- Unpacking the Router
- Site Preparation and Installation Safety (Read before Installing)
- Hardware Features - Description and Specifications
- Mounting and Grounding the Router
- Making Power Connections
- Making Network and Other Connections
- Installing Connected Grid Modules
- Antennas
- About the SD Flash Memory Module
- LED Locations and States
- Appendix - Starting a Router Terminal or Console Session
- Appendix - Cable and Connector Specifications
Router LED Locations and States
View the Cisco 1120 Connected Grid Router LEDs to determine the overall state of the system and to verify the status of specific connections, ports, and system components.
In addition to viewing the LEDs on the router hardware, you can use the router command line interface as described in Related Commands to check the system status LED state from remote locations.
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CONSOLE LED—Console Port Status
■Ethernet LEDs—Network Links Status
Rear Panel LED Locations
Most of the router LEDs are located on the router cable panel (rear panel) as shown in Figure 1.
The SD card status LED is located on the router module panel (front panel). For more information, see SD Card LED Location.
Figure 1 Cable Panel (Rear Panel) LEDs
Power Supply LED
The power status LED indicates the power status of the router.
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SYS LED—System Status
The system status (SYS) LED indicates the system or operating status of the router.
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The system is starting up or power cycling, and loading system software, including BIOS and operating system |
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ACT LED—System Activity
The system activity (ACT) LED indicates the state of the router CPU.
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The router CPU is not operating, or is not operating normally. |
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WIFI LED—WiFi Link Status
The WiFi link status (WIFI) LED indicates the state of the router WiFi short-range access point link.
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GPS LED—GPS Link Status
The GPS link status (GPS) LED indicates the state of the link between the router and the GPS satellite.
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CONSOLE LED—Console Port Status
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ALM LEDS—Alarm Port Status
The router has five alarm port LEDs.
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Ethernet LEDs—Network Links Status
This section describes the router LEDs that indicate Ethernet network connection states and speeds, and includes these topics:
■GE LEDs—Gigabit Ethernet Port States
■FE LEDs—Fast Ethernet Port States
SFP LEDs—SFP Port States
The router has two SFP ports (labeled ETH 2/1 and ETH 2/2). Each SFP port has the following two LEDs:
■ SPD —Indicates SFP port link speed
■ EN —Indicates SFP port status
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GE LEDs—Gigabit Ethernet Port States
The router has two GE ports (labeled ETH 2/1 and ETH 2/2). Each GE port has a corresponding LED that indicates the GE link speed for the port.
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FE LEDs—Fast Ethernet Port States
The router has six FE ports (labeled ETH 2/3 through ETH 2/8). Each FE port has a corresponding LED that indicates the FE link speed for the port.
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SD Card LED Location
The SD card LED (Item 1 in Figure 2) is located on the router module panel (front panel) and indicates the state of the router SD card.
SD LED—SD Card Status
SD flash card installed and operating normally Note: If the SD Card is removed, the SD flash memory module LED remains green solid until the router is rebooted. |
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Related Commands
show led
To view the status of the router SYS LED, use the show led command in privileged EXEC mode. The SYS LED is located on the router exterior (see Figure 1),
During normal operation, the router can be installed in a substation, utility box, or other hard-to-access location, and you might not be able to view SYS LED. In this case, you can view the status of the LED from a remote location using the show LED command.
The values displayed in the System LED field are described in SYS LED—System Status.
This example shows the command output:
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