Specifications
Installation and Operation Manual  Chapter 6 Diagnostics and Troubleshooting 
RICi-E3, RICi-T3 Ver. 1.0  Testing the Cables  6-9 
6.5  Testing the Cables 
You may check the quality of the copper cables, connectors and terminations by 
running a Virtual Cable Test (VCT). During the test RICi-E3, RICi-T3 transmits a 
signal of known amplitude (+1V) over each pair of an attached cable, testing the 
RX and TX pairs sequentially. The signal travels over the cable until it is reflected 
by a cable error. By measuring the magnitude of the reflection and the time it 
takes for the reflection to return, RICi-E3, RICi-T3 estimates an approximate 
distance to the location of physical damage or a short circuit. 
  To run the VCT: 
1.  From the Diagnostics menu, select VCT Test. 
The VCT Test menu appears as illustrated in 
Figure 6-8
. 
2.  In the VCT Test menu, press <F> to select the RICi-E3, RICi-T3 user port 
associated with the cable that you intend to test. 
3.  From the VCT Test menu, select Start Test to initiate the VCT on the selected 
port. 
The VCT results appear for the receive and transmit wires as listed below: 
  Tx/Rx Test Result: 
  Fail – The test failed, no results have been achieved 
  Normal – No cable errors have been detected 
  Open – Physical damage has been detected 
  Short – A short circuit has been detected. 
  Rx/Tx distance of reflection: Approximate distance to the location of 
physical damage or short circuit in meters. 
RICi-E3, RICi-T3 
Diagnostics>VCT Test 
 Port Label     (2) 
  Port           (User Port 1) 
  Tx Test Result      (Normal) 
  Tx Distance of Reflection)  (0) 
  Rx Test Result      (Normal) 
  Rx Distance of Reflection)  (0) 
1. Start Test 
> 
F - Forward 
ESC-prev.menu; !-main menu; &-exit; 1 user(s) 
Figure 6-8. VCT Test Menu 










