Johnson Controls METASYS VAV110 Technical Manual page 48

N2 Wiring to
Companion
48 VAV Controller—Variable Air Volume Controller
A hardware connection between the N2 Communications Bus and the
Companion PC/Panel/LTD is required to service N2 devices. An
MM-CVT101-0 Communications Converter is required to network to the
PC Companion. See Figure 21 for terminal locations. Refer to the Metasys
Companion Technical Manual (FAN 628.1) for information specific to the
CVT101 or Companion Panel/LTD.
RS232-to-N2Bus
Converter
(N2 Bus Terminal)
REF
N2 -
N2 +
Figure 21: Connecting the VAV Controller to Companion
Companion PC Version
R
AN ALO G IN PU T S BIN ARY IN PU T
T O
1 2 3 4 5 6 1 2 3 4
ZON E
S TA T
Z BU S
1 2 3 4 5 6
AN ALO G IN PU T S BIN A RY CO M
C O M M O N
1 2 3 4 5 6
AN ALO G IN PU T S BIN ARY IN
DSI
N2 REF
N2 -
N2 +
BIN A RY OU TP U T
1 2 3 4 5 6 7 8
BIN A RY O UT PU T S
To
N2 +
Next
N2 -
N2
N2 REF
Device
n2wire2a