Introduction
Getting Acquainted
DELTA Receiver
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• If the REC LED is red, the receiver has run out of memory, has a hardware problem, or
contains an improper OAF (see “Option Authorization File (OAF)” on page 22 for more
information on OAFs).
• The REC LED blinks green or orange each time data is written to the internal receiver's
memory.
• Each time you turn off or on data recording, either a new file opens or data appends to a
particular file. See “Always Append to the File parameter” on page 36 and “Files Creation
Mode parameter” on page 36 for information on setting this function.
• Pressing the FN button for more than five and less than eight seconds will turn the baud
rate of serial port A to 9600. After about five seconds of pressing the FN button, the REC
LED becomes red. Release the FN button while the REC LED is red (during the next three
seconds).
• Pressing the FN button for more than eight seconds has no impact.
After loading new firmware or clearing the receiver’s NVRAM, the receiver checks its internal
file system. During this operation, the REC LED flashes orange, and the file system is not
accessible for CDU (control display unit) applications or for data recording. This operation may
require from fractions of a second to several minutes, depending on the circumstances and the
amount of internal memory.
Data and Power Ports
The DELTA receiver can be equipped according users needs and have different ports on the front
panel. Below are presented some examples of possible configurations (Figure 1-3):
Figure 1-3. DELTA Ports
• Power – used to connect the receiver to an external power source. This port can also be
used to charge the batteries. The body of the connector on the corresponding cable is red.
• Serial – used for communication between the receiver and an external device. The body of
the connector on the corresponding cable is green.
USB Serial
Ethernet
PWR
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