
Technical Specification
Parameter Specification
Tuning Step size 125 kHz
Second order Intercept Point +15 dBm minimum (referenced to the input)
Third order Intercept Point
+10 dBm minimum (referenced to the input) for an input
signal level of –25 dBm
FEC
RS (188,204), Viterbi – Rates:
1/2, 2/3, 3/4, 5/6, 7/8
LNB power feed
Off, 13.5 V DC, 18 V DC output through the RF input
connector
LNB power feed current supply max 350 mA
LNB power supply tolerance
±5%
LNB power feed short prot Automatic recovery when fault is removed.
LNB 22 kHz ON / OFF
LNB 22 kHz freq. tolerance
±2 kHz
LNB 22 kHz duty cycle
50 ±10%
LNB 22 kHz amplitude @0-350
mA load
650 mV ±250 mV
LNB 22 kHz rise/fall time
10/90%
10 ±5μs
Spectral inversion Normal / Inverted
B.7.2 ASI Input Option (TT1222/HWO/ASI/IN)
The ASI interface is implemented in accordance with CENELEC EN 50083-9: ref
[15], in particular Annex B and E.
Table B.17: ASI Input
Parameter Specification
Safety status SELV
Input connector
1 x BNC, female 75 Ω
Sustained transport stream data rate 50 Mbps
Cable length Better than 100m Belden 8281
Byte mode Supported
Single packet burst mode Supported
Return loss (5 MHz to 270 MHz) Better than 15 dB
EN/LZT 790 0002/2 R1A
B-12
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