data hub compatible with omnipro II

[kaohao]

Does anyone know if the Elk m1dbh is compatible with the omnipro II or if there is a similar device that is?

http://www.elkproducts.com/product-catalog/elk-m1dbh-m1-data-bus-hub


Thanks!

 

[alarmguy]

It is NOT compatible and I do not think Omni has a similar device.

 

[kaohao]

Do you have any recommendations for neat daisy chaining at the controller location? All of the keypads and expansion enclosures are homeruns to the controller.

 

[alarmguy]

There are many different types of Terminal Blocks out there that could be used.

 

[Del91574]

It is NOT compatible and I do not think Omni has a similar device.

Not really true.
 
The issue would be the OPII does not use a 485 topology, so either extra conductors or jumpers would be needed to make it work. If the OPII consoles have cat X cable, it's easy to do. If not, the effort to use just RJ jacks is really not worth IMHO, otherwise there's no reason why the voltage and data A/B connections couldn't be used as a passthru network, assuming the termination resistor was omitted from the install.

If 4C is used, RJ's could be used with a suitable connection block, however, I still think the effort expended to accomplish this really isn't worth it.

 

[kaohao]

There are many different types of Terminal Blocks out there that could be used.

 

[kaohao]

What are some of your faves? I'm a total rookie.

 

[Del91574]

The question I'd pose is how many consoles do you have? If you have more than 4, then I really don't see the added need for expense, labor and effort to move the cabling to another method. It's really not going to gain you anything.
 
2 cables under each side of the clamping plate would be fine in my book and really not require any further items for cable management.
 
Being a pro, I think a lot of people create problems for items that don't really require solutions, and in turn, create further complexities and failure points.

 

[pete_c]

Being a pro, I think a lot of people create problems for items that don't really require solutions, and in turn, create further complexities and failure points.
 
+++
 
:rockon:

 

[ano]

Being a pro, I think a lot of people create problems for items that don't really require solutions, and in turn, create further complexities and failure points.

If that wasn't true, 95% of the posts here would be gone.

 

[kaohao]

4 keypads and 4 expansion enclosures

 

[kurtmccaslin]

You might look at the Omni power hub.   It can supply power and acts as a data hub for up to 8 keypads.    If you dont need the additional power supply, then I would just go with a terminal strip as already suggested.

 

[kaohao]

Thanks bros!

 

[kaohao]

I have punchdown blocks rated 100mhz...can those be substituted for terminal strips? Is there a diagram or photograph of this type of terminal strip wiring?

 

[Del91574]

Um, with 8 conductors, honestly, I would twist and use orange wire nuts and pigtail to a piece of 18/4, hell even breaking down into 2 pieces of 18/4 (KP's and expansion) and then split the conductors on each side of the terminal block to facilitate even clamping, that would be my suggestion before adding a lot more work and complexity.
 
Punchdown blocks aren't the be all-end all. A good way to add a failure point if stranded wire is used.