This table identifies various pieces of armour worn from the medieval to Early Modern period in the West, mostly plate but some mail, arranged by the part of body that is protected and roughly by date.y the mid-14th century it replaced the great helm and was fully visored, often dog faced (the conical hounskull visor), often worn without a visor for visibility and 'breathability'. Worn with an aventail then later with a gorget.
(Learn how and when to remove this template message) Web Services for Devices or Web Services on Devices (WSD), is a Microsoft API to simplify programming connections to web service enabled devices, such as Printers, Scanners and File Shares. Such devices conform to the Devices Profile for Web Services (DPWS).
But notice how the addresses are different for the two devices. In one of the addresses it says WSD. I have looked it up and it's a Microsoft API. It stands for Web Services for Devices. I kindly asked Epson tech support what this was, and they either didn't know the answer to that or didn't care to explain.