Chinese
English
Problem Description
Why does the OptiX OSN1500B transmission equipment replace the standby SSQ5CXLLN veneer, and after synchronizing the master and the standby, immediately perform a master and standby reversal, and the service will flash off?
Solution
After the completion of the master and backup batch backup (conventional situation, you can carry out the master and backup inversion), the backup master packet matching (OSN1500 OptiX uses analog packet software, but there is also a packet file inside the master) is almost completed but not yet reset before the master and backup inversion command was issued, causing the original 82 main master to get up for the first time due to the master and backup keep function, and then carry out another master and backup inversion reset, due to the fact that the two masters ( ssq5cxlln master cross-clock board) reset at the same time, causing the business to have flash off.
Recommendation
After replacing the backup master control board in the current network, do not immediately reverse the master and backup. Wait until the synchronization state of the master and backup masters is complete, there are no abnormal alarms, and packet matching is complete, and then do a manual master and backup inversion (query the state of double-normal state through :sftm-rtrv-state:swdl).
Description
Huawei OSN1500B Optical Transceiver SSQ5CXLLN master can choose three different optical modules, STM-1/STM-4/STM-16.
I. Optical interface indexes when the SSQ5CXLLN single board selects the STM-1 optical module
| Item | Indicator value | ||||
|---|---|---|---|---|---|
| Nominal bit rate | 155520 kbit/s | ||||
| Line code type | NRZ coded signal | ||||
| Optical interface type | I-1 | S-1.1 | L-1.1 | L-1.2 | Ve-1.2 |
| Transmission distance (km) | 0～2 | 2～15 | 15～40 | 40～80 | 80～100 |
| Operating wavelength range (nm) | 1260～1360 | 1261～1360 | 1263～1360 | 1480～1580 | 1480～1580 |
| Fiber Type | Single-mode LC | Single-mode LC | Singlemode LC | Singlemode LC | Singlemode LC |
| Transmit optical power range (dBm) | -15 to -8 | -15 to 8 | -5 to 0 | -5 to 0 | -3 to 0 |
| Optical reception sensitivity (dBm) | -23 | -28 | -34 | -34 | -34 |
| Minimum Overload Point (dBm) | -8 | -8 | -8 -8 | -10 | -10 |
| Minimum extinction ratio (dB) | 8.2 | 8.2 | 10 | 10 | 10 |
| Maximum -20dB spectral width (nm) | - | - | - - | 1 | 1 |
| Minimum Side-Mode Rejection Ratio (dB) | - - - 1 1 | - - - - - - - - - - - - - - - - - - - - - - - | - - - - - - - - - - - - - - - - - - - - - - - | 30 | 30 |
II. Optical interface indexes of Huawei OSN1500B transmission equipment SSQ5CXLLN single board when STM-4 optical module is selected
| Item | Indicator value | ||||
|---|---|---|---|---|---|
| Nominal bit rate | 622080 kbit/s | ||||
| Line code type | NRZ coded signal | ||||
| Optical interface type | I-4 | S-4.1 | L-4.1 | L-4.2 | Ve-4.2 |
| Transmission distance (km) | 0～2 | 2～15 | 15～40 | 40～80 | 80～100 |
| Operating wavelength range (nm) | 1261～1360 | 1274～1356 | 1280～1335 | 1480～1580 | 1480～1580 |
| Fiber Type | Single-mode LC | Singlemode LC | Singlemode LC | Singlemode LC | Singlemode LC |
| Transmit optical power range (dBm) | -15 to -8 | -15 to -8 | -3 to 2 | -3 to 2 | -3 to -2 |
| Optical reception sensitivity (dBm) | -23 | -28 | -28 | -28 | -34 |
| Minimum Overload Point (dBm) | -8 | -8 | -8 -8 | -8 -8 | -13 |
| Minimum extinction ratio (dB) | 8.2 | 8.2 | 10 | 10 | 10.5 |
| Maximum -20dB spectral width (nm) | - | - | 1 | 1 | 1 |
| Minimum Side-Mode Rejection Ratio (dB) | - - - - - - - - - - - - - - - - - - - - - - - | - | 30 | 30 | 30 |
C. Optical interface indexes of Huawei OSN1500B transmission equipment SSQ5CXLL when STM-16 optical module is selected for the main control
| Item | Indicator Value | |||
|---|---|---|---|---|
| Nominal bit rate | 2488320 kbit/s | |||
| Line code type | NRZ coded signal | |||
| Optical interface type | I-16 | S-16.1 | L-16.1 | L-16.2 |
| Transmission distance (km) | 0～2 | 2～15 | 15～40 | 40～80 |
| Operating wavelength range (nm) | 1266～1360 | 1260～1360 | 1280～1335 | 1500～1580 |
| Fiber Type | Single-mode LC | Singlemode LC | Singlemode LC | Single-mode LC |
| Transmit optical power range (dBm) | -10 to -3 | -5 to 0 | -2 to 3 | -2 to 3 |
| Optical receive sensitivity (dBm) | -18 | -18 | -27 | -28 |
| Minimum overload point (dBm) | -3 | 0 | -9 | -9 |
| Minimum extinction ratio (dB) | 8.2 | 8.2 | 8.2 | 8.2 |
| Maximum -20dB spectral width (nm) | - | 1 | 1 | 1 |
| Minimum Side Mode Rejection Ratio (dB) | - - - - - - - - - - - - - - - - - - - - - - - | 30 | 30 | 30 |
