User's Manual

Screen Service SDT 200UB – SDT 500UB ARK-1 ATSC Operations
July, 2009 v 1.0 Page 3 - 78
Box
Parameter /
Control
Description Admitted Ranges / Values I/A
Opto&Relay Opto 0…3
Opto status indicators. Optos are normally opened:
• Opto 0: RF Off, manual switching off of output RF;
• Opto 1: Mode A/B switch;
• Opto 2: Retry of amplifier alarms (only in SDTX 200 version);
• Opto 3: Stand-by enabling; it puts the device on stand-by.
• Green: Closed (0)
• Grey: Opened (1)
I/A
Mode A / Mode B Channel Output channel.
• Min: 14
• Max: 77
I/A
Mode A / Mode B Power [dBm] Output power (expressed in dBm).
• SDTx 20/50
o Analog min: 23 dBm
I/A