Cisco NCS 1001 IOS XR Release 7.3.1 RTU USB Key

Provide Cisco IOS XR Release 7.3.1 for an NCS 1001 platform in a physical USB-key format. SD-SWK-XR1731K9 identifies a release-specific RTU software key rather than a network interface, optics module, or chassis component. The item pairs Cisco IOS XR software with the NCS 1001 designation and explicitly identifies Release 7.3.1, giving engineers a clear release reference when working with that platform. Use this USB key where an NCS 1001 environment calls for Cisco IOS XR Release 7.3.1 in RTU form. Its USB-key delivery format distinguishes it from software entries that provide only a software name or a platform reference. The release number is central to selection: this key is associated with IOS XR 7.3.1, not an unspecified IOS XR software revision. Keep the selected release aligned with the software level required for the NCS 1001 system being serviced or prepared. Within the NCS 1001 IOS XR software family, this item is defined by three concrete identifiers: the NCS 1001 platform, IOS XR Release 7.3.1, and USB-key delivery. RTU denotes a right-to-use software form. No license quantity, language selection, processor architecture, or upgrade path is attached to the product designation, so those requirements should be established separately when they affect the intended software deployment.