Chapter 17 - Network troubleshooting procedures. Chapter summary: Computers have a variety of ports, some of which are implemented by the motherboard and others by expansion cards; computers use many different types of connectors fortheir various interfaces, and in some cases the same connector type can provide different functions; SCSI host adapters can use any one of several types of connectors, which are not interchangeable;. | Chapter Overview Identifying Network Components Troubleshooting a Network Locating Ports The ports on a typical computer are located either on the motherboard or on expansion cards that plug into the system bus. If the same type of port can have more than one function, you can sometimes tell what a port does by where it is located. The locations of the motherboard ports vary, depending on the design of the computer. The Back Panel of an Older Computer The Back Panel of a Newer Computer DB-9 Serial Ports DB-9 and DB-25 Serial Ports on an Older Computer The Female DB-25 Connector Used by a Parallel Port A 15-Pin VGA Connector Six-Pin Mini-DIN Connectors A Five-Pin DIN Connector Universal Serial Bus (USB) Ports The USB is a relatively recent innovation that is replacing many of the ports on computers, such as the serial, parallel, keyboard, and mouse ports. The USB is a multipurpose bus that Runs at up to 12 megabits per second (Mbps) Supports a . | Chapter Overview Identifying Network Components Troubleshooting a Network Locating Ports The ports on a typical computer are located either on the motherboard or on expansion cards that plug into the system bus. If the same type of port can have more than one function, you can sometimes tell what a port does by where it is located. The locations of the motherboard ports vary, depending on the design of the computer. The Back Panel of an Older Computer The Back Panel of a Newer Computer DB-9 Serial Ports DB-9 and DB-25 Serial Ports on an Older Computer The Female DB-25 Connector Used by a Parallel Port A 15-Pin VGA Connector Six-Pin Mini-DIN Connectors A Five-Pin DIN Connector Universal Serial Bus (USB) Ports The USB is a relatively recent innovation that is replacing many of the ports on computers, such as the serial, parallel, keyboard, and mouse ports. The USB is a multipurpose bus that Runs at up to 12 megabits per second (Mbps) Supports a wide range of devices through the same interface Computers today typically have two USB ports, which use rectangular, female, four-conductor connectors. USB A-Connectors SCSI Ports The Small Computer System Interface (SCSI) is a mass storage interface that supports many different internal and external devices at speeds up to 160 Mbps. SCSI implementations typically involve a host adapter card that plugs into the computer's expansion bus. A few computers have a SCSI adapter integrated into the motherboard. A SCSI host adapter usually has both internal and external connectors. Internally, SCSI uses ribbon connectors that attach to hard drives and other devices. External SCSI cables are thick and relatively inflexible because of their heavy shielding and the tight bundling of wires contained inside. SCSI Connectors A Combination Ethernet NIC A BNC Connector with a T Attached An Ethernet NIC with an RJ-45 Jack A Token Ring Media Filter The Back of a .
