Comtech EF Data SDM-2020, Installation And Operation Manual

Page: 182 / 215

SDM-2020 Satellite Demodulator Remote Control Operation
Rev. 3 B–7
LNB Voltage
Select Command:
Response:
Status:
Response:
<add/LNBV_xx'cr'
>add/LNBV_xx'cr''lf']
<add/LNBV_'cr'
>add/LNBV_xx'cr''lf']
The commands LNBV_ is only applicable with the
installation of a 4-channel RF DEMOD.
X = 1, 2, 3, or 4
B.4 Interface Status Commands/Responses
Receive
Clock Phase Command:
Response:
Status:
Response:
<add/RCP_xxx'cr'
>add/RCP_xxx'cr''lf']
<add/RCP_'cr'
>add/RCP_xxx'cr''lf']
Where: xxx = NRM (normal clock phasing) or INV (inverted
clock phasing).
Note: Not available with G.703 interface.
Receive Data
Phase Command:
Response:
Status:
Response:
<add/RDP_xxx'cr'
>add/RDP_xxx'cr''lf']
<add/RDP_'cr'
>add/RDP_xxx'cr''lf']
Where: xxx = NRM (normal data phasing) or INV (inverted data
phasing).
Receive Data
Fault Command:
Response:
Status:
Response:
<add/RDF_xxxx'cr'
>add/RDF_xxxx'cr''lf']
<add/RDF_'cr'
>add/RDF_xxxx'cr''lf']
Where: xxxx = NONE, DATA, or AIS.
DVB Framing
Type Command:
Response:
Status:
Response:
<add/RDVB_xxxx'cr'
>add/RDVB_xxxx'cr’'lf']
<add/RDVB_'cr'
>add/RDVB_xxxx'cr’'lf']
Where: xxxx = 188, 204, or NONE.
Interface
Identification Status
Response: <add/INID_'cr'
>add/INID_xxxxxxxxx'cr’'lf'] Where: xxxxxxxxx = RS422, LVDS, ECL_RX, ASI/RS422,
ASI/LVDS, G.703, SMPTE 310M, None, or Unknown.
Interface
Mode Config. Command:
Response:
Status:
Response:
<add/ICLK_xxx'cr'
>add/ICLK_xxx'cr’'lf']
<add/ICLK_'cr'
>add/ICLK_xxx'cr'’lf']
Where: xxx =SER (Serial mode, CLK = Data rate) or PAR
(Parallel mode CLK = Data rate/8).
Note: The ICLK_ command is not available when using the
ASI/RS422 interface.
Interface
Read Error
Select (RX
2047 Pattern) Command:
Response:
Status:
Response:
<add/IRE_xxx'cr'
>add/IRE_xxx'cr’'lf']
<add/IRE_'cr'
>add/IRE_xxx'cr’'lf']
Where: xxx = ON or OFF.