Comtech EF Data SDM-2020 - Manual (Page 85)

SDM-2020 Satellite Modulator Revision 7
Front Panel Operation MN/SDM2020M.IOM
5-43
REMOTE TYPE
RS-485 (4-WIRE)
Use this display to select a remote interface type.
Choices include: RS-485 (4-wire)
RS-485 (2-wire)
RS-232
1 Press [ ↑] or [↓] to select an item.
2 Press to execute the change.
YEAR DISPLAY
2 – DIGIT
Use this menu to set the year display to 2 or 4 digits.
1 Press [ ↑] or [↓] to select an item.
2 Press to execute the change.
TEST MODE STATUS
– +– – – – –
The following modulator test points are listed in this Test Mode Status window, and will
display a “+” when a test mode is active:
• RF OUTPUT • CARRIER MODE
• MOD FAULTS • INTF FAULTS
• 2047 PATTERN • IMPULSE TEST
• INTERFACE LOOPBACK
To view the test modes,
1 Press .
2 Press [ ←] or [→] to move through the list of test modes.