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Campbell SDM-CD16 Instruction Manual page 9

Control port expansion module with drivers

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SDM.CDI6
CONTROL PORT EXPANSION MODULE WITH DRIVERS
Figure
1.
SDM-CD16 Face Panel
1.
FUNCTION
2.
SPECIFICATIONS
The SDM-CD'|6 has
16
digital
control ports
with
Compatible
dataloggers:
CR10, 21X,
CR7.
drivers
and
is
compatible
with CSI's
CR10, 21X
and
CR7
dataloggers
(refer
to
Figure
1).
Each
Operating
voltage:
12
VDC nominal
(9
to
18).
pon can be controlled by
a
datalogger or
controlled manually with an override
toggle
Current drain
at
12
VDC: 6
mA quiescent;
'l1
mA
switch.
Each
port can
be
thought of
as a
switch
per active LED (switch on or auto
active);
1.4 mA
to ground; closed when active, open
when
per active
poft with switch
off.
inactive. The primary function
is
to activate
DC
powered external relays, solenoids,
or
resistive
Maximum power per port
from external
relay,
loads under
datalogger
control.
solenoid, resistive
load:
40 VDC, 0.5
Amps.
The SDM-CD16
is a
synchronously
addressed
Solid state
FET
protection: Thermalfuse
datalogger peripheral. Datalogger control
ports
increases in resistance
at
1
Amp, allows no
1
,
2,
and
3
are used
to address the
SDM-CD16
current flow after
2
Amps
or
125
oC;
clamping
then
clock out the desired state of each
of
the
'16
diode prevents inductive arcing.
control
ports.
Up
to
16
SDM-CD'l6s may
be
addressed, making it possible
to control
a
Total length of
connecting
cable:
20
feet
(CR10,
maximum
of
256 ports
from the first
three
21X) 600
feet
(CR7)
datalogger control ports.
Toggle
switch: ON/OFF
manual
override;AUTO
l/O
Instruction
104
is used by the
21X
and
CR10
for
datalogger control.
to
controlthe SDM-CD'|6.
The
CR7 uses
lnstruction
29.
Ensure
that the
datalogger
Physical: 1.7'(H),
7"(L),42"W
1
lb.
contains the
appropriate Instruction prior to
system deployment.
C
9929122999999?97
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SDM-CD1
6
CONTROL
PORT EXPANSION WITH
DRIVERS
z.
I
OUTPUT
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