Coupling Express3 LR features

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Coupling Express3 LR 10Gb feature (FC 0498) supports long-distance point-to-point coupling communications between IBM z17 (Model ME1), IBM z16, and IBM z15 machines.

Coupling Express3 LR 25Gb feature (FC 0499) supports long-distance point-to-point coupling communications between IBM z17 (Model ME1) machines only. This feature cannot be interconnected with the 10Gb version.

The Coupling Express3 LR adapter connects to a card slot in the PCIe+ I/O drawer.

Coupling Express3 LR is a two-port, Ethernet-based coupling card with a data rate of 10.0 Gbps* and a maximum unrepeated distance of 10 km and a maximum repeated distance of 100 km with a qualified Dense Wavelength Division Multiplexing (DWDM) device. Coupling Express3 LR utilizes a 9 micron single mode cable that connects to the Coupling Express3 LR card using LC Duplex connectors on both ends. It is recommended that you order Coupling Express3 LR cabling through Anixter to get IBM® qualified cables. For more information, see Planning for Fiber Optic Links (FICON®/FCP, Coupling Links, Open Systems Adapters, and zHyperLink Express) .

Note: * The link data rates, (for example, 6.0 GBps, 8.0 GBps, 5 Gbps, and 10 Gbps), do not represent the performance of the links. The actual performance is dependent upon many factors including latency through the adapters, cable lengths, and the type of workload.
  • You can order Coupling Express3 LR (FC 0498) 10Gb in increments of one feature (2 ports), up to a maximum of 64 features (128 ports). Coupling Express3 LR supports up to eight CHPIDs per port.
  • You can order Coupling Express3 LR (FC 0499) 25Gb in increments of one feature (2 ports), up to a maximum of 64 features (128 ports). Coupling Express3 LR supports up to eight CHPIDs per port.
  • There are no supported carry forward features.

Coupling Express3 LR requires the presence of an IFP processor.




The graphic shows the Coupling Express3 LR cabling.