Physical Media Dependent - Creativyst(R) Glossary of developer terms.

PMD - In layer 1 of the OSI 7-layer internetworking model, this is the part of the PHY that dictates the way bits are converted to physical signals, such as light in the case of fiber.

	PMD - In layer 1 of the OSI 7-layer internetworking model, this is the part of the PHY that dictates the way bits are converted to physical signals, such as light in the case of fiber.
	Physical Coding Sublayer