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Cable ID locators (optional) to identify link connections at a patch panel (twisted pair only) Note Running network tests on a fiber link requires an optional SFP module. Accessing the Product Manuals This guide provides basic information to help you get started using the module. For more detailed information, see the latest versions of the DTX Series Users Manual and the DTX Series Technical Reference Handbook provided on the DTX Product Manuals CD and on the Fluke Networks website. PN 2544310