Huawei OSN 8800 OTN Line Board TN52ND2

Basic function

The ND2 board converts signals as follows:

• TN11ND2/TN12ND2:
  • 8 x ODU1/2 x ODU2<->2 x OTU2
  • 2 x ODU2e<->2 x OTU2e
• TN52ND2T01/TN52ND2T02:
  • 16 x ODU0/8 x ODU1/2 x ODU2<->2 x OTU2
  • 2 x ODU2e<->2 x OTU2e
• TN52ND2T04/TN53ND2:
  • 16 x ODU0/8 x ODU1/2 x ODU2/4 x ODUflex<->2 x OTU2
  • 2 x ODU2e<->2 x OTU2e

Supports hybrid transmission of the ODU0 signals, ODU1 signals , ODUflex signals and the ODU2/ODU2e signals.

Cross-connect capabilities

Supports cross-connections with cross-connect boards.

• TN11ND2/TN12ND2: 8 x ODU1/2 x ODU2/2 x ODU2e
• TN52ND2T01/TN52ND2T02: 16 x ODU0/8 x ODU1/2 x ODU2/2 x ODU2e
• TN52ND2T04/TN53ND2: 16 x ODU0/8 x ODU1/4 x ODUflex/2 x ODU2/2 x ODU2e

OTN function

• Supports the OTU2/OTU2e interface on the WDM side.
• Supports the OTN frame format and overhead processing by referring to the ITU-T G.709.
• OTU2 layer: supports the SM function.
• ODUk (k=0, 1, 2) layer: supports the PM and TCM function, and PM and TCM non-intrusive monitoring functions.
• ODUflex layer: supports the PM function and PM non-intrusive monitoring functions.

NOTE:

Only the TN52ND2T04/TN53ND2 supports TCM and TCM non-intrusive monitoring for ODU0.

WDM specification

Supports ITU-T G.694.1-compliant DWDM specifications.

Tunable wavelength function

Supports tunable wavelength optical modules that provide for:

• 40 wavelengths tunable in the C band with 100 GHz channel spacing
• 80 wavelengths tunable in the C band with 50 GHz channel spacing

ESC function

Supported

PRBS function

Supports the PRBS function on the WDM side.

NOTE:

If the TN52ND2T04/TN53ND2 board interconnects with another line board, PRBS must be enabled for the TN52ND2T04/TN53ND2 board and the connected line board. In addition, the PRBS function can take effect on the boards only when the following condition is met:

The TN52ND2T04/TN53ND2 board works in standard mode and ODU0, ODU1, or ODUflex cross-connections are configured for the TN52ND2T04/TN53ND2 board, or the TN52ND2T04/TN53ND2 board works in compatible mode but no cross-connection is configured for it.

LPT function

Not supported

FEC coding

TN11ND2:

• Supports ITU-T G.709-compliant forward error correction (FEC) on the WDM side.
• Supports ITU-T G.975.1-compliant advanced forward error correction (AFEC) on the WDM side.

TN12ND2/TN52ND2/TN53ND2:

• Supports ITU-T G.709-compliant forward error correction (FEC) on the WDM side.
• Supports ITU-T G.975.1-compliant AFEC-2 on the WDM side.

NOTE:

Boards that use different FEC modes cannot interconnect with each other.

Alarm and performance event monitoring

• Monitors BIP8 bytes (Bursty mode) to help locate line failures.
• Monitors parameters such as the bias current, temperature, and optical power of the laser.
• Monitors OTN alarms and performance events.

Regeneration board

• The WDM-side signals from one TN11ND2 board can be regenerated by another TN11LSXR board.
• The WDM-side signals from one TN12ND2/TN52ND2/TN53ND2 board can be regenerated by another TN12ND2/TN52ND2/TN53ND2/TN55NO2/TN53NQ2/TN54NQ2 board.

ALS function

Not supported

Test frame

Not supported

IEEE 1588v2

The TN12ND2/TN52ND2T01/TN52ND2T02/TN53ND2 board supports the BC and OC modes; it does not support the TC or TC+OC mode.

Physical clock

The TN12ND2 board supports this feature only when ODU1 signals are cross-connected from the backplane.

The TN52ND2T01/TN52ND2T02 board supports this feature only when ODU0 or ODU1 signals are cross-connected from the backplane.

The TN53ND2 board supports this feature only when ODU0, ODU1, ODUflex signals are cross-connected from the backplane.

Optical-layer ASON

Supported

Electrical-layer ASON

Supported by the TN11ND2/TN12ND2/TN52ND2/TN53ND2

Protection scheme

• Supports ODUk SNCP.
• Supports intra-board 1+1 protection (when working with the OLP/DCP/QCP board).
• Supports OWSP protection.
• Supports ODUk SPRing protection.
• Supports tributary SNCP protection.

NOTE:

When the cross-connect granularity is ODUflex, the board does not support tributary SNCP protection and ODUk SPRing protection.