Campbell Hausfeld SDM-CAN - Manual (Page 13)

Section 2. Installation
Transmission of
CAN data is
hardware
disabled
by default. To
enable transmission,
move the jumper to
the TX enable
position.
SDM-CAN PCB
Once the case lid
has been removed.
OBSERVE ANTI-
STATIC
PRE
Figure 2-1 SDM-CAN Internal Jumpers
Figure 2-2 SDM-CAN Isolation enabled (default)
This jumper block
is used to select
isolated or non-
isolated CAN-Bus
interface. The
jumper block can
be removed and
rotated so that the
red bar is nearest
to the mode arrow
head. The default
is for isolation
enabled.
The CAN-Bus
termination
impedance is
disabled by default.
If you need the bus
to be terminated,
then move the
jumper to the 120R
IN position.
CAUTIONS.
The DC-DC converter is off by
default. This will reduce power
consumption from the +12V
supply but means that the isolated
circuits must be powered
externally. To enable the DC-DC
converter move the jumper to the
DC-DC ON position.
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