Pendulum GPS-12, User Manual

Page: 22 / 62

ceiver can be shifted in time from this menu. If
you don’t know the exact delay, assume an
approximate value of 5 ns/m as a rule of thumb.
Alarm Menu
In this menu you can watch and manage the
alarm log. You can also set up the alarm behav-
ior.
Scroll through the log entries by selecting Log .
Then press ENTER or
u
.
If you press ENTER or
u
once more, you are
given the opportunity to erase the log entries.
In the alarm Setup menu you can choose among
a number of alarm sources and decide their
alarm level, i.e.
urgent , non-urgent , or no
alarm .
n
Alarm Outputs
Two relay-controlled alarm loops, one for ur-
gent and one for non-urgent situations, are
available via a D-sub connector on the rear
panel. The normally closed (NC) contacts will
open when the respective alarm criteria are
met. Figure 3-2 shows the pin configuration.
Power Source Menu
In this menu you can see what power options
are installed and the current status of those op-
tions.
Note: When the unit is about to enter
Standby mode, and the battery op-
tion is installed, the screen below will
appear.
Only one of the alternative DC power supply
units, Option 77, Option 78 or Option 78/HS,
can be installed. All of them can serve as UPS
devices, i.e. you can have external (Option 77)
or internal (Option 78 and Option 78/HS) bat-
tery backup for the AC supply. Option 77 and
3-6 User Interface
Using the Controls
ALARM LEVEL CIRCUIT (NC)
URGENT Pins 8-9
NON-URGENT Pins 1-6
Figure 3-2 Alarm connector pin
configuration.