Cisco Routed Optical Networking Solution Guide, Release 4.0

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Components and connections in multi-degree topology with NCS 1010 nodes

Updated: May 5, 2026

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Overview

This section explains how to build a multi-degree Routed Optical Networking topology using Cisco NCS 1010 nodes. It describes the topology layout, wiring approach, required modules, and configuration tasks for multi-degree optical connectivity.

Topology diagram

This topology diagram illustrates the setup for multi-degree networks using NCS 1010 nodes.

Figure 1. Multi-degree topology using NCS 1010 nodes
Multi-degree topology using NCS 1010 nodes

These diagrams show the wiring configuration for the multi-degree topology using NCS 1010 nodes.

Figure 2. Wiring diagram for multi-degree topology
Wiring diagram for multi-degree topology

Topology components

You need this hardware to build this topology:

  • Cisco NCS 1010 devices

  • NCS1K-MD32E-C modules

  • NCS1K-MD32O-C modules

  • NCS1K-BRK-8 modules

  • Cisco 8201 routers

  • QDD-400G-ZR-S transceivers

  • LC/LC cables

  • MPO cables

For more information, see Hardware components.

Port connections

Use this sequence to connect the cables and build this topology:

  1. On the Cisco 8201 routers:

    1. Align the QDD-400G-ZR-S transceiver module with the transceiver socket opening in Port 20. Carefully slide it into the socket until contact with the socket electrical connector.

    2. Holding the pull-tab, seat the transceiver in the module’s transceiver socket fully until it clicks.

    3. Attach an LC/LC fiber immediately to the QDD-400G-ZR-S transceiver module.

    4. Connect the other end of the LC/LC fiber to the corresponding bulkhead adapter on the front panel of the NCS1K-MD-32O-C (MD-32-O-C using frequency 196.1 THz) module or the NCS1K-MD-32E-C (MD-32-E-C using frequency 195.025 THz) module.

  2. Connect an LC/LC fiber from the COM-TX port of the MD-32-O-C module to the A/D 3 RX port of the OLT-R-C module in NCS 1010–1.

  3. Connect an LC/LC fiber from the COM-RX port of the MD-32-O-C module to the A/D 3 TX port of the OLT-R-C module in NCS 1010–1.

  4. Connect an LC/LC fiber from the COM-TX port of the MD-32-E-C module to the A/D 2 RX port of the OLT-R-C module in NCS 1010–1.

  5. Connect an LC/LC fiber from the COM-RX port of the MD-32-E-C module to the A/D 2 TX port of the OLT-R-C module in NCS 1010–1.

  6. Connect an LC/LC fiber from the LINE RX port of the OLT-R-C module in NCS 1010–1 to the LINE 0 TX port of the OLT-R-C module in NCS 1010–2.

  7. Connect an LC/LC fiber from the LINE 0 TX port of the OLT-R-C module in NCS 1010–1 to the LINE RX port of the OLT-R-C module in NCS 1010–2.

  8. Connect an MPO fiber from the A/D 4–11 port of the OLT-R-C module in NCS 1010–2 to the COM port of the BRK-8-2 module.

  9. Using LC/LC fibers, interconnect the BRK-8-2, BRK-8-3, and BRK-8-5 modules.

  10. Connect an MPO fiber from the COM port of the BRK-8-3 module to the A/D 4–11 port of the OLT-R-C module in NCS 1010–3 .

  11. Connect an LC/LC fiber from the LINE RX port of the OLT-R-C module in NCS 1010–3 to the LINE 0 TX port of the OLT-R-C module in NCS 1010–4.

  12. Connect an LC/LC fiber from the LINE 0 TX port of the OLT-R-C module in NCS 1010–3 to the LINE RX port of the OLT-R-C module in NCS 1010–4.

  13. Connect an LC/LC fiber from the COM-TX port of the MD-32-O-C module to the A/D 2 RX port of the OLT-R-C module in NCS 1010–4.

  14. Connect an LC/LC fiber from the COM-RX port of the MD-32-O-C module to the A/D 2 TX port of the OLT-R-C module in NCS 1010–4.

  15. Connect an MPO fiber from the COM port of the BRK-8-5 module to the A/D 4–11 port of the OLT-R-C module in NCS 1010–5 .

  16. Connect an LC/LC fiber from the LINE 0 TX port of the OLT-R-C module in NCS 1010–5 to the LINE 0 LINE RX port of the ILA-2R-C module in NCS 1010–6.

  17. Connect an LC/LC fiber from the LINE RX port of the OLT-R-C module in NCS 1010–5 to the LINE 0 TX port of the ILA-2R-C module in NCS 1010–6.

  18. Connect an LC/LC fiber from the LINE-2 TX port of the ILA-2R-C module in NCS 1010–6 to the LINE RX port of the OLT-R-C module in NCS 1010–7.

  19. Connect an LC/LC fiber from the LINE 2 LINE RX port of the ILA-2R-C module in NCS 1010–6 to the LINE 0 TX port of the OLT-R-C module in NCS 1010–7.

  20. Connect an LC/LC fiber from the COM-TX port of the MD-32-E-C module to the A/D 2 RX port of the OLT-R-C module in NCS 1010–7.

  21. Connect an LC/LC fiber from the COM-RX port of the MD-32-E-C module to the A/D 2 TX port of the OLT-R-C module in NCS 1010–7.

Next steps

After you build the topology, perform these steps: