The following tables describe the LEDs on the E4G-200 cell site router (models E4G-200 and E4G-200-12x).
System LEDs
| Label/type | Color/State | Meaning |
|---|---|---|
| MGMT | Steady green | Power-on self- test (POST) passed, normal operation |
| Blinking green | POST in progress | |
| Amber | POST failed or system has overheated | |
| Off | No power | |
| FAN | Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No power | |
| PSU-1, PSU-2 | Steady green | Normal operation |
| Blinking amber | Power failure | |
| Off | No power attached to this connector |
MGMT Port LEDs
| Label/type | Color/State | Meaning |
|---|---|---|
| ACT | Blinking green | Packet transmitting or receiving |
| Off | No packet transmitting or receiving | |
| LINK | Blinking green | Link up |
| Off | No link or port disabled |
Port LEDs
| Label/type | Color/State | Meaning |
|---|---|---|
| Ports 1 – 8 (see note) |
Steady green | Link exists |
| Blinking green | Activity occurring | |
| Off | No link or port is disabled | |
| Ports 9 – 12 (see note) |
Steady green | Link exists |
| Blinking green | Activity occurring | |
| Off | No link or port is disabled |

Note
On model E4G-200 routers, LEDs for ports 1 – 8 are located above the ports and LEDs for ports 9 – 12 are located on SFP cages.On model E4G-200-12x routers, LEDs for ports 1 – 12 are located on SFP cages.
Clock Module LED
| Label/type | Color/State | Meaning |
|---|---|---|
| PWR | Steady green | 3.3 V power OK |
| Off | No power |
F16T1E1 Module LEDs
| Label/type | Color/State | Meaning |
|---|---|---|
| Local
(Alarm LED) |
Steady green | Local alarm active |
| Blinking green | Local alarm active but silenced | |
| Off | No local alarm active | |
| Remote
(Alarm LED) |
Steady green | Remote alarm active |
| Blinking green | Remote alarm active but silenced | |
| Off | No remote alarm active | |
| On-Line | Steady green | On line |
| Off | Off line | |
| PWR | Steady green | Normal operation |
| Off | No power | |
| Port LEDs (1 – 16) | Steady green | Link OK |
| Blinking green | Activity | |
| Off | No link, or port is disabled |