TANDBERG SM6610, Справочное руководство

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Introduction
Reference Guide: SM6610, SM6615, SM6620 and SM6625 Satellite Modulators Page 1-9
ST.RE.E10152.2
1.6 Additional Features for Greater Flexibility
1.6.1 Spectrum Sense
The Modulator output spectrum can be reversed if required. This gives
greater flexibility when converting the signal to RF (Ku-band or C-band),
since the choice of local oscillator frequency for the conversion can itself
either lead to a normal or reversed spectrum.
1.6.2 Control and Monitoring
Local Control
Control and monitoring may be performed locally via a VT100 terminal or
a PC running appropriate software using the RS-232/485 port.
Remote Control
In addition to the RS-232/485 port, remote control is possible using either
one of the Ethernet ports. The user may also control the Modulator via
Telnet (see Chapter 3, Operating the Equipment Locally).
User Selectable Functions
The control and monitoring functions that may be performed by both types
of terminal are similar. The user may set, amongst others:
•
Transport stream input source, PRBS or Null Packets selection
•
Bit-rate or symbol rate
•
Rate adaptation on/off
•
Modulation format: BPSK, QPSK, 8PSK (option), 16QAM (option)
•
FEC code rate
•
IF frequency or uplink frequency
•
IF power
•
IF Output on/off
•
Modulation on/off
•
Spectrum sense
•
Health/status monitoring
•
Self-tests