23 Ethernet cable tests
340
ARGUS 152
Select e.g. ETH/TDR cable test.
Setting
Description
ETH TDR/cable tests:
Configuring the cable test parameters.
Propagation
speed
To determine the distance, the calculation must take into account a
correction value dependent on the wire type that specifies the ratio of
the pulse propagation speed in the cable to the speed of light in a
vacuum (c
0
= 299.792458 m/µs).
For many cable types, the pulse time is also specified in V/2.
Minimum: 45.0 m/
μ
s (VoP in %: 30)
Maximum: 149.7 m/
μ
s (VoP in %: 99.9)
Default:
98.9 m/
μ
s (VoP in %: 66.0)
The choice of propagation speed as VoP or V/2 is saved.
Line resistance Sets the line resistance per kilometer.
Range: 20
Ω
/km to 200
Ω
/km
Default:
80
Ω
/km
Capacitance
Sets the capacitance (operating (mutual) capacitance) per kilometer.
Range: 35 nF/km to 100 nF/km
Default:
39 nF/km
Name
Enter the name of the wire type.
Default:
PE 0.5 AWG24
ETH port flash
Interval that ARGUS keeps the port active before performing a link disconnect. The
disconnect time depends on the switch.
Range: 1 - 5 seconds
Default:
1 s