Chapter 7 Device Configuring Using EMS
Physical Input Ports and Slots
© 2012 Harmonic Inc.
78
ProView 7000 v.2.6, Rev. E
■
Frame Size
6
– DVB-S2 only. Options:
❑
Normal frame (64,800 bits)
❑
Short frame (16,200 bits)
■
Pilot Symbols
– DVB-S2 only. Options:
❑
Automatic
❑
On
– the demodulator expects to find pilot symbols in the stream.
❑
Off
– the demodulator does not expect not to find pilot symbols.
NOTE:
Not finding pilot symbols when expected, or finding them when not expected, prevents
demodulator lock.
■
Physical Layer Scrambling Seed
– Enables the user to set the value for the scrambling seed.
DVB-S2 only. Range: 0 – 262,141.
■
Roll-Off Factor
– DVB-S2 only. Options:
❑
Automatic
❑
20%
❑
25%
❑
35%
■
Acquisition Mode
7
– Sets the frequency scanning span of the receiver when searching for
the satellite carrier frequency (lock acquisition search range). Options:
❑
Narrow
❑
Wide
NOTE:
Wide search is the normal operation mode of the receiver frequency acquisition scan.
Narrow Search mode should be used when symbol rate of the input is lower than 5 MBd.
■
Frequency Drift Compensation
– Compensate for LNB frequency drift, see
for board details. Options:
❑
On
❑
Off
■
BER Threshold
(DVB-S only) – Sets the threshold limit to raise the Bit Error Rate alarm.
Range: 0.00001 (0.1x10-4) – 0.1.
■
PER Threshold
(DVB-S2 only) – Sets the threshold limit to raise Packet Error Rate alarm.
Range: 0.00000001 (0.1x10-7) – 0.1.
■
Attenuation Level
– Internal attenuation for saturated signals (0 – 30 dB).
■
Gain
– Internal gain to improve signal strength.
■
ISI (Hex) (0-FF)
– Input Stream Identifier in hexadecimal. Use this parameter to select a
specific transport stream from a multi-transport carrier. If you have a quad port
demodulator card then you can select up to 4 transport streams from 4 single or a multi-
transport stream carrier.
6.
Only available with certain hardware configurations, see
7.
Only available with certain hardware configurations, see
