The following figures illustrate the X435 front panel LEDs:






The X435 front panel LEDs behave as follows:
| LED | Color/State | Port State | 
|---|---|---|
| Power | Solid Green | Switch power on | 
| Off | Switch power off | |
| MGMT (24T/24P only) | Solid Green | OOB Link | 
| Off | OOB Link down | |
| ATTN | Solid Green | Use not defined in 30.5 | 
| Off | Use not defined in 30.5 | |
| Solid Red | Use not defined in 30.5 | |
| Off | Use not defined in 30.5 | |
| System | Blinking Green | System Normal | 
| Off | System off | 
| Color/State | Port State | 
|---|---|
| Solid green | Link is OK | 
| Blinking Green | Traffic activity | 
| Solid Amber | PoE and link is up | 
| Blinking amber | Link is OK and transmitting packets; port is powered | 
| Off | No link, or disabled port; port is powered | 
| Color/State | Port State | 
|---|---|
| Solid green | Link is up, not receiving POE power | 
| Blinking Green | Traffic activity, not receiving POE power | 
| Solid Amber | Link is up, receiving POE power, no traffic | 
| Blinking amber | Link is up, receiving POE power, traffic activity | 
| Off | Link is down and not receiving POE power | 
| Color/State | Port State | 
|---|---|
| Solid green | Link is up | 
| Blinking Green | Traffic activity | 
| Off | Link is down |