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376105C-01
Aug16
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NOx Sensor Controller Module Connector
Type of connector .............................................Hirschmann MLK 872-860-501
Number of pins .................................................5
Connector pin assignment
Pin 1 ..........................................................Battery [red]
Pin 2 ..........................................................Ground [black]
Pin 3 ..........................................................CAN Low [blue]
Pin 4 ..........................................................CAN High [orange]
Pin 5 ..........................................................Address Switch [purple]
Pulling Pin 5 to ground changes the CAN transmit ID of the Sensor Control Module so that
two NOx Sensor Control Modules can be added to the same network. Sensor Control Modules
with Pin 5 floating are Ch. 1 and Sensor Control Modules with Pin 5 grounded are Ch. 2.
Wiring Harness
Figure 4.
2-Sensor Harness
NI-CAN
Device
S
en
s
or
Control Mod
u
le
12 V DC
Power
Su
pply
S
en
s
or
Control Mod
u
le
S
en
s
or 1
S
en
s
or 2
1. B
a
tt
2. Gnd
3. CAN-Low
4. CAN-High
1. B
a
tt
2. Gnd
3. CAN-Low
4. CAN-High
CAN-Low .2
CAN-High .7
CAN-Gnd .6
B
a
tt .9
5. Add.
S
w
B
a
tt
Gnd
Add.
S
w
• E
a
ch leg from the j
u
nction i
s
4 ft
• B
a
tt
a
nd Gnd wire
s
a
re 18 AWG, CAN wire
s
a
re 20 AWG
• 120
Ω
re
s
i
s
tor
s
a
cro
ss
CAN-Low
a
nd CAN-High ne
a
r
s
en
s
or 1
a
nd 2
• NI-CAN device
s
connect to the h
a
rne
ss
thro
u
gh
a
fem
a
le DB-9 connector
• CAN-Gro
u
nd i
s
connected to Gro
u
nd ne
a
r j
u
nction
• Add.
S
w
s
ho
u
ld be connected to gro
u
nd
a
t the power
su
pply
