Appendix A: Electrical Pin Descriptions
INSTALLATION AND USER GUIDE
38
ISA module: IR Port
The
following
figure
shows
the
3.5
mm
(1/8”)
IR
connections.
Figure 9. IR-port connector (IR-receiver version)
The
following
table
describes
the
IR
interface
pins
and
their
corresponding
signals.
Table
18.
IR
‐
port
Pins
and
Signals
Pin
Signal
Description
(IR
input
mode)
Signal
Description
(IR
output
mode)
Tip
IR
data
input.
IR
‐
LED
emitter
output.
Ring
Signal
ground.
Signal
ground.
Sleeve
+12VDC
power
for
IR
receiver.
Important
Note:
An
IR
‐
receiver
usually
connects
with
a
stereo
‐
phono
plug
(3
contacts:
TIP,
RING,
SLEEVE).
This
is
the
connector
shown
above.
However,
an
IR
‐
LED
emitter
typically
uses
a
mono
‐
phono
plug
(2
contact:
TIP,
SLEEVE).
This
type
of
connector
is
similar
to
the
picture
above,
except
there
is
no
separate
RING
contact.
The
SLEEVE
contact
is
simply
longer.
Note:
The
IR
capability
is
designed
into
the
hardware,
but
not
currently
supported
by
the
firmware.
Check
with
Magenta
Research
for
applicable
firmware
updates.
3.5mm
IR jack
