Cisco Model D9479 Gigabit QAM Modulator Installation Guide
Chapter 2 Upgrading the Software
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78-740242-01 Rev B
Download Software to the QAM Modulators
Introduction
To download the new software to QAMs, you must first reset (reboot) the
modulators using one of the following methods:
DNCS GUI
auditQam utility
Back panel of the QAM
CAUTION:
All active sessions on the QAM will be interrupted when the modulator is
All active sessions on the QAM will be interrupted when the modulator is
reset. DHCTs downstream of the modulator will lose their ability to display
services until sessions are reestablished.
Important! Use the procedure for
Preparing to Monitor Remote QAM Resets (on
page 22) when resetting QAMs from the DNCS GUI or when using an auditQam
script to reset multiple QAMs.
After the modulators reset, the software is downloaded from the DNCS to the
After the modulators reset, the software is downloaded from the DNCS to the
modulators and existing sessions are reestablished.
Choose a Reset Method
Choose one of the following methods to reset your QAMs:
To reset modulators through the DNCS GUI, go to Preparing to Monitor Remote
QAM Resets (on page 22).
To reset modulators using the auditQam utility, go to Preparing to Monitor
Remote QAM Resets (on page 22).
To reset modulators through the back panel, go to Physically Resetting the
QAM Modulator (on page 26).
Note: Resetting QAMs from the DNCS GUI or from the back panel can be time-
consuming. If you have a number of modulators to reset, consider using the
auditQam utility.
Preparing to Monitor Remote QAM Resets
1 From the xterm window, type cd /dvs/dncs/tmp and press Enter to access the
TMP directory.
2 Type ls -ltr boot* and press Enter. A list of files starting with "boot" appears in
the xterm window.