Network Considerations

Glossary I

IP A unit of information passed across an Internet. The IP portion of the TCP/IP protocol is responsible for transmitting blocks of data from the source to the destination using the IP addresses specified. It also provides for fragmentation and reassembly of data blocks that are too long for one frame on the physical network.

IPX A protocol used by Novell NetWare LANs.

IP Address Internet Protocol Address. A 32-bit address assigned to a host on a TCP/IP Internet. The IP address is divided into Host ID and Network ID portions.

IRQ Hardware interrupt level in the IBM PC standard. The PC/XT supports 8 IRQ levels and the PC/AT supports 16 levels.

LAN Local Area Network. A network that covers a single site, usually at most, a single building or cluster of buildings.

MAC Media Access Control. The lowest layer of network interface hardware and software. Most of the MAC layer is usually implemented in hardware and embedded software in the network interface hardware. Some of the functionality of the MAC layer may be in the driver for the interface hardware.

Network A system of computers interconnected by wires or other means in order to share information.

Network Interface Adapter A hardware device that allows a computer to communicate with a network. Modern network adapters contain on-board logic that implements most of the MAC layer of the network protocol.

NetDAQ A trademarked name for a series of really fine instruments, software, and accessories from the Fluke Corporation. Stands for Networked Data Acquisition.

NDIS Driver Network Device Interface Specification. One of the three popular device driver specifications used on Personal Computers. NDIS supports operation of multiple protocol stacks over the same driver and hardware interface.

NIC Network Information Center. The central agency for IP address assignment to organizations. You must get an IP address range assignment from the NIC before connecting to the international Internet.

ODI Driver A network device driver specification defined by Novell for use with the NetWare line of networking software. ODI supports operation of multiple protocol stacks over the same driver and hardware interface.

Packet A block of digital data on a network, usually containing source and destination addresses, protocol type information, and other information that allows it to be directed to the proper destination and for the receiving host to detect transmission errors.

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Fluke 2640A, 2645A user manual Network Considerations

2645A, 2640A specifications

The Fluke 2640A and 2645A are advanced bench multimeters that represent a significant leap in measurement technology, designed primarily for electrical engineers and technicians who require precision and reliability in their readings. These multimeters are built to cater to complex applications in manufacturing, research, and development.

One of the standout features of the Fluke 2640A and 2645A is their high accuracy. With specifications that can reach up to 0.0035% DC Voltage accuracy, users can trust that their measurements will be consistent and precise. This is especially critical in fields like automated test equipment (ATE) where exact measurements can be crucial for product quality and safety.

Both models incorporate a large, easy-to-read display, making it convenient for users to view measurement results clearly from a distance. They also feature a wide measurement range, capable of handling a variety of tasks, from basic voltage and current measurements to more complex tasks such as resistance and temperature measurements with appropriate sensors.

The multimeters also stand out with their advanced data logging capabilities. The Fluke 2645A, for instance, can store up to 10,000 readings, allowing for extensive data collection and analysis without the need for constant monitoring. This is beneficial for long-term studies or processes that require continual oversight.

Connectivity is another key characteristic. Both the 2640A and 2645A support USB and RS-232 interfaces, which enable easy integration with computers and other devices for seamless data transfer. This feature is important for engineers who rely on software for data analysis and visualization.

Another notable technology included in these models is the Fluke Connect app compatibility, which allows users to remotely monitor measurements from their smartphones or tablets. This capability provides added flexibility, enabling technicians to work hands-free while still keeping an eye on process measurements.

Additionally, the Fluke 2645A comes with a graphical display option, allowing users to visualize measurement trends over time. This graphical representation can be invaluable for diagnosing issues or observing patterns in data.

In conclusion, the Fluke 2640A and 2645A multimeters offer exceptional performance with their high accuracy, extensive data logging, connectivity options, and advanced visualization capabilities. These features make them indispensable tools for professionals in a variety of fields, ensuring that they can achieve reliable results in their measurement endeavors.