![](/images/new-backgrounds/1300808/30080835x1.webp)
Table 5. 1000BASE-SX MDA Description
Item | Label | Description |
|
|
|
2 | Phy | Phy status LEDs (green): |
| (or) |
|
| Phy Select |
|
|
| On: The corresponding Phy port is |
|
| active. |
|
| Off: The corresponding Phy port is in |
|
| backup mode or there is no connection |
|
| to this port. |
3 | Activity | Port activity LEDs (green): |
|
| Blinking: Indicates network activity |
|
| level for the corresponding port. A high |
|
| level of network activity can cause |
|
| LEDs to appear to be on continuously. |
4 |
| |
|
|
|
For installation instructions, see “Installing an MDA” on page 22
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