VAR8-ACU and Variants - Installation Guide
1 Installation
The following drawing shows the standard base model VAR8-ACU connectors as well the Interface
Expansion Board connectors. Note that the Interface Expansion Board (EXP8) is an optional item.
Section “
2 Connections
” on page
11
describes the signals in each connector.
Figure 1
VAR8-ACU/Variant
Connections
D
O
W
N
ST
R
E
AM
UPS
T
REA
M
NETW
OR
K INTERF
AC
E
C
A
R
D
(
A
N
IC
8)
V+NB
ACO1
V+NB
IN+
GND
0V
INPUT
4
DXP
V+NB
IN
P
U
T
6
V+
0V
DXN
IN+
IN-
DXP
DXN
DXN
DXP
DXN
DXP
V+
0V
IN+
IN-
DXN
V+NB
V+
0V
IN-
IN+
DXP
ACO2
SN2
IN
P
U
T 2
PTT2-
0V
V+
IN-
IN+
PTT2+
0V
DXP
DXN
V+
IN-
IN+
V+
PTT1-
PTT1+
SN1
IN-
IN+
C1+
GND
V+
5-
8
A-
A+
CANH
CANL
RTS
CTS
CTRL
DXN
GND
COM
NC
NO
1-
4
GND
RX
TX
DXP
C5+
C1-
C4+
C4-
C3+
C2+
C3-
C2-
C5-
AUD
IO
OUT
P
UT
S
INPU
T 3
INPU
T
5
INPUT 1
SERIA
L
RS2
3
2
C
O
NT
RO
L
CO
N
T
A
C
T
S
5-1
FA
U
LT
RE
LA
Y
SE
R
IA
L
RS23
2
AUD
IO
OU
T
P
UT
S
AUD
IO
MO
N
CA
N
BUS
SE
R
IA
L
RS
485
1 FAULT
2 FAULT
3 FAULT
1 FAULT
2 FAULT
3 FAULT
DOWN / UP
V+NB
V+
DXP
0V
DXN
IN+
IN-
V+NB
DXP
V+
DXN
0V
IN+
IN-
SCRN
DXP
DXN
BUS1+
BUS1-
BUS2+
BUS3-
BUS3+
BUS2-
GND
DXP
DXN
BUS1+
BUS1-
BUS2+
BUS3-
BUS3+
BUS2-
INPUT 8
INPUT
7
MU
S
IC
12
34
POWER
V+
V+
GND
GND
ON
C10+
C7-
C7+
C6-
C6+
C9+
C9-
C8+
C8-
C10-
CON
T
ROL
CON
T
ACT
S
1
0
-6
C20+
C17-
C17+
C16-
C16+
C19+
C19-
C18+
C18-
C20-
C
O
NT
ROL
CON
T
ACTS 20
-1
6
C15+
C12-
C12+
C11-
C11+
C14+
C14-
C13+
C13-
C15-
C
O
NT
RO
L
CON
T
A
C
T
S
15-
11
OUT1-A-
OUT3-A+
OUT4-A-
OUT4-A+
OUT2-A-
OUT1-A+
OUT3-A-
OUT2-A+
0V
A OU
TPUTS
1-
4
OUT5-A-
OUT7-A+
OUT8-A-
OUT8-A+
OUT6-A-
OUT5-A+
OUT7-A-
OUT6-A+
A O
U
T
P
U
T
S
5
-8
OUT1-B-
OUT3-B+
OUT4-B-
OUT4-B+
OUT2-B-
OUT1-B+
OUT3-B-
OUT2-B+
0V
B OU
TPUTS
1-
4
OUT5-B-
OUT7-B+
OUT8-B-
OUT8-B+
OUT6-B-
OUT5-B+
OUT7-B-
OUT6-B+
B OU
TPUTS
5-
8
INTERF
AC
E
EXP
A
N
SION
B
O
AR
D (
E
XP8)
DIP SW
DIP SW
is u
se
d fo
r mainte
na
nc
e o
nly.
In
o
per
ati
o
n,
a
ll
sw
itc
h
es
sh
ou
ld
be
on
the
O
F
F
po
si
tion
, as
s
how
n i
n
th
e dr
aw
ing
.
(INPUT 2)
(INPUT 1)
!
Issue: 02 complete, approved
Page 5 of 22
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