RS-485 Remote Control Protocol
Page 6-14
Reference Guide: SM6610, SM6615, SM6620 and SM6625 Satellite Modulators
ST.RE.E10152.2
Bit-rate
Returns the bit-rate in units of 1 bit/s calculated
from the current symbol rate
e.g. 0x093D1CC0 = 155 Mbit/s
8
Symbol
rate
Returns the current symbol rate in units of
1 symbol/s
e.g. 0x01C9C380 = 30 Msymbol/s
8
FEC rate
0x03 - 1/2
0x04 - 2/3
0x05 - 3/4
0x06 - 5/6
0x07 - 7/8
0x08 - 8/9
2
Modulation/coding mode
0x01 - DVB
2
Modulation format
0x00 - QPSK
0x01 - BPSK
0x02 - 8PSK
0x03 - 16QAM
2
Spectrum sense
0x00 - Normal
0x01 - Inverted
2
Spectrum roll-off factor (Alpha)
0x02 - 20%
0x03 - 25%
0x04 - 30%
0x05 - 35%
2
Modulation On/Off
0x00 - Off
0x01 - On
2
Reserved
Ignore
value
4
Reserved
Ignore value
2
IF
Power
IF power in 0.1 dB steps
Value as 16-bit signed integer
e.g. 0x000A = 1.0 dBm,
0xFFFF =
−
0.1 dBm
4
IF
Frequency
e.g. 0x011170 = 70 MHz
6
General
Control
Bit 0
1
2
0 - S/W reset
Normal
Enabled
1..7 - Reserved
Ignore value
Reserved
Ignore
value
4
Reserved
Ignore
value
2
Reserved
Ignore value
2
IF Carrier Control
0x01 - IF Carrier Off
0x02 - IF Carrier On
2
Rate Adaptation Control
0x00 - Off
0x01 - On
2
6.4.3
Upload Current Configuration
If an error occurred when the Modulator processed the outgoing message,
the following response will occur, otherwise the current configuration is
returned as with Upload Configuration. The start field for this message is
NAK.
