Network Router User Manual

B-9
Cisco uBR924 Software Configuration Guide
OL-0337-05 (8/2002)
Appendix B Using the Cable Monitor Tool
Sample Pages
• Voice Port 2—If green, indicates that a call is active on voice port 2. If black, indicates that voice
port 2 is not in use.
• US—If green, indicates that the router has established connectivity with the CMTS and is operating
within 6 dB of the desired upstream power level. If black, indicates that the upstream power level is
not within the desired power level.
• DS—If green, indicates that the router is locked and communicating on a downstream channel.
• DSNR—If green, indicates that the router is receiving a quality downstream signal (this is a signal
that has a signal-to-noise ratio (SNR) that is 5 dB or more above the downstream lock threshold). If
black, indicates that noise on the downstream has exceeded the minimum recommended threshold,
and the signal is currently within 5 dB of failing due to excessive noise.
The Quick Status section of the home page summarizes the information that is displayed on the
Initialization Information page, described in the next section.