Masterclock
GMR
User
Manual
v2
–
2016.12
14
DRY
CONTACT
RELAY
AND
PROGRAMMABLE
RELAY
EVENT
AC
or
DC
relay
that
can
be
used
in
either
NO
(normally
open)
mode
by
connecting
to
pins
2
and
3
of
J9
or
NC
(normally
closed)
mode
by
connecting
to
pins
1
and
2
of
J9
on
the
rear
of
the
unit.
By
default:
The
relay
will
actuate
to
indicate
when
the
unit
has
lost
synchronization
(lock)
with
the
external
time
reference.
The
relay
can
be
programmed
to
actuate
at
a
single
time
(defined
as
HH:MM:SS
start
time)
for
a
specified
duration
(in
seconds)
once
per
day.
Standard
on
GMR5000
FRONT
PANEL
DISPLAY
Six
‐
digit
front
panel
LED
display
may
be
ordered
with
your
GMR1000
to
provide
the
time/date
display.
A
thirteen
‐
digit
LED
display
is
standard
on
the
GMR5000.
Caution:
No
user
‐
serviceable
parts
are
inside
the
GMR.
Please
contact
Masterclock
Support
if
you
require
service
or
repair
by
emailing
or
calling
(636)
724
‐
3666.