NS4 OSN8800 OTN

NS4 single board function and characteristics (line mode)

Functions and characteristics

describe

fundamental function

NS4 supports the conversion of the following signals:

80xODU0/80xODUflex/40xODU1/10xODU2/10xODU2e/2xODU3/1xODU4<->1xOTU4

Support the mixed transmission of ODU0, ODU1, ODU2, ODU2e, ODUflex and ODU3.

Cross ability

Support 80-channel ODU0/ODUflex or 40-channel ODU1 or 10-channel ODU2/ODU2e or 2-channel ODU3 or 1-channel ODU4 signals to realize cross scheduling of services with the crossbar.

OTN function

· The wavelength division side supports OTU4 interface.

· The frame format and overhead processing recommended by ITU-T G.709 are adopted.

· OTU4 layer: support SM function.

· ODUk(k=0, 1, 2, 3, 4, flex) layer: supports PM and TCM functions, and non-intrusive monitoring functions of PM and TCM.

Description:

· 

Only tn56ns4/tn57n4/tn58ns4/tn59n4 support TCM function of ODUflex layer and non-intrusive monitoring function of TCM.

· 

WDM specification

Support DWDM technical specifications.

Wavelength adjustable function

TN59NS4 wave splitting optical signal can be adjusted in the 96-wave range extending the 50GHz interval of C-band, and other single-board wave splitting optical signals can be adjusted in the 80-wave range extending the 50GHz interval of C-band.

ESC function

support

PRBS function

The wave splitting side supports PRBS function.

LPT function

not support

Error correction coding

TN54NS4: supports HFEC/HFEC2 and SDFEC coding.

TN56NS4: supports SDFEC encoding.

TN57NS4: supports HFEC and SDFEC2 coding.

TN58NS4: supports SDFEC2 and HFEC PLUS coding.

TN59NS4: supports SDFEC2, HFEC PLUS and FEC coding.

Description:

Veneers with different error correction codes cannot be docked.

Performance monitoring and alarm monitoring

· BIP8 byte monitoring (burst mode) can be provided to locate the fault of the line.

· Provide the following monitoring functions: laser bias current monitoring, laser working temperature monitoring, optical power monitoring, etc.

· Support OTN performance monitoring and alarm monitoring functions.

Relay board

The wave splitting signal of NS4 single board can be relayed by other NS4 and LTX single boards of the same type. For example:

· 

The NS4 veneer of T01 can be relayed through other NS4 veneers and LTX veneers of T01. That is, the TN54NS4T01 single board can be relayed through T01 TN54NS4, TN57NS4, TN11LTX and TN12LTX single boards.

· 

ALS function

not support

Time delay measurement

· TN54NS4/TN56NS4/TN57NS4: Not supported.

· TN58NS4/TN59NS4: When building high-order crossovers, it supports TCM time delay measurement of uplink high-order ODU channels; When building a low-order crossover, it supports the measurement of uplink high-order ODU channel PM/TCM and low-order ODU channel TCM time delay.

Description:

· 

In a mapping path, the largest particle ODUk channel is the high-order ODU channel, and the other ODUk channels are low-order ODUk channels.

· 

Test frame function

not support

IEEE 1588v2

not support

Physical layer clock

not support

Optical layer ASON

support

Description:

For TN59NS4 single board, ASON, V100R013C10SPC500 and later versions are not supported in high SOP mode before V100R013C10SPC500 version, and ASON without optical parameters is only supported in high SOP mode.

Electric layer ASON

support

Protection mode

· Support ODUk SNCP protection.

· Support in-board 1+1 protection (with QCP or OLP or DCP single board).

· Support branch SNCP protection.

· Support ODUk ring network protection.

Description:

When the scheduling particle is ODUflex, branch SNCP protection and ODUk ring network protection are not supported.

Description:

TN59NS4 does not support ODUk ring network protection.

loopback

Wave splitting

ODU0 channel

ODU1 channel

ODU2 channel

ODU3 channel

ODUflex channel

support

support

support

support

support

support