Wise TSW200E1, Manual

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TSW200E1
for that. To choose, use the ← or → keys.
•
Test Period : See section 4.1.
•
Histo Resolution : See section 4.1.
•
DTR/RTS : See section 4.1.
•
Data rate : Chooses the transmission rate, in the range of 50 to 115200 bps, using the ←
or → keys.
•
Bits Number : Selects the word size (5, 6, 7 or 8) for the asynchronous transmission ,
using the ← or → keys.
•
Parity : Selects the parity (NONE, EVEN, ODD, MARK or SPACE) for the
asynchronous transmission. To choose, use the ← or → keys.
•
Stop Bits : Selects the number of Stop bits (1, 1.5 or 2) for asynchronous transmission .
To choose, use the ← or → keys.
•
Alarm & Error Buzz : See section 4.1.
•
Loopback : See section 4.1.
4.3 - Executing the Bert/Blert Test
The figure below is an example of the connection modes to execute the BERT/BLERT (Bit
Error Rate Test/ Block Error Rate Test).
After making connections and after setting up the configuration parameters, press the
START/STOP key to start the test. If the CTS circuit is active, the Test Set will continuously
transmit the selected pattern. The RUN indicator LED will remain on while the test is running. If
the test is continuous, press START/STOP to stop the test.
To enable the data transmission, the CTS circuit must be activated by the modem under test.
The reception starts when the modem under test activates DCD. The test result is displayed.
For the asynchronous mode, “WAIT...” can appear on the screen. It is displayed while the
TSW200E1 tries to locate the start bit. The duration of this message depends on the selected
transmission rate: greater rates, less time. After some time, if the start bit is not found, the NO
SIGNAL message is displayed. Even then the TSW200E1 keeps trying, until the user presses STOP.
While the test runs without any occurrence of errors or alarms, the equipment displays the
OK screen (shown below). This screen shows that the test is running, the elapsed time and the RX
RATE. Next section comments about errors and alarm counters.
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