Ericsson TT1222 Guía de usuario Pagina 107

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Technical Specification
Parameter Specification
Max switching voltage
(AC/D.C.)
30 V / Not to exceed SELV limit of 60 V DC
Max switching power (AC/D.C.) 120 VA / 24 W
Surge voltage - contact coil 1.5 kV
Table B.15: General Purpose Output Pins
Parameter Specification
Output connector Female 9 pin D-sub
Electrical format 0 V, 5 V
Number of signals 5
Protection Open collector buffers and diode clamps.
B.7 Options
B.7.1 QPSK Input Option (TT1222/HWO/QPSK)
The satellite input interface shall be compliant with the DVB specification. The LNB
supply shall meet the requirements of IEC1319-1 (IEC61319-1) for European
satellite receiver interfaces. Any requirements specific to Japan and USA are not
included. Relevant requirements are summarized in Table B.16.
Table B.16: QPSK Demodulator
Parameter Specification
Safety status TNV-1
Input connector
F-type (Female), 75 Ω
Symbol Rate
DVB compliant 4 – 30 Msym/s and DVB capable
1 – 45 Msym/s.
Return Loss at i/p
>9.5 dB (VSWR < 2.0) for each input even if not
selected.
Modulation QPSK
Symbol rate set up Manual
Frequency range 950 to 2150 MHz
Input level -65 dBm to –25 dBm [40 dB dynamic range]
Frequency selection Digital PLL
EN/LZT 790 0002/2 R1A
B-11
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