Accessing the Router in Freezing Temperature
The IP65-compliant ASR 901S Aggregation Service Router is designed to function in freezing temperatures.
Before you service a router that is covered in ice, go through the
Safety Guidelines, on page 15
.
Materials Required
•
Non-metallic ice scraper
•
Small broom brush or squeegee
Procedure
Step 1
Use the non-metallic ice scraper to gently scrape the ice off the router. Use the edge of the ice scraper to
remove the ice from the bolt holes.
Take necessary precautions to ensure that the router is not damaged when clearing the
ice.
Note
Step 2
Use the small broom brush or the squeegee to clear the loose ice from the router.
Step 3
Ensure that the router is completely free of ice before opening it. To open the router, see
Cover, on page 48
.
Ensure that no water or ice seeps into the chassis when the router is opened.
Note
Powering on the Router
Do not touch the power supply when the power cord is connected. For systems with a power switch, line
voltages are present within the power supply even when the power switch is off and the power cord is
connected. For systems without a power switch, line voltages are present within the power supply when
the power cord is connected. Statement 4
Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal
use. Statement 39
Warning
Checklist for Power on
•
Securely mount the router.
•
Properly connect the power, network, and interface cables.
Interpreting Bottom-Panel LEDs
The Cisco ASR 901S Aggregation Services Router provides three LEDs on the bottom panel to monitor
conditions and to aid in troubleshooting problems. For a description of the LEDs, see
page 78
.
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
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Installing the Router
Accessing the Router in Freezing Temperature