Advantech SBD75e Series, Инструкция по установке и эксплуатации

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Web GUI Monitoring & Control
4.9.5.3 Output Mode
The output Mode drop-down box has two settings which are described in the following
paragraphs.
4.9.5.3.1
Normal Mode
In normal mode, the data in the stream specified by the programmed ISI is presented at the
relevant ASI output. If the demodulator is operating in CCM mode, the output data will appear
at a constant rate. If the demodulator is operating in ACM/VCM mode, the output data will
appear at a constant rate as long as the modulator inserted Input Stream Synchronisation (ISSY)
time-stamps.
4.9.5.3.2
Transport Mode
In transport mode, the raw base-band data stream, including base-band headers, is output for
subsequent external processing. Each base-band frame is preceded by a synchronisation byte,
MODCOD/TYPE, receiver SNR and physical layer (PL) frame ID. This mode is only valid in DVB-S2.
4.9.5.4 Stats Integration Time
The Errored Second Rate (ESR), Severely Errored Second Rate (SESR) and the Background Block
Error Rate (BBER) are all computed based on the Stats Integration time which may be set
independently for each output interface. The integration period defaults to 60 seconds.
4.9.5.5 Modulation and Coding
This control parameter is only displayed if the user has engaged automatic stream isolation (see
paragraph 4.8.2.1). In this case the output panel is displayed similarly to that shown in Figure 4.41.
Figure 4.41: Modulation and Coding Control
The default setting for this parameter is ‘ANY’. This means that base-band data frames destined
for this output could originate on any MODCOD. If any one or more of the enabled output
interfaces is set to ‘ANY’, then stream isolation filtering is not possible, and a warning message at
the bottom of the window (as shown in Figure 4.41) is displayed.
Alternatively, the user may configure the output interface to accept all base-band data frames
received on a specific MODCOD. In the example shown in Figure 4.42, interface ‘Output 0’ has
been configured so that it is associated with the MODCOD for 16APSK rate 2/3. All frames
received on this MODCOD will pass to ‘Output 0’ for processing.
Figure 4.42: Configuring Output Interface to Accept All Base-band Data Frames
SBD75e Series Demodulator Installation and Operation Manual
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