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  1. Thread: hvacpro

    by steves4
    Replies
    14
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    1,018

    Both products mentioned in this thread, 485TBLED...

    Both products mentioned in this thread, 485TBLED and S2485USB work really well. We use both in our test lab environment for accessing the N2 bus on a regular basis.
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    You're welcome. I'm glad that we could be of help.

    You're welcome. I'm glad that we could be of help.
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    Confirmed. You do need to power cycle the unit...

    Confirmed. You do need to power cycle the unit after changing the address switches.
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    2,273

    Everyone else has given you some great advice....

    Everyone else has given you some great advice. Many times issues like this are resolved by going back to basics and checking the details. We work with both Facilitator and Metasys branded devices in...
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    It sounds like you are getting some great advice....

    It sounds like you are getting some great advice. If the above actions do not bring the devices online then start looking towards a possible wiring problem with the N2 bus or a repeater on the bus...
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    267

    I tried to edit my last post but somehow it...

    I tried to edit my last post but somehow it failed. Let me try this way.

    Controlgeek is correct. My contact info is in my profile I can send you additional information about the technology and the...
  7. Replies
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    267

    Since we wrote the code to implement our BACnet...

    Since we wrote the code to implement our BACnet IP interface we had a lot of flexibility. NCM Transactions (yes, N2 transactions) can participate in the BACnet priority array mechanism so that you...
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    Controlgeek is correct. My contact info is in my...

    Controlgeek is correct. My contact info is in my profile. I recently wrote a blog article about an interim solution for "Passthrough" support and we are close to offering an on-board "Passthrough"...
  9. Thread: New to JCI

    by steves4
    Replies
    1
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    188

    JCI has most of their documents available on...

    JCI has most of their documents available on their web site and a very effective search engine at http://cgproducts.johnsoncontrols.com/default.aspx?main.aspx&2.
  10. Thread: Niagara Summit

    by steves4
    Replies
    22
    Views
    1,571

    I'm attending for the first time this year. I'd...

    I'm attending for the first time this year. I'd appreciate any advice the veterans can provide me about how to get the most out of the event. I'd also like to talk with anyone considering...
  11. Replies
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    463

    Go to the JCI site and search for a document...

    Go to the JCI site and search for a document called N2 Communications Bus. It is ancient but all of the concepts about the N2 bus are still valid. It shows lots a good examples of how to set up a N2...
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    Contact David Hageman at Apex Custom Solutions....

    Contact David Hageman at Apex Custom Solutions. They have done a lot of work on reporting and conversions of the NCM database.
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    The N2 bus is electrically a RS-485 network. So,...

    The N2 bus is electrically a RS-485 network. So, you cannot look at one device in isolation. Definitely, the "T" tap is a problem. As several people mentioned the N2 bus needs to be strictly daisy...
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    If, after you investigate the NAE, you find that...

    If, after you investigate the NAE, you find that it can't do what you need contact S4. My contact information is in my profile. With our S4 Open: BACnet-N2 Router you can keep the NAE in place if you...
  15. I can confirm that we are working on a...

    I can confirm that we are working on a replacement for the "Passthrough" mode. It will be available with any of our S4 Open Appliances. We are shooting for next quarter. There are articles on our web...
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    202

    My copy is also dated 2001. Is there a specific...

    My copy is also dated 2001. Is there a specific question you are trying to answer?
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    455

    If you choose our S4 Open: BACnet-N2 Router for...

    If you choose our S4 Open: BACnet-N2 Router for the Johnson N2 integration each N2 device will be published as a BACnet device under a virtual BACnet Network. You'll still need to use HVAC Pro and...
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    If the field devices are N2 we can help you out...

    If the field devices are N2 we can help you out with a much cleaner integration solution. I'm looking forward to more information about these devices.
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    The DX-9100 has an operation called "Hold Mode"....

    The DX-9100 has an operation called "Hold Mode". This is about as close as you can get to the equivalent of the N2 Open Override and Release operations. This would allow you to directly manipulate...
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    If you go to JCI's web site you can download a...

    If you go to JCI's web site you can download a document N2 Communications Bus, document number 636018. This is a very old document that refers to some of the early generation Metasys hardware but the...
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    Top 10 Reasons to use the S4 Open : BACnet-N2...

    Top 10 Reasons to use the S4 Open : BACnet-N2 Router
    1. The N2 Router supports any N2 device that you will find on a N2 bus including N2 Open, VMA, Vendor Devices, Metasys Integrator, and Centaurus...
  22. Replies
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    390

    Let me know if you need any additional...

    Let me know if you need any additional information about the S4 Products. You'll find that each product has a sweet spot depending on the size and complexity of your project.
  23. Replies
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    1,849

    Changing Controls System

    I can't talk for the other solutions but the S4 Open: BACnet-N2 Router would be the enabling technology for performing an integration (your #1 above). We participate in the BACnet PlugFest so our...
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    Hello Racket, Do you know if the Siemens solution...

    Hello Racket, Do you know if the Siemens solution supports all variations of the N2 protocol?
    N2 Open: support for the UNT, AHU, VAV, Vendor (VND), Metasys Integrator (MIG)
    N2B: support for the...
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    Guys, can you bring this thread back to Randy's...

    Guys, can you bring this thread back to Randy's original question. I don't think he wants to consider a product that has been discontinued. The Tracer Communications Bridge - N2 to BACnet/IP is a...
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