TN12SC2 Is Huawei OSN 8800 Optical Supervisory Channel SC2 Board
Huawei OSN 8800 SC2 Board TN12SC2 Overview
SC2: bi-directional optical supervisory channel board
Two functional versions of the SC2 board are available: TN11 and TN12.
Because it is a type of optical supervisory channel unit, the TN12SC2 board processes two channels of supervisory signals in opposite directions, transmits and extracts the overhead information about the system, and processes and sends the overhead information to the SCC.
The TN12SC2 board processes and regenerates optical supervisory signals.
The TN12SC2 board consists of the optical receiving module, optical transmitting module, CMI encoding module, CMI decoding module, overhead processing module, control and communication module, and power supply module.
There are indicators and interfaces on the front panel of the TN12SC2 board.
One slot houses one TN12SC2 board.
Functions and features of the TN12SC2
Function and Feature |
Description |
Basic function |
The SC2 board receives, processes, and transmits two optical supervisory signals. The SC2 board supports a maximum of 42 dB span transmission. |
Technical features |
The distance between two optical line amplifiers is not limited by the OSC. The failure of an optical line amplifier does not affect the performance of the OSC. The SC2 board is independent of the SCC. When the SCC is not in position, the SC2 board can still ensure the pass-through of ECC with the two optical interfaces and monitor other stations. |
Regeneration function |
The SC2 board transmits signals from section to section. It also provides the 3R function. In each regenerating station that has optical amplifiers, information can be received and new supervisory signals are added. |