TSW200E1
symmetric pair for transmission and another for receiving data. The signals follow the ITU-T G.703
recommendation for 64 kbps co-directional interfaces.
The G.703 - 2 Mbps interface uses BNC connectors and it is used on the BERT/BLERT,
E1/G.704, MFC-R2, X.50 and FRAME RELAY modules.
The G.703 interfaces allow balanced and unbalanced impedances to be used, employing the
adequate cable.
2.6 - Audio
The TSW200E1 has a microphone in its front panel. In section 2.2 there is a picture of the
front panel where it is possible to see the identification MIC, showing the microphone location. The
microphone can be used for the MFC-R2 module and Frequency/level mode tests. It remains off for
the remaining modules.
There is also a loudspeaker located inside the equipment. For some modes, it is possible to
activate this loudspeaker to listen to the received data. For the MFC-R2 mode, this loudspeaker
remains on. It is possible to adjust the volume using the front panel keys, marked Volume+,
Volume-. For the Frequency/level, TX/RX and THROUGH modes, it is possible to turn the audio
on or off.
Wise Telecommunications Industry 13
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