Cisco Headend System Release 2.7 Guía De Instalación

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Reset the Modulators 
4013154 Rev C 
79 
 
Resetting the Modulators Through the Modulator Panel 
When you reset the modulators, the modulators download their new code. Follow 
these instructions to reset the modulators through the modulator panel. 
1  Follow these instructions to record the Session Count, the Program Count, and 
the IP address of your modulators. 
Note:  Skip this step for any modulator that is used for video-on-demand (VOD). 
a  Press the Options button on the front panel until the Session Count total 
appears. 
b  Record the Session Count on a piece of paper. 
c  Press the Options button on the front panel until the Program Count total 
appears. 
d  Record the Program Count on a piece of paper. 
e  Press the Options button on the front panel until the IP address appears. 
f  Record the IP address on a piece of paper. 
g  Repeat steps a) through f) for all of your QAM and MQAM modulators. 
2  Choose one of the following options: 
 
To reset an MQAM, GQAM, or GoQAM modulator, go to step 3. 
 
To reset a QAM modulator, go to step 4. 
3  To reset an MQAM, GQAM, or GoQAM modulator, follow these instructions. 
a  Press the Options button on the front panel until the Reset option appears. 
b  Follow the instructions that appear alongside the Reset option. 
c  Go to step 5. 
4  To reset a QAM modulator, turn off the power switch on the back of the QAM 
modulator, wait a few seconds, and then turn it back on. 
5  Repeat steps 3 and 4 for up to three additional modulators, and then go to step 6. 
Important!  Never reset more than four modulators at once, or you may overload 
the DNCS. 
Note:  In step 7, you will have the opportunity to reset additional modulators. 
6  Wait a few minutes and then from an xterm window on the DNCS, type ping  
[IP address]  and press Enter to ping each modulator you just reset. The ping 
command displays a message similar to Device is alive when the modulator has 
been reset. 
Example:  ping  172.16.4.4 
 
Note:  It may take up to 5 minutes for each modulator to reset. 
7  Do you have additional modulators to reset? 
 
If yes, repeat steps 3 through 6 as many times as necessary until all of your 
modulators have been reset, and then go to step 8. 
 
If no, go to step 8.