TREND NETWORKS VDVII Manual De Usuario página 7

TONE GENERATION
VDV II can be used together with a compatible tone probe (available from TREND) to
identify and trace cables. VDV II can generate various types of tone on various
combinations of pins. Choice of tone type and pin connection is best determined by
experiment, to achieve the best results with a particular probe type and in a particular
cable situation.
To switch on the tone generation:
•
Press the TONE button.
o The currently selected tone type is generated on the currently
selected pins of the currently selected port.
o Tone generation continues until switched off or for a maximum of 144
minutes.
To change the port that the tone is applied to:
• Press the relevant Port Selection button.
o The tone is applied to the selected port using the tone type and pin
settings that were last used for that port.
To change the pins that the tone is applied to:
• Press the Port Selection button of the currently
selected port.
o The pins that the tone is applied to change each
time the button is pressed.
To change the tone type:
• Press the TONE button.
o The tone type changes each time the TONE
button is pressed.
The tone generation can be controlled from the far end of
the cable, to assist in confirming that the correct cable has
been traced.
To control the tone generation from the far end:
•
Briefly apply a short circuit between any two wires of
the cable.
o The sound of the tone changes.
To switch off the tone generation:
• Press and hold the TONE button.
o The tone generation stops and normal cable
testing is resumed.
• Release the TONE button.
ETHERNET DEVICE DETECTION
When the DATA port is selected, VDV II can detect the presence of an
Ethernet device connected to the DATA port
Shows the pattern of short circuits
created by the Ethernet
transformers of the connected
158800.02
switch port
VDV II
Shows the port
that the tone is
Shows tone
type
Shows pins that
tone is applied to
Shows that tone is
being generated
DATA Port selected
Shows Ethernet
device detected
6
En
applied to