iDU series User Manual
TBB Power Co.,Ltd
5
4.
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4.1 Wiring diagram
4.2 Port definitions
No. Label
Description
No.
Label
Description
1
L
Live line of AC input
12
T1
Temperature sensor port
2
PE
Earth line of AC input
13
T2
3
N
Neutral line of AC input
14
HK
Battery equilization
interface
4
NC
Reserved
15
HG
5
HOK
Dry contacts
16
VG
6
VL
17
B-
Battery-
7
VH
18
B+
B
8
POK
19
VO-
DC outputs
9
VC
20
VO-
10
A
RS485 port
21
VO+
11
B
22
VO+
5
T1 T2
6
7
8
9
10 11 12 13
14 15
16 17
18 19
20 21
4
3
2
1
22
NC HOK VL VH POK VC
A
B
HK HG VG B-
B+
VO-
VO+ VO+
VO-
Load
Battery
K2 K3
Temperature
sensor port
Signal output
23
24
25
26
CHG DCHG EQ Fault
27
28
ON
EQ
Battery
OFF
ON
OFF
N
AC_N
PE
L
Fuse
AC_L
Communication port
