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Recommended Practices for Cisco 1-, 2-, and 4-port Serial NIMs
LEDs
LED
EN
Port (CONN) LED
Recommended Practices for Cisco 1-, 2-, and 4-port Serial NIMs
This section describes recommended practices for safe and effective installation of the hardware
described in this document.
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Safety warnings included in this section apply to the Cisco 1-, 2-, and 4-port Serial NIMs that are used
on the Cisco 4400 Series ISRs.
Safety Recommendations
To prevent hazardous conditions, follow these safety recommendations while working with this
equipment:
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Installing the Cisco Multiprotocol Synchronus Serial NIM
4
Installing the Cisco 1-, 2-, and 4-Port Serial Network Interface Modules for Cisco 4400 Series ISRs
Color
Green or Amber
Green or Amber
Safety Recommendations, page 4
Preventing Electrostatic Discharge Damage, page 5
General Maintenance Guidelines, page 5
Safety Warnings, page 6
Keep tools away from walk areas where you or others could fall over them.
Do not wear loose clothing around the router. Fasten your tie or scarf and roll up your sleeves to
prevent clothing from being caught in the chassis.
Wear safety glasses when working under any conditions that might be hazardous to your eyes.
Description
Off: Default state when the module is powered on
for the first time.
Green: The module is powered on and is
functioning correctly
Amber: The module has some failure. You can
also set this state when the module is powered
down.
Off: No port is configured.
Green On: All ports are configured.
Blinking Green: At least one of the port is passing
traffic.
Amber On: At least on port is in loopback mode.
Blinking Amber: At least one port has failed to
configure.
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