X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
3
3
4
4
R
R
E
E
V
V
E
E
where <timeout> is in seconds between 0 and 86400 (1 day). This number sets the delay from when
the time error threshold is exceeded and when the Timeout fault occurs.
Minor Alarm: <en>
Time Error:
<TE status>
<TE status> can be "OK" or "Fault" and indicates that the estimated time error (available through
Function 13) exceeds the alarm time error threshold.
The time error threshold is set by the next dialog:
Time threshold
<threshold> ns
where <threshold> is in nanoseconds. If the threshold is set to 0, then the Time Error fault occurs when
the clock initially determines it is unlocked.
Minor Alarm: <en>
Tracking:
<tracking status>
<tracking status> can be "OK" or "Fault". This status item generally indicates whether the unit is
receiving and decoding satellite information.
Minor Alarm: <en>
Tuning:
<tuning status>
<tuning status> can be "OK" or "Fault". If the oscillator is near the limits of the range that it can be
steered by the DAC, then <tuning status> becomes "Fault" indicating that the oscillator may need to be
checked and readjusted soon.
Minor Alarm: <en>
NV Battery:
<bat. status>
<bat. status> can be "OK" or "Low". The battery B1, which is used to maintain non-volatile information
in RAM when the power is off, is checked at power-on. If it is below about 2.0 volts, a "Low" is
indicated. The battery should then be replaced. This message may also indicate that GPS-XL jumper
JP1 has been left off, disconnecting the battery.
Minor Alarm: <en>
Acquisition:
<acq. status>
<acq. status> can be "OK" or "Flt". "Flt" indicates that the unit is still in the process of acquiring initial
lock, and that it has not yet locked since power-on. "OK" indicates that it has locked at least once,
regardless of whether it is currently locked.
Led Blink::
<resp>
Summary of Contents for 151-600
Page 2: ...Model XL DC Serial Number__________________ September 15 1997 Revision E...
Page 4: ......
Page 27: ...X...
