hub

A central point of interconnection for devices on a local area network (LAN) or LAN segment.

Hubs act as passive LAN concentrators and repeaters, with a single internal collapsed backbone bus typically running at a signaling rate of 10/100 Mbps. LAN-attached devices such as workstations, peripherals, and servers typically connect to a hub via either unshielded twisted pair (UTP) or shielded twisted pair (STP). Hubs operate at Layer 1, the Physical Layer of the OSI Reference Model. Filtering hubs also operate at a portion of Layer 2, the Data Link Layer. See also 10Base-T, 100Base-T, concentrator, Data Link Layer, LAN, OSI Reference Model, Physical Layer, repeater, STP, and UTP.

• Packet over SONET (POS)
• packet switch
• PACS (Personal Access Communications Services)
• padding
• PAD (Packet Assembler/Disassembler)
• page
• pager
• pager identification number (PID)
• pager identification number (PID)
• paging system
• paging system
• pair-gain
• Palo Alto Research Center (PARC)
• PAL (Phase Alternate Line)
• PAM (Pulse Amplitude Modulation)
• PAMS (Perceptual Analysis Measurement System)
• panel switch
• PAN (Personal Area Network)
• PANS (Pretty Advanced New Services, Pretty Advanced Network Services, Peculiar And
• paper
• paperless office
• paperless office
• PAP (Password Authentication Protocol)
• parabolic antenna
• parabolic antenna