IDEAL Networks SignalTEK NT, Manual

Page: 25 / 58

SignalTEK NT 156875 Iss 3
User Guide Page 25
Tests menu description – Ethernet mode
When a SignalTEK NT Remote Unit is directly connected but no active network is detected,
select the TESTS icon from the home screen (Fig 35) to view the tests available, Fig 36.
Fig 35
Fig 36
After any one of the three available tests is selected from the menu, the soft keys RUN and
SETUP will appear:
Wiremap and Autotest are described in Tests menu description – Cable mode . When
Wiremap is run in Ethernet mode, the only difference is that the cable to be tested is not
connected to an Active Remote but to either the Remote Unit or an active network port.
Cable performance
Fig 37
When a cable performance test is run, back-to-back frames are
transmitted to the Remote Unit which loops them back to the
Near-End Unit where they are checked and counted.
Fig 37 shows the result screen of a successful cable test. Frame
Size , which is fixed, is stated for information. Tx states the
number of frames transmitted, the associated green indicator
bar confirms that 100% of the frames were sent. As the frame
size (and fill) is fixed, the number of frames transmitted is
dependent on the duration of the test only. Rx states the
number of frames received, the green indicator bar confirms
that 100% of the transmitted frames were received. As all
transmitted frames were received, Error states 0 and its
associated indicator bar remains uncolored and shows 0%.
When there is a discrepancy between the number of transmitted
and received frames, Error states the number of errored frames
and the indicator bar is partly colored red proportional to the
number of errored frames. However, the cable will still pass the
test provided the Frame Threshold is not exceeded and the Line
Rate is as expected. (See Setup page 16).