Fluke 2640A, 2645A user manual Handling Token Ring Networks

Models: 2645A 2640A

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Network Considerations

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Handling Token Ring Networks

7.Failure to communicate when using the Parallel to LAN Adapter (PLA)

In some computers the speed of the parallel port hardware is insufficient to support the normal bi-directional communication used by the Silicom PLA. In these rare cases, you must force use of the uni-directional communication on this interface. You do this by adding the unidir switch to the driver.

If you are using the Trumpet TCP/IP package (isolated network), you place the unidir switch on the command line in your autoexec.bat file where the etpacket.com packet driver is loaded as follows:

The line in the autoexec.bat before the change:

c:\netdaq\etpacket.com int:60

The line in the autoexec.bat after the change:

c:\netdaq\etpacket.com int:60 unidir

If you are using the Newt TCP/IP package (General Network), you place the unidir switch on a line in the driver information area of the protocol.ini file (NDIS driver) as follows:

The lines in the protocol.ini file before the change:

[silicom] drivername=epndis$

The lines in the protocol.ini file after the change:

[silicom] drivername=epndis$ unidir

For further information on the unidir switch, see the Silicom SET User Guide.

8.Newt loads without error on a Novell work station, but cannot communicate with NetDAQ instrument.

Be sure that there is only one net.cfg file, or that the one modified by the newt installation program is also loaded by the Novell station.

Handling Token Ring Networks

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If you need to install your NetDAQ system on an existing token ring network, your network must contain a Gateway device (see “Network Interconnection Devices” in this appendix). The Gateway must support both Ethernet and Token Ring subnets, and must be capable of routing IP packets between these two subnets. You will need to consult with your Network Administrator about setting up the routing tables in the Ethernet to Token Ring Gateway device to allow proper routing of IP packets.

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Fluke 2640A, 2645A user manual Handling Token Ring Networks

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.