Masterclock
GMR
User
Manual
v2
–
2016.12
32
OUTPUT
CONTROL
>
NENA
The
ability
to
decode
and
generate
NENA
(National
Emergency
Number
Association,
otherwise
known
as
the
911
system)
messages
is
standard
on
GMR
models.
To
configure
the
NENA
input,
mimic
the
NEMA
Input
instructions.
To
configure
the
NENA
output
settings,
follow
these
instructions:
1.
On
Device
Settings
click
the
Output
Control
button.
2.
Click
on
the
NENA
button
to
show
the
NENA
Time
Stamp
Output
window.
Select
your
preferred
format
from
the
four
choices.
3.
Select
the
output
port
for
the
messages.
4.
Click
on
Port
Settings
to
configure
the
port.
The
settings
you
make
here
must
be
put
into
every
client
that
the
messages
go
to.
5.
When
done
click
on
every
OK
button
until
you
get
to
the
Device
Settings
window,
then
click
Save
.
OUTPUT
CONTROL
>
TRUETIME/KINEMATICS
This
is
standard
on
GMR
models.
There
is
no
provision
for
input.
This
output
and
others
share
a
port,
so
only
one
can
be
enabled
at
once.
OUTPUT
CONTROL
>
PROGRAMMABLE
PULSE
OUTPUT
This
button
is
visible
or
enabled
only
if
a
PPO
module
is
installed.
When
a
PPO
is
present,
the
GMR
can
provide
an
accurate
pulse
for
specialized
applications.
A
programmable
pulse
output
option
is
available
for
separate
purchase.
This
pulse
output
can
be
programmed
with
a
pulse
interval
to
occur
from
every
100
μ
s
to
up
to
3
days.
Pulse
width
is
programmable
from
10
microseconds
to
100
milliseconds.
By
default,
the
GMR5000
timing
interval
will
be
a
1
pulse
per
minute
(1PPM),
rising
edge,
50mS
[typical]
wide
(active
high)
5V
TTL
pulse.