Murrelektronik Review Questions For Passive Distribution Systems

Discrete is the traditional terminal block, point-to-point wiring.

Passive is a modular-concept that provides Input and Output conectivity only with no ability to perform logic functions.

Distributed I/O is baically Passive I/O but with intelligence to perform logic functions - such as in a programmed PLC - built in.

Serial would apply to any "fieldbus" technology such as DeviceNet, Modbus, RS232, RS485, Profibus, EtherNet/IP, etc.

Any OEMs that still wire their machines with traditional discrete wiring are excellent customers for this technology. Any new application/installation at a user account would also be a good prospective customer.

So remember: MANY PEOPLE DON'T KNOW WHAT THEY WANT UNTIL YOU SHOW IT TO THEM! There's always the chance that some of your prospective customers are not aware that Murr's Passive Distribution technology exist.

If you clicked on the link contained in the question and then checked an individual IDC connectors specifications you would see that IP rating is 67 when plugged in and screwed down (EN 60529).

While Junction Boxes are the number one indicator that Murr's Passive Distribution blocks are applicable, cable trays and sensors, as well as valves and other I/O devices clumped together are also good very good indicators.

The contact layout for Murr's female M12 connectors typically requires that Pin 2 is for (N/C)/(S2) and Pin 4 is for (N/O)/(S1)

This can be found on the inside cover of Murr's Passive Connectivity Overview (PDF) that was attached to the email that contained the link to this quiz. This is a great document to email prospective customers of Murr's Passive Distribution technology!

Only Murr offers the handy torque wrench for applying proper connectivity every time! You can SEE the connector being turned as you MECHANICALLY "wrench" it on or off, and you can HEAR it 'click' when it has been tightened to the required torque setting.

Passive wiring is best described as pass-through discrete wiring that allows connectivity to a variety of Input and Output devices, nothing more. To "control" signals would require a PLC or other device that is user-programmed with a sequence of operation to allow operation of an application or a process.

This can also be found in Murr's Passive Connectivity Overview (PDF).

Murr's 5-pole connections have up to 2 signals per port and most 4-pole connections have 1 signal per port. The exception is the Exact8 series that has 4-pole suppression but still offers 2 signals per port for a total of 16 signals in their 8-port version. This can be found on page 3.12.6 of your hard-cover Murr master catalog.

Serial communication speed is determined by the networks specific data transfer rate. That is further reduced by the amount of "traffic" created by devices on the network.

But discrete point-to-point wiring transfers its signal(s) virtually instantaneously since each individual wire transmits electrons in metal at about 3000 km per second. To put that in perspective, the speed of light is about 300000 km per second.

This can also be found on page 3.13.6 of your hard-bound Murr master catalog.

The most cost-effective EXACT12 distribution box for customers needing modular connectivity of the distribution block is the Plug Terminals and Prewired Cap & Cable. This option provides a convenient solution for connecting various components with plug terminals and prewired cap and cable, reducing the need for additional connectors or cables. This helps to streamline the installation process and minimize costs for customers.