Johnson Controls Metasys N2 User Manual

18
Network Communications—N2 Communications Bus
Six sample layouts of the N2 Bus are shown in Figures 4 through 9. Also
shown are the proper End-of-Line (EOL) termination points. The layouts
are:
• standard N2 layout
• N2 layout with NCU in the middle
• N2 layout with a repeater
• N2 layout with branched repeaters
• N2 layout with fiber modems
• N2 layout with branched fiber modems
Figure 4 shows a network with two OWSs and two NCUs. One separate
N2 Bus segment is externally wired from each NCU.
Self
Termination
N2 Bus
5-slot NCU
1-slot NCU
Operator
Workstation
1-slot NEU
N2
EOL
Out
ASC
N2
EOL
Out
2-slot NEU
One
N2
EOL
In
(ILC Shown)
Operator Workstation
N1
EOL
In
N1
EOL
In
NCM's
N2
EOL
In
N1
EOL
Out
LAYOUT1
N1 LAN
N2 Bus
N1
EOL
Out
N2
EOL
In
ASC
(UNT Shown)
Figure 4: Standard N2 Layout
Sample
Layouts

Johnson Controls Metasys N2 Specifications

General

Brand	Johnson Controls
Model	Metasys N2
Category	Cables and connectors
Language	English