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5.3 CHANGING THE REMOTE INTERFACE FROM RS485/422 TO RS232 OR FROM RS232
TO RS485/422
On board each unit there is a menu of factory settings which are stored in non-volatile memory.
During normal operation these settings should never be accessed
.
It is extremely important that you record the contents of the Factory Configuration Mode
settings. These settings are as follows:
Low Frequency Limit
- Low limit of the LO frequency (See Section 1.1.3)
High Frequency Limit
- High limit of the LO frequency (See Section 1.1.3)
Frequency Step Size -
0.125000 MHz or 0.001000 MHz (N/A for this unit)
IF Frequency
– 0.000000 MHz
Frequency Display Format
- 2.3. This indicates the number of digits that will be
displayed to the left and to the right of the decimal point. 2.3 means two digits to
the left of the decimal point and three digits to the right. For example: if the LO
frequency of the unit is 10.750000 the display format is 2.3.
External Reference Configuration
- Auto-reference
Attenuation Max
- 30.0 dB for all units.
Attenuation Step Size
- 0.2 dB for all units.
Remote Bus
- The remote interface configuration for the unit.
Model
- The Model number of the unit.
Model Type -
Multi-band Block Downconverter
Model Code -
This is field is for future use
Mute Option -
Enable for upconverters, disable for downconverters
IF Option
- Changes the displayed IF frequency of the unit, not the operation
System Control
– Converter only
To access these settings perform the following steps:
•
Take the unit offline and power "Off" the unit using the rear panel power On/Off switch.
•
Power "On" the unit while holding the front panel CURSOR key until the words “Factory
Configuration Mode” appear on the front panel display temporarily.
•
Release the CURSOR key. The following display will soon appear
Use arrow keys to select model number or "ENT" key for manual entry.
NOTE: If the display is blank or unreadable, the LCD contrast may need to be adjusted.
Follow the LCD contrast adjustment procedure.
•
Press the "ENT" key and the Low and High Frequency Limits will soon appear on the
display.
•
Use the "MENU" key to scroll through the settings and record all of the current parameter
settings.
