Troubleshooting
Fiber-Optic Specifications
The specification for optical fiber transmission defines two types of fiber: single mode and multimode. Within
the single-mode category, three transmission types are defined: short reach, intermediate reach, and long
reach. Within the multimode category, only short reach is available. For information about optical SFP modules,
see the documentation for the SFP module at:
ps5455/prod_installation_guides_list.html.
LED Summary
The following sections describe the meanings of the LEDs on the Cisco ASR 902 Router:
RSP LEDs
ASR900-RSP LED
Table 30: ASR900-RSP LEDs
LED
Power (PWR)
Status (STAT)
Active (ACT)
Management port (MGMT)
http://www.cisco.com/en/US/partner/products/hw/modules/
Color/State
Off
Green
Off
Red
Yellow
Green
Off
Yellow
Green
Off
Green
Flashing green
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
Fiber-Optic Specifications
Description (two LEDs for each
port)
Disabled/no power to RSP
Power rails on RSP in range
Disabled/power down
Failure to boot (lit at reset)
Rommon booted
IOS booted and running
Not available
Standby (indicates standby RSP)
Active (indicates active RSP)
No connection
Connected with no activity
Connected with activity
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