Cisco DNCS System Release 2.8 3.8 4.3 Installation Guide

 

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4031324 Rev B 

5  Check the delay time on the DHCT diagnostic screen by choosing one of the 

following options: 



 

For sites using the SA Resident Application (SARA), look at the RF Statistical 
Information diagnostic screen, and choose one of the following options:  
–  If the delay value is less than 761, the delay time is correct. Go to step 6. 
–  If the delay value is more than 761, the DHCT is "too close." Repeat step 2 

and lower the modulator-to-node distance. Then, reboot the QPSK 
modulator. 



 

For sites using the Pioneer resident application, call Pioneer for assistance in 
determining the current time delay. 

6  Place a DHCT in the location with the maximum possible cable distance from the 

QPSK.  

Again, check the delay time in the DHCT diagnostic screen by choosing one of 
the following options: 



 

For sites using the SA Resident Application (SARA), choose one of the 
following options from the RF Statistical Information diagnostic screen: 
–  If the delay values fall within the 134 and 761 microsecond delay-time 

bound, the programmed delay values are correct. 

–  If the delay value is less than 134 microseconds, the overall delay 

between DHCTs is "too far." Call Cisco Services for assistance. 



 

For sites using the Pioneer resident application, call Pioneer for assistance in 
determining the current time delay.