Chapter
6 Monitoring and Diagnostics
Installation and Operation Manual
6-84
Recovering ACE Units
ACE-3105, ACE-3205 Ver. 5.2
•
Go to Monitoring>System>Clock>Recovered clock>Statistics.
RX Packets ... (35266)
Lost Packets ... (0)
Out Of Order Packets ... (0)
Buffer Underflow ... (0)
The ACR PW runs in 100 pps rate. Make sure that the Rx counter is indeed
increasing at that rate. If PW packets are not received, you have to check the
remote distribution unit status (part 2).
The lost packets ratio should be below 0.01%.
If lost or mis-ordered packets or buffer underflows are increasing, continue the
testing using the packet loss (RAT Entry#6) or underflow procedures (RAT Entry
#9).
1.
Go to Monitoring>System>Clock>Current clock.
2.
Check whether the current clock source is set to Recovered.
Active Clock > (Master)
Source > (Recovered)
Recovered ID ... (1)
³
If the clock source is not set to Recovered:
1.
Go to Configuration>System>Clock>Master clock.
2.
Ensure that the Master clock is set to Recovered.
1. Source > (Recovered)
2. Revertive > (Yes)
3. Wait To Restore (sec)[1 - 720] ... (1)
4. Recovered ID[1 - 1] ... (1)
3.
Go to Configuration>System>Clock>Recovered clock.
4.
Ensure that the ACR is associated with the Adaptive Clock PW.
1. Recovered ID[1 - 1] ... (1)
2. Activity > (Enable)
3. Type > (Adaptive)
4. PW number[1 - 66] ... (1)
5. Source quality > (Stratum 1)
6. Network type > (Type A)
If the parameters above are correctly set, try restarting the ACR mechanism as
explained below.
³
To restart the ACR mechanism:
1.
Go to Configuration>System>Clock>Master clock.
2.
Change the Master clock source from Recovered to Rx Clock.
