You can monitor your 3000 Series by checking the status lights on the front panel of your gateway router and also on the connectors and modules on the back panel of your gateway router.
Front Panel
Analog Voice Module
DDS CSU/DSU Module
E1 Module
Ethernet Fixed Connector
Ethernet Module
ISDN Modules
SDSL Module
T1 CSU/DSU Module
Front Panel
The status lights on the front of the 3000 Series indicate the current overall status of the gateway router, as well as the status of the data ports and the voice ports.
3000 Series is running its diagnostic or startup (BOOT) software.
Light
State
Indicates . . .
PWR
(Power)
On
Power supply is operating within its
specifications.
OK
On
3000 Series is running its operational software.
Light
State
Indicates . . .
ALM
On
The 3000 Series detected a noncatastrophic hardware failure during power up.
Data Ports
There are four lights on the front panel that indicate the status of the data ports.
| Light | State | Indicates . . . |
|
ETH (Ethernet) |
On |
LAN connection to your local network is up. 3000 Series is sending and receiving user data on its LAN link. |
|
D1 D2 D3 |
Status of optional modules installed in slots 1, 2, and 3. Connection is up, and the 3000 Series is sending maintenance data to the remote device on its link. 3000 Series is sending and receiving user data on its link. Module installed in the particular slot is not running, or no module is installed. |
Voice Ports
There are four lights on the front panel that indicate the status of the voice ports. Analog voice modules can have either two or four ports. Lights V1 and V2 apply to the two-port model. Lights V1, V2, V3, V4 apply to the four-port model.
| Light | State | Indicates . . . |
| V1, V2, V3, or V4 | On | Call is active |
Analog Voice Module
Each port of the fixed Analog Voice module has two status lights.
| Light | State | Indicates . . . |
| Off | Channel is not configured | |
| Green | On | Channel is idle |
| Red |
On | Channel busied out (outbound seizure to block incoming calls) |
DDS CSU/DSU Module
This module has three amber status lights.
| Light | Indicates . . . |
| ALM | Alarm condition indicating the loss of loop current, bi-polar violations, loss of signal, out of service/out of sync, out of frame, and unmatched control code. |
| TST | Module is in loopback test mode. |
| LOS | Loss of signal indicating that the module is unable to sync to the incoming data stream. |
E1 Module
This module has three amber status lights.
| Light | Indicates . . . |
| ALM | Alarm condition indicating the following: |
| TST | Module is in loopback test mode. |
| LOS | Loss of sync indicating that the module is unable to sync to the incoming data stream. |
Ethernet Fixed Connector
The fixed Ethernet connector has two status lights. The left one is for link status, and the right one is for traffic activity status.
| Light | State | Indicates . . . |
| Left (Link Status) | On | Ethernet connection is established. |
| Right (Activity Status) | On |
N/A Traffic is being sent or received over the Ethernet connection. |
Ethernet Module
The Ethernet module has two status lights, one for link status and one for traffic activity status.
| Light | State | Indicates . . . |
| LNK (Link Status) | On | Ethernet connection is established. |
| ACT (Activity Status) | On |
N/A Traffic is being sent or received over the Ethernet connection. |
ISDN Modules
There are three green status lights on the ISDN U and S/T modules. These lights indicate the ISDN BRI status of the two B and one D channels. Both B and D channel lights go off when you restart the gateway router.
| Light | State | Indicates . . . |
| D |
On |
ISDN S/T module is linked to the telephone company. ISDN S/T module is not linked to the telephone company. This is an error in North America but okay in Europe. |
| B1 | On | Call established on the B1 channel. |
| B2 | On | Call established on the B2 channel. |
SDSL Module
This module has three amber status lights.
| Light | Indicates . . . |
| ALM | Alarm condition indicating a loss of communication between the SDSL module and the host processor. |
| TST | Module is in loopback test mode. |
| LOS | Loss of sync indicating that the module is not activated with the DSLAM (Digital Subscriber Loop Access Multiplexor). |
T1 CSU/DSU Module
This module has three amber status lights.
| Light | Indicates . . . |
| ALM | Alarm condition indicating standard blue, yellow, or red alarm conditions. |
| TST | Module is in loopback test mode. |
| LOS | Loss of sync indicating that the module is unable to sync to the incoming data stream. |