Port Discovery - JDS Uniphase ValidatorPRO-NT, Cu User Manual

11.2 Port Discovery

Port discovery identifies telephone or network devices
connected to the other end of the jack or cable. The test
begins with a search for voltages that may be present. If
voltages are found, the patterns for commonly used services
are compared to the voltages observed and reported as
phone, ISDN or legacy phantom power as appropriate. If the
voltage pattern is unknown, the port pin conditions are
reported.
If no telephone or voltage sources are found, ValidatorPRO-
NT, Cu attempts an Ethernet link. If a link is found,
information about the link is displayed:
Identifies the Ethernet connection
Speed linked at (10, 100 or 1000 Megabit)
Type of link (MDI, MDI-X or Auto MDI/MDI-X)
Advertised Speeds of the connected Ethernet device
Advertised duplex capabilities of connected Ethernet
device
SNR
Skew if 1000BASE-T
Figure 11.3: Ethernet Port Discovery
Network Tests
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