connectors
“F” Female
Phase noise
90 dBc/Hz @10kHz (typ.)
Output impedance
75 Ohm
Output level
With Loop: (100 ± 5) dBuV
Without Loop: (87 ± 5) dBuV
Spurious level
55 dBc min. > 60 dB (typ.)
Output level (selectable)
> 15 dB
General
Consuptions
(with signal)*
24V : 950mA (without LNB)
24V : +250mA max (1LNB active)
24V : +500mA max (both LNBs actives)
Protection index
IP20
*
It is estimated a power consumption of 300 mA from the LNB.
The technical characteristics described are defined for a maximum ambient temperature of 45 ° C (113 ° F). For higher temperatures forced ventilation will be used.
