Physical Layer - Physical Signaling Sublayer

In a local area network (LAN) or a metropolitan area network (MAN) using open systems interconnection (OSI) architecture, the physical signaling sublayer is the portion of the physical layer that:

  • interfaces with the data link layer's media access control (MAC) sublayer,
  • performs character encoding, transmission, reception and decoding and,
  • performs galvanic isolation.

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