Page 52
P O W E R I N G T E C H N O L O G Y
Document Number: MS0031-MAN rev. 7
guardian_access_ms31-man-rev7-0521.indd
PBDU Schematic
See Block
diagram
0V Load
0V Battery
- Load 1
- Battery n
- Load n
- Battery 1
LVD
- PLD Load 1
- PLD Load n
Optional PLD
B1-1
B2-1
B3-1
B4-1
B5-1
B6-1
F1-1
F2-1
Fn-1
6
6
J1
J3
J2
J4
BM0684
MH1
MH7
1
2
3
4
1
2
Fn-1
Fn-1
Fn-1
Shunt
96
XC1
Internal connections
board
1 0V
2 -48V
XC9A Sh1 Dis1
XC9B Sh1 Dis2
XC7 Com.
8
XC8
8
-48V 2
0V 1
System
voltage out
RS232
XC2
50
XC3
XC5 Door alarm
1
1
2
2
6
6
XC4
8
XC10
CAN
Surge arrester alarm XC6
Only for Alarm Relay Board
0V Bus
-48V Bus
-/A1
+/A2
-/A1
+/A2
Note1:
XC9, XC10, XC11, XC12, XC13
available only on Alarm relay board
50
XC1
3
2
1
Al
a
rm
1
6
5
4
Al
a
rm
2
3
2
1
Al
a
rm
3
6
5
4
Al
a
rm
4
XC6
XC5
6
5
4
Multi purpose
1-6
XC2
50
XC1
3
2
1
6
5
4
XC3
3
2
1
Multi purpose
7-12
6
5
4
3
2
1
XC4
T
e
m
p
1
T
e
m
p
2
+5
V
1
+5
V
2
G
N
D
G
N
D
4
3
2
1
XC7
D
ig
In
1
D
ig
In
2
+5
V
G
N
D
4
3
2
1
XC8
D
ig
O
u
t
1
D
ig
O
u
t
2
-S
y
s
te
m
V
o
lta
g
e
N
C
C
N
O
XC12
8
RS485
XC13
8
RS485
Alarm relay board / External connections board
2
1
6
5
4
3
K1
K2
XC9
2
1
6
5
4
3
K3
K4
XC10
2
1
6
5
4
3
K5
K6
XC11
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
N
C
C
N
O
+
S
y
s
te
m
V
o
lta
g
e
