FIRMWARE 1.0.3.4 GXW4248 USER MANUAL PAGE 12 OF 54
LINK LED and ACT LED blinking in following status indicate different network speed.
10M: LINK and ACT all blink, ACT blinks faster then LINK
100M: LINK and ACT all blink, ACT blinks the same fast as LINK
1000M: LINK does not blink, only ACT blink
Slow blinking of FXS LED together indicates a firmware upgrade or provisioning state.