MU-M4SOL
User’s Manual
Page 42 of 130
4.2.4.6
DCR - DC Resistance Testing
Using the
MU-M4SOL
DCR
and
Looper
modules, you can test the DC resistance of CATx cables, and
check their ability to provide a sufficient level of PoH (Power over HDBaseT) powering.
The DC Resistance module is inserted into the lower slot in the
MU-M4SOL
main unit, while the
CATx cable is connected to the DC Resistance module at one end, and to the Looper module at the
other end, as depicted in the figure below:
Figure 49: DC Resistance Test Setup
➔
To test the DC resistance of a CATx cable:
1.
Attach the cable to the DC Resistance and Looper modules as shown in the figure above.
2.
From the Tools page, tap on the
DCR
button. The DCR page appears, together with three
buttons:
◼
Loop Resistance
◼
Parallel DC Resistance Unbalanced
◼
Pair to Pair Resistance Unbalanced
3.
Tap on the
Loop Resistance
button to display Loop Resistance data, as shown in the figure
below. Loop resistance represents the DC resistance (in ohms) of a single twisted pair in a
cable and is calculated as the sum of the DC resistance of the two conductors of the
twisted pair.
Resistance of
under 20 ohms
indicates that the pair should be capable of delivering the
minimum of 80% of the power to the remote side.
Summary of Contents for MU-M4SOL
Page 1: ...Test Device Model MU M4SOL User s Manual Revision A16 ...
Page 39: ...MU M4SOL User s Manual Page 39 of 130 Figure 45 Log Report ...
Page 68: ...MU M4SOL User s Manual Page 68 of 130 Figure 83 Information Menu ...
Page 108: ...MU M4SOL User s Manual Page 108 of 130 Figure 134 IP Module report ...
