Assemble the COM Express system
20
6. Connect
the
power
switch
and
LED
indicator
cables
to
the
front
panel
I/O
header.
Pin
#1
is
marked
with
an
asterisk
(*)
on
the
CR100
carrier
board.
Note:
The
CR100
carrier
board
does
not
support
the
power
LED
indicator.
If
you
have
a
custom
carrier
board
that
supports
this
function,
make
sure
that
you
connect
the
cathode
and
anode
of
the
power
LED
cable
correctly.
Connect external I/O devices and chassis components
Connect
external
devices
to
the
connectors
on
the
rear
I/O
panel
of
the
CR100
carrier
board.
1. Connect
the
keyboard
and
mouse
to
any
of
the
USB
ports.
2. If
you
have
a
CR100
‐
2DVI
carrier
board,
connect
one
or
two
monitors
according
to
your
needs.
Assuming
you
have
left
the
jumper
in
the
DVI
output
selection
header
to
enable
VGA
output
on
the
secondary
DVI
‐
I
connector:
•
Connect
a
digital
video
monitor
to
the
primary
DVI
‐
I
connector.
•
Connect
a
VGA
monitor
to
the
secondary
DVI
‐
I
connector.
If
the
VGA
monitor
cable
has
a
DB15
connector,
you
will
need
a
DVI
‐
to
‐
VGA
adaptor
as
shown
below
(RadiSys
product
code
CE
‐
DVI
‐
VGA).
3. If
you
have
a
CR100
‐
PCIE16
carrier
board,
connect
one
or
more
displays
to
the
PCI
Express
graphics
card
according
to
the
instructions
provided
with
the
graphics
card.
Function
Cable setting
Hard disk drive LED
Pins 1 and 3:
• 1: HDD LED cathode (to VCC, typically white in two-
wire cables)
• 3: HDD LED anode (from HD_ACT#)
Reset switch
Pins 5 and 7
Power-on switch
Pins 6 and 8
Speaker
Pins 10 through 16:
• 10: 5V supply
• 12: Audio signal (speaker)
• 14: Not connected
• 16: Audio signal (speaker)
1
19
2
20
DVI side of adaptor
VGA side of adaptor
