![](/images/new-backgrounds/1300808/30080841x1.webp)
There are two 1000BASE-LX (longwave gigabit) MDA models:
1 2
TX | RX | TX | RX |
Link |
Phy Select |
Activity |
| 4 | 3 |
1 | 2 | |
|
| |
(single port) |
|
|
TX RX
Link |
Phy |
Activity |
43
BS45045A
Figure 5. 1000BASE-LX MDA Front Panels
19