Johnson Controls 300 Series Manual page 78

78 Network Control Module 300 Series Technical Bulletin
Node Numbers
All network nodes connected to either the N1 LAN or the MIFN must
have a node number to identify it on either one or both of the
networks. Intelligent Fire Controller (IFC) panels, Intelligent Network
Annunciators (INAs), Fire-Net NCMs, and Fire OWSs are all
examples of MIFN nodes. The IFC panels and INAs are connected
only to the MIFN, while the Fire-Net NCM and Fire OWS are
connected to both the N1 LAN and the MIFN.
Because they connect to two networks, certain restrictions apply to the
Fire-Net NCM and Fire OWS node numbers. The node numbers for
the Fire OWS and Fire-Net NCM must:
• be within the range specified below
• be the same number on both the N1 LAN and the MIFN
IMPORTANT: The Fire-Net NCM must have network node numbers
between 70-79. A Fire OWS must have network node numbers between
150-159.
Only Fire-Net NCMs and Fire OWSs can have node numbers in the
ranges listed above (70-79 and 150-159). None of the other OWSs,
IFC panels, NCMs, or INAs can use these node numbers. However,
nodes that are exclusive to either the N1 LAN or the Metasys
Intelligent Fire Network (MIFN) can use the same node numbers. For
example, an IFC panel on the MIFN only can use the same node
number as an NCM that is connected to the N1 LAN only.
If you already have network nodes that are within the designated
ranges for the Fire-Net NCM and Fire OWS, you may need to change
their node numbers. Refer to the appropriate technical bulletin for how
to change that node's number.
To set the node number of the Fire-Net NCM, use the settings on the
switches of the N1 LAN ARCNET board. Because the
N1 LAN ARCNET board is preinstalled in the Fire-Net NCM, it is
most convenient to set the switches when you are installing the
MIB-OWS board into the Fire-Net NCM. See the Installing the
MIB-OWS Board section for details on setting the S2 switches.