CHAPTER FOUR
Table 4-1
RS-232 ASCII I/O Command Table
ASCII ID
Character
HEX
Character
Description
` 60 Symmetricom Firmware Version.
c 63 UTC Sync.
d 64 GPS Sync.
e 65 Print Frequency Offset.
f 66 Print Time, Status, Error Code, and SV Number.
= 3D Print Year (4 digits), Time, Status, Error Code and SV Number.
i 69 Print Position.
j 6A Clear Event Data.
k 6B Print Event Data.
p 70 Request One Event Log Data.
l 6C Enable Event Log.
m 6D Disable Event Log.
r 72 Select Mode.
s 73 Enable Time Interval.
t 74 Disable Time Interval.
u 75 Request Time Interval.
x 78 Request Elevation Mask Angle.
y 79 Enter Elevation Mask Angle.
z 7A Enable Discipline.
{ 7B Disable Discipline.
} 7D Enter Position.
~ 7E Enter DAC Value.
N 4E Request DAC Value.
Q 51 Enter Number of Position Averages.
| 7C Enter Local Time Offset.
T 54 Enter Cable Delay.
U 55 Request Cable Delay.
W 57 Re-synchronize Minor Time.
X 58 Select Default Values.
Y 59 *External Frequency Measurement – Select Input Frequency
Z 5A *External Frequency Measurement – Enable/Disable
[ 5B *External Frequency Measurement – Request Data
* Models ET6000 and ET6010 only.
The remainder of Table 4-1 is continued on the following page.
4-2 ET6xxx ExacTime GPS TC & FG (Rev C) Symmetricom Inc