NPO2E Board Service Configuration

On the U2000 Web LCT, each optical interface on the NPO2E board has a serial number, and the logical ports of the board are provided.

Display of Optical Interfaces

Table 1 lists the serial numbers of the optical interfaces on the front panel of the board displayed on the NMS.

**Table 1** Serial numbers of the interfaces on the NPO2E displayed on the NMS
Interface on the Front Panel	Interface on the NMS
IN/OUT	1

NOTE:

The number of an interface displayed on the U2000 Web LCT indicates a pair of physical optical interfaces, of which one is used to transmit signals and the other is used to receive signals.

Port Description

The NPO2E board can work only in standard mode. Figure 1 shows the board model.

NOTE:

For descriptions of the board model , see .

Figure 1 Diagram of ports on the NPO2E

NOTE:

ODU0, ODU1, ODU2, and ODU2e signals carried over the NPO2E board's OCH9 to OCH12 channels are processed on the TN54ENQ2 board.

The OCH9 to OCH12 optical channels only receive the signals coming from the TN54ENQ2 board.

If an ODUk channel has been used, cross-connections cannot be configured on any other channels that correspond to the ODUk channel, regardless of the rate level. For example, if channel 1(IN/OUT)-OCH:1-ODU2:1-ODU1:1 has been used, cross-connections cannot be configured on channel 1(IN/OUT)-OCH:1-ODU2:1 or 1(IN/OUT)-OCH:1-ODU2:1-ODU1:1-ODU0:1.

The NPO2E board's OCH5 to OCH8 optical channels are available only when the board works with the TN54PQ2 service processing board.

	Cross-connect module		ODU1 mapping path
	Multiplexing module		ODU2 mapping path
	Service processing module		Cross-connection that must be configured on the NMS to receive ODUk signals from other boards
	ODU0 mapping path

**Table 2** Meaning of ports on the NPO2E
Port Name	Meaning
1(IN/OUT)-OCH:(1-12)-ODU2:(1-12)-ODU1:(1-4)-ODU0:(1-2)	Indicates the mapping path for the ODU0 signals that are received through the backplane.
1(IN/OUT):(1-12)-ODU2:(1-12)-ODU1:(1-4)	Indicates the mapping path for the ODU1 signals that are received through the backplane.
1(IN/OUT):(1-12)-ODU2:(1-12)	Indicates the mapping path for the ODU2/ODU2E signals that are received through the backplane.
1(IN/OUT)	Indicates the WDM-side port.

Cross-Connection Configuration of Services

If you use the NPO2E to transmit services, you must configure cross-connections on the U2000 Web LCT. For information on how to create ODU0 cross-connections, see Figure 2. For information on how to create ODU1 cross-connections, see Figure 3. For information on how to create ODU2 cross-connections, see Figure 4.

shows configuration of cross-connections from other boards to the NPO2E board. The configuration enables add/drop of client-side services on the line at the local site.
shows configuration of cross-connections from other boards to the NPO2E board. The configuration enables line-side services to pass through the local site.

NOTE:

Cross-connections can be configured between the boards working in standard mode and the boards working in compatible mode.

Figure 2 Diagram of cross-connections of the NPO2E (ODU0 level)

Other board a	TN52TOG/TN52TOM/TN54THA/TN54TOA
Other board b	TN52ND2/TN53ND2/TN52NQ2/TN54NQ2/TN53NQ2/TN53NS2/TN52NS2/TN52NS3/TN54NS3/TN55NPO2/TN54ENQ2
Other board c	TN53NS2/TN53ND2/TN53NQ2/TN55NPO2/TN55NPO2E/TN54ENQ2

Figure 3 Diagram of cross-connections of the NPO2E (ODU1 level)

Other board a	TN52TOG/TN52TOM/TN54THA/TN54TOA
Other board b	TN52ND2/TN53ND2/TN53NQ2/TN52NQ2/TN54NQ2/TN53NS2/TN52NS2 /TN52NS3/TN54NS3/TN55NPO2/TN54ENQ2
Other board c	TN53NS2/TN53ND2/TN53NQ2/TN55NPO2/TN55NPO2E/TN54ENQ2

Figure 4 Diagram of cross-connections of the NPO2E (ODU2 level)

Other board a	TN52TOG/TN52TOM/TN54THA/TN54TOA
Other board b	TN52ND2/TN53ND2/TN53NQ2/TN52NQ2/TN54NQ2/TN53NS2/TN52NS2 /TN52NS3/TN54NS3/TN55NPO2/TN54ENQ2
Other board c	TN53NS2/TN53ND2/TN53NQ2/TN55NPO2/TN55NPO2E/TN54ENQ2

Figure 5 Diagram of cross-connections between the NPO2E and ENQ2

Example of Service Cross-Connections

Figure 6 shows an example of service cross-connections on the NPO2E board. One board can transmit a hybrid of ODU0, ODU1, and ODU2/ODU2e signals.

Figure 6 Example of service cross-connections on the NPO2E board