Led Descriptions - Cisco uBR924 Installation Manual

Chapter 1 Product Overview

LED Descriptions

The Cisco uBR924 router contains 15 LEDs on the front panel that provide information about the
router's status and network connections. Figure 1-7 illustrates the LEDs on the router's front panel.
Table 1-1 lists each LED and its meaning.
LEDs that are not labeled are not in use.
Note
Figure 1-7
Table 1-1 Cisco uBR924 Cable Access Router Front Panel LED Description
Label Description
OK System Status
ACT Cable Activity
1–4 Ethernet
1–Ethernet 4
MSG Message
V OK Voice System
Status
V1 Voice Port 1
OL-0338-01 (3/2000)
Cisco uBR924 Cable Access Router Front Panel LEDs
OK ACT
CATV LINK V OK
Color Function
Green On = Cisco uBR924 power-on and self-test diagnostics have completed
successfully, the system image has been booted, and the system is operational.
Blink = After power-on and self-test diagnostics have completed successfully,
LED blinks as the system image is booted.
Off = No Power. If the OK LED turns off and remains off during the boot process,
it indicates the router has failed its self-test diagnostics; in this situation the
bottom row of LEDs contain more information about the type of failure (see
Table 4-1 on page 4-3).
Green On = Cable Activity
Off = No Activity
Green On = Link Up
Blink = Activity
Off = Link Down
Green Reserved for service provider use (typically indicates that messages are waiting
in the subscriber's voicemail, but the exact usage depends on the service
provider).
Green On = VoIP system is operational
Off = VoIP problem; the voice devices may have switched over to the backup
POTS line
Green On = Call in progress
Off = No call
1 2 3 4 MSG
V1 V2 DS US DSNR
Cisco uBR924 Router Hardware Installation Guide
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