| Label | LED name | Color | Normal | Description/other conditions |
|---|---|---|---|---|
| 1 | Port status (1 through 28) | Green or amber | Off or green |
Off: no link or port is shut down. Green: link is present, no activity. Blinking green: activity, port is sending or receiving data. Alternating green and amber: link fault. Amber: port is blocked and is not forwarding data. Note: For further information, see Table 2.
|
| 2 | Express Setup button | Not applicable | Not applicable |
Use to start the express setup process, which is not described in this guide. |
| 3 | Display Mode switch | Not applicable | Not applicable | Press to cycle through display modes until LEDs labeled 4 through 8 are off. |
| 4-8 | Display mode indicators | Green, amber, or red | Green, amber, or red | Indicate the current display mode. See Table 2 for details. |
| 9 | Power status | Green or red | Off or green |
Off: power supply not installed. Green: valid input present and output operating within range. Red: valid input present, output is outside operating range or not present. Blinking red: power supply installed but valid input not present. |
| 10 | Alarm status 1–4 (input alarms) Output alarm |
Green or red | Green |
For 1-4 Green: alarm not present. Red: minor alarm present. Blinking red: major alarm present. Output Alarm Green: alarm not present. Red alarm condition present. |
| 11 | SD Card slot and cover | Not applicable | Not applicable | Not applicable |
| 12 | System | Green or red | Off or blinking green |
Off: powered off. Blinking green: booting in progress. Green: operating normally. Red: not functioning properly. |
| 13 | USB console port | Green | Off or green |
Green: port is active. Off: port is inactive. |
| 14 | SD card activity | Green or amber | Green |
Fast blinking amber: unsupported SD card is detected. Slow blinking amber: SD card is not present. Green: SD card is functioning. Blinking green: SD card transfer in progress. |
| Display mode LED | Display mode | Port status LED color and description |
|---|---|---|
| All off | Port status |
This mode is default. Off: no link or port is shut down. Green: link present, no activity. Blinking green: activity, port is sending or receiving data. Alternating green and amber: link fault. Amber: port is blocked and not forwarding data. If a port is configured for spanning tree, the port LED can be amber for up to 30 seconds while the network is tested for possible loops. |
| SPEED | Port speed |
10/100/1000/SFP ports Off: port is not operating. Amber: port is operating at 10 Mb/s. Green: port is operating at 100 Mb/s. Flashing green: port is operating at 1000 Mb/s. Uplink ports Green: port is operating at 1000 Mb/s. |
| DUPLX | Port duplex mode |
Off: port is not operating. Amber: port is operating in half duplex. Green: port is operating in full duplex. |
| REDUN | Redundancy status |
Green: one or more redundancy protocols are configured and active. Blinking amber: one or more redundancy protocols are indicating a redundancy fault. Flash blinking green: displays that ports are in a redundancy protocol and the redundancy fault status. |
| SYNC | Synchronous Ethernet status | Not supported |
| PoE | PoE port power |
Off: PoE is off. Green: PoE is on and all ports are functioning correctly. Alternating green and amber: PoE is on but one of the low priority ports power is disconnected or failed. Blinking amber: PoE is on but one of the high priority ports power is disconnected or failed. Amber: PoE is on with failures. |