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Cisco uBR924 Router Hardware Installation Guide
OL-0338-01 (3/2000)
Chapter 1
Product Overview
Features
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.
Note
LEDs that are not labeled are not in use.
Figure 1-7
Cisco uBR924 Cable Access Router Front Panel LEDs
Table 1-1
Cisco uBR924 Cable Access Router Front Panel LED Description
Label
Description
Color
Function
OK
System Status
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).
ACT
Cable Activity
Green
On = Cable Activity
Off = No Activity
1–4
Ethernet
1–Ethernet 4
Green
On = Link Up
Blink = Activity
Off = Link Down
MSG
Message
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).
V OK
Voice System
Status
Green
On = VoIP system is operational
Off = VoIP problem; the voice devices may have switched over to the backup
POTS line
V1
Voice Port 1
Green
On = Call in progress
Off = No call
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Cisco uBR900
SERIES
OK
ACT
LINK
V OK
V1
V2
1
2
3
4
MSG
DS
US
DSNR
CATV
