Installation Guide

4002804 Rev C QPSK (Release A63) Software Upgrade and Installation Instructions 39
Activate Range Extension Feature (Optional), Continued
5.
Check the delay time on the DHCT diagnostic screen by choosing one of the
following options:
 For sites using 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.
7.
Again, check the delay time in the DHCT diagnostic screen by choosing one
of the following options:
 For sites using 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.