The module support ‘terminating modes’ and ‘non-terminating modes (NT)’. The built-in OTN block is responsible for mapping/de-mapping the host signal as well as obtaining frame alignment while monitoring for defects and raising alarms.
There are two client modes, which can be supported: 100GE and OTU4. Figure 2 shows the mapping mode supported in one framer/mapper for single-client, 100G applications (100GE/ OTU4). 100GE Ethernet clients are GMP mapped to a standard ODU4 container and after the FEC columns are added, transported towards the line as an OTU4V with either SDFEC or HDFEC encoding. Similarly, OTU4 clients are terminated at the OTU layer and converted to ODU4 which then be transported towards the line as an OTU4V with either SDFEC or HDFEC.
The module is intended to be used on system integrators host board to support transmission over DWDM links in point to point ZR(80km), Metro and long-haul networks. As shown in Figure 1, it is comprised of high-data lanes, a single 3.3V power supply, an MDIO interface for module control and status report, and dedicated alarm and control pins (not shown on the figure 1).
1.2 Module Description
The Module uses a 148-pin CFP MSA CFP Hardware Specification connector for all electrical interfaces with the host card, whereas the optical interfaces on the line side are provided through the optical receptacles on the CFP. The module can be portioned into three functional parts: Tx path, Rx path and Control & Power block.
1.3 Path Description
The host interface is comprised of a total of 10 high-speed SerDes lanes. This allows module to support two independent 4-Lane mode client interfaces(2*CAUI4/OTL4.4), or a single 10-lane client interface(1xCAUI- 10/OTL4.10/OTLC1.10). When two, 4-lane interfaces are used (200G Applications), the client modes are independent in each 4-lane interface. Therefore, mixing client types with dynamic re-provisioning is supported.
1. Support 50 GHz channel spacing DWDM infrastructure
2. 100G DP-QPSK Up to 1200km long-haul operation
3. 200G 16QAM up to 400km
4. CFP DCO Reach beyond 1200km DP-QPSK/ 500km 16QAM over legacy infrastructure under following conditions:
1) No change to existing line equipment, e.g., no extra amplification required
2) Use current in-line DCMs
3) Transmission over mixed fiber types
5. 100G DP-QPSK and 100G DP-dQPSK (differential DP-QPSK), SDFEC and Staircase HDFEC.
6. 200G 16QAM with SDFEC
7. Support CAUI4 and CAUI-10 for 100GE
8. Support OTL4.10 and OTL4.4 for OTU4 host interface for 100G or 200G application
9. Framed PRBS generator/checker on the host and network side interfaces
10. Network and client loopback at the near-endian and far-endian point
11. Embedded OTN framer and MAC/PCS Performance Monitoring
12. Hot Swappable
13. RoHS compliant
14. Compliant to CFP-MSA-HW-Spec-rev1-40
15. Compliant to CFP MSA Management Interface Specification 2.4
16. CFP Class 4
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