Comtech EF Data SDM-2020 - Manual (Page 208)

SDM-2020 Satellite Demodulator Revision 4
Remote Control Commands MN/SDM2020D.IOM
A–8
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
thru
25
EBNO Threshold Alarm
(ref. 'EBNA_' command).
Sweep Width Range
(ref. 'SWR_' command).
Sweep Reacquisition
(ref. 'SR_' command).
Note: Parameters 10 –14 require the
4-Channel RF (L-Band) card. Trying to
program any data in parameters 10 – 14 with
a 70/140 card will be treated as errors.
RF Input Select
(ref. 'RFIN_' command).
LNB Voltage Select
(ref. 'LNBV_' command).
LNB Power Monitor Low Current
Threshold
(ref. 'SPL_' command).
LNB Power Monitor High Current
Threshold
(ref. 'SPH_' command).
LNB Power
(ref. 'LNB_' command).
Receive Clock Phase
(ref. 'RCP_' command).
Receive Data Phase
(ref. 'RDP_' command).
Receive Data Fault Mode
(ref. 'RDF_' command).
DVB Framing Type
(ref. 'RDVB_' command).
Receive 2047 Pattern
(ref. 'IRE_' command).
Demodulator Type
ref. 'DTPE_' command).
Reserved
p7 = n, where ‘n’ is ‘0’ (Off) or ‘1’ (On)
p8 = nnnnnnn, sweep range in Hertz.
p9 = nnn, reacquisition time in seconds, where
nnn = 0 to 999
p10 = n, where 'n' is ‘1’, ‘2’, ‘3’, or ‘4’
p11 = nn, where 'nn' is ’13, ’18, or ‘24’ volts dc
p12 = nnnn, where nnnn = 0 to 1000 (mA in 1
mA steps)
Note: The low limit specified must be less than
the current upper limit.
p13 = nnnn, where nnnn = 0 to 1000 (mA in 1
mA steps)
Note: The high limit specified must be greater
than the current low limit.
P14 = n, where ‘n’ is ‘0’ (Off) or ‘1’ (On)
p15 = n, where n = '0' (NRM), or '1' (INV)
p16 = n, where 'n' is '0' (NRM), or ‘1’ (INV)
p17 = n, where ‘n’ is ‘0’ (none), ‘1’ (Data Stable),
or ‘2’ (AIS)
p18 = n, where ‘n’ = ‘1’ (188), ‘2’ (187 [NONE]),
or ‘3’ (204)
p19 = n, where ‘n’ = ‘0’ (Off) or ‘1’ (On)
p20 = n, where ‘n’ = ‘0’ (DVB) or ‘1’ (DBS)
Note: If Demodulator Type is s et to DBS mode,
the DVB framing type (p18) shall be set to 204
mode.
RS-422 Interface Note: This interface has a maximum data rate of
18 Mbps.