LED |
Description |
Status |
||
| On | Off | Flash | ||
| REDALM | Red Alarm LED | Red Alarm | No Red or Blue Alarm |
AIS (Blue) Alarm |
| YELALM | Yellow Alarm LED | Yellow Alarm | No Yellow Alarm | N/A |
| ERRST | Error Status LED | CRC/Framing Error or BipolarViolation Detected |
No Errors | N/A |
| M/S | Master/Slave Mode Setting Indication LED |
Master Mode Setting | Slave Mode Setting | N/A |
| CLKM | Clock Master Indication | Clock Source | Not Synchronized | Synchronized with master (500ms on 500 ms off). This is the slave card in a 2 or more T1/PRI system. |
| OPR0 | Layer 1 Connection Status | Layer 1 issue | normal | N/A |
| OPR1 | Layer 2 Connection Status | Layer 2 issue | normal | N/A |
| OPR2 | Initialization Status | N/A | No Data Transmission | Initialization Data Transmission |
| MB | Make Busy LED | Busy with calls | Idle, no calls | In Make Busy and no active calls, new calls are prevented. |