Implements non-congestion full cross-connection of 640 Gbit/s ODUk (k = 0, 1, 2, 2e, 3, flex) signals.

• Accomplishes the service grooming, configuration management and alarm output of a subrack.
• Supports the backup of the NE data. When the NE data changes, the real-time database backup function immediately saves the changed configuration data into the storage medium to ensure that no configuration data is lost after the NE is reset (cold) or powered off. This improves the reliability of the NE.
• Supports the function of the CF card to back up database. The NE date (except NE IP, NE ID, Gateway ID and Node ID) and the board software are backed up to the CF card, so that the NE needs not to be re-configured after the replacement of the TN16XCH.
• Supports interconnection and communication between NEs through IP over DCC, OSI over DCC, or HWECC.
• Implements communication between NEs when used with the TN16AUX by using DCC bytes.
• Supports subrack cascading. The TN16XCH board processes subrack overheads and alarms and delivers configurations to slave subracks. It connects to the U2000 so that the U2000 can manage the entire NE.

• Basic function:
  • Locks the reference clock source.
  • Provides the system with ITU-T clock signals that comply with G.813- and ITU-T G.823 and frame signals.
  • Synchronizes the time of an NE with the time of the upstream system.
• Clock source selection function:

  Traces the external clock source, service clock source, or local clock source, to provide the synchronization clock source for itself and the system.

• Time synchronization function:

  Synchronizes the time of an NE with the time of the upstream NE.

Supports 1+1 protection.

Provides 1+1 hot backup.

Supports warm backup.

Supports the manual switching and auto switching.

Supports the non-revertive switching.

Supported