Dataradio Paragon, Техническое руководство

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120 20170-204a Paragon
PD
Technical Manual 13
3.2.1.1.2.1 Clearing Errors
Major and minor error LED indications remain
lit on the front panel until:
•
The unit is RESET
•
The unit is powered OFF and ON again
•
PF 1 is pressed
The PF 1 switch can be pressed at any time to
clear an error display without affecting normal
operations.
3.2.1.1.2.2 Test Transmissions
To select a pattern and begin transmission, start
by pressing and holding PF1. It beeps once, all
five RS232 LEDs light; listen for a second beep
followed by a third beep. After two seconds, the
unit beeps and goes in “TX Select” mode with
only the three rightmost RS-232 LEDs now used
as selection indicators. Only release PF1 after
the third beep.
Following release:
•
Start of selection must be made within two
seconds. If not, the unit will default to pat-
tern one and start test transmitting.
•
PF1 may be pressed more than once. The
number of times it is pressed determines the
type of pattern that will be transmitted ac-
cording to Table 3.
•
Each pressing of PF1 extends the two-
second timer.
•
The three rightmost RS-232 LEDs display
are used to indicate TX mode selection as
shown in Table 2.
Table 2 - TX mode selection LEDs indications
Binary TX mode LED indications
TX pattern
selected
FT LED RD LED TD LED
1 Off Off On
2 Off On Off
3 Off On On
4 On Off Off
5 On Off On
6 On On Off
7 On On On
Once the type of transmission is selected, stop
pressing PF1, allow the two-seconds timer to
run down. Automatically, the BDLC
PD
turns its
transmitter ON, sends the selected “test pattern”
for 55 seconds and turns its transmitter OFF.
The TX LED in the RF group of indicators
lights in red while test transmitting. Pressing
PF1 while the 55 seconds test is in progress
stops the test.
At the end of test transmission, BDLC
PD
opera-
tion returns to normal and the RX LED lights in
green (monitoring normal transmitter activity).
Table 3 - Test Transmissions
DGFSK Paragon
PD # times
PF1 is
pressed
9600 b/s 16000 b/s 19200 b/s
1 2400 Hz Dotting 4000 Hz Dotting 4800 Hz Dotting
2 4800 Hz 8000 Hz 9600 Hz
3
100 Hz Square
wave
100 Hz Square
wave
100 Hz Square
wave
4 Random data Random data Random data
5 Unmod Unmod Unmod
6
1000 Hz sine
beacon mode
1000 Hz sine
beacon mode
1000 Hz sine
beacon mode
7
1000 Hz sine wave
Adjustment tone
1000 Hz sine
wave
Adjustment tone
1000 Hz sine
wave
Adjustment tone
SRRC4FSKPARAGON
PD
# times
PF1 is
pressed
32000
b/s
25600
b/s
19200
b/s
16000
b/s
14400
b/s
1
4000 Hz
Dotting*
3200 Hz
Dotting*
2400 Hz
Dotting*
2000 Hz
Dotting*
1800 Hz
Dotting*
2
Do not
use
Do not
use
Do not
use
Do not
use
Do not
use
3
100 Hz
Square
wave
100 Hz
Square
wave
100 Hz
Square
wave
100 Hz
Square
wave
100 Hz
Square
wave
4
Random
data
Random
data
Random
data
Random
data
Random
data
5 Unmod Unmod Unmod Unmod Unmod
6
1000 Hz
sine
beacon
mode
1000 Hz
sine
beacon
mode
1000 Hz
sine
beacon
mode
1000 Hz
sine
beacon
mode
1000 Hz
sine
beacon
mode
7
1000 Hz
sine
wave
Adj. tone
1000 Hz
sine
wave
Adj. tone
1000 Hz
sine
wave
Adj, tone
1000 Hz
sine
wave
Adj, tone
1000 Hz
sine
wave
Adj, tone
*
Dotting with reduced amplitude
Notes:
- For DGFSK models, a dotting pattern consists of an
alternating series of bits.
For the SRRC4FSK models, only the lowest-level
symbol’s modulation is used.
- The square wave is used to check transmitter low
frequency balance.
- The 1000 Hz sine can be used for transmitter distor-
tion measurements.
-
Pattern 6 produces a transmission of approximately
55 seconds followed by about 55 seconds of silence.
Initial transmission in a sequence may be shorter than
55 seconds. TX LED stays steadily red for duration of
the test. Press PF1 to terminate beacon mode.