Johnson Controls METASYS VAV110 Technical Manual page 47

N2 Wiring to the
Network Control
Module
To
Next
N2
Device
R
ANALOG INPUTS BINARY INPUT
1 2 3 4 5 6 1 2 3 4
Z BUS
1 2 3 4 5 6
ANALOG INPUTS BINARY COM
COMMON
1 2 3 4 5 6
ANALOG INPUTS BINARY IN
DSI
N2 REF
N2 -
N2 +
Note: Since the VAV Controller is a self-terminating device, end-of-line termination for the
N2 Bus is not required.
Figure 20: Connecting the VAV Controller to an NCM
Table 14: Terminal Locations
TB1 Terminal Function
Chassis Ground
Soft Ground
N2B Ref Ground
Soft Ground
-N2B Connection
+N2B Connection
BINARY OUTPUT
TO
1 2 3 4 5 6 7 8
ZONE
STAT
(TB1 on C omm unication
Term inal Board)
HR D
BINARY OUTPUTS
GRD
SFT
GRD
REF
N2 +
N2 -
N2 R EF
Number
6
5
4
3
2
1
VAV Controller—Variable Air Volume (VAV) Controller 47
NC U
SFT
6 3
REF N2- N2+
GRD
5
2 N2-
4 1
N2+
VAV Connection
None
None
AREF
None
N2 Bus: N2-
N2 Bus: N2+
n2wire1a