Wise TSW200E1 - Performing the FREQUENCY;LEVEL Test; The ROUND-TRIP DELAY Mode

TSW200E1
• Level Value: Selects the level, from -55 to +3 dBm0, of the sinusoidal signal to be
transmitted. To edit, press DATA. The ← or → keys move the cursor to the bit to
change. Use the alphanumeric keyboard to change the bits. When done, press <F4>
(ENTER) to confirm editing or <F1> (EXIT) to cancel editing.
• Tx Source: Selects the source of the data transmitted by the equipment. These data can
be the tone generated internally by the equipment (TONE), whose parameters are the
frequency and the level above described. The source can also be the audio signal input
by the microphone (MIC).
• Loopback: Allows the equipment to be configured to perform a local loopback test
(LOCAL) or no loop at all (NONE). For the local loopback, the same data transmitted
by the equipment are internally sent to its reception. So, the equipment can be in sync
when the test is started, without receiving external data.
5.8.2 - Performing the FREQUENCY/LEVEL Test
After connecting and setting up the Test Set correctly, the test can be started. To do this,
press the START/STOP key. The following screen will be displayed:
This screen displays the results of the level and frequency of the received signal and it also
informs the level and frequency which were set up at the transmission.
The values displayed in front of the labels Peak+ and Peak- represent the greatest absolute
values received within the A-law coding employed by the equipment.
It is possible to change the frequency and level values of the transmitted sinusoidal signal
without stopping the test. To do this, use the ←, ↑, →, ↓ and DATA keys. Use the <F4> (AUDIO
ON/OFF) key to turn the audio on or off. The audio data are the data received and decoded by the
equipment.
<F1>(SLOT↓) and <F4>(SLOT↑) change the slot to transmit and to receive.
5.9 - The ROUND-TRIP DELAY Mode
The delay measurements are derived from the time elapsed between transmission and
reception of a selected pattern where a marker has been inserted. So, the test can be performed only
for looped-back circuits. The test can be performed either for framed or unframed circuits.
Wise Telecommunications Industry 58
TRANSMITTER
Frequency: 2100Hz
Level: +03 dBm0
RECEIVER
Frequency: 2100 Hz
Level: +03.0 dBm0
Peak+: 128
Peak -: 128
Selected Time Slot: 01
SLOTDN SLOTUP AUDIO ON
F1 F2 F3 F4