120
Technical Specifications and Operating Parameters
•
System Delays
: Offsets the time delay in nanoseconds for the GNSS signal to pass from the antenna
to the GNSS receiver.
•
Programmable Pulse
: Sets the mode, interval and pulse width for programmable pulses. Also has
an auxiliary IRIG-B mode, independent from the main IRIG-B setting.
•
IRIG Time Data
: Sets the time zone and IEEE C37.118.1 mode.
•
Event/Deviation
: Set to either Event or 1 PPS Deviation.
•
Option Control
: Configures the option board function in the clock, if installed.
•
C Display Format
: Configures the date format for the large display on Model 1201C clocks to
MM/DD/YY or DD.MM.YY.
12.6.3
Display
•
Model 1201B/C includes a 2-line by 20-character LED backlit LCD
•
Model 1201C also includes a six-character, 20mm LED time display
12.6.4
Display Functions
•
Time and Date: UTC or Local, Year-date, Day-of-year
•
Option control and monitoring
•
Position: latitude, longitude and elevation
•
Event time and 1 PPS deviation
•
Timing: learn and normal mode; time quality; event/deviation
•
Status: clock serial number; power supply; EEPROM; fault; option details
•
Configuration: enable/disable
•
Clock accuracy, estimated uncertainty
•
Setup date format of large display on Model 1201C.
12.6.5
Annunciators
Normal (green)
Learn (yellow)
Unlocked (red)
Alarm (red)
Operate (green)
Power A (green)
Power B (green)
Fault (red)
Table 12.4: Annunciator LEDs
12.7
Physical Specifications
12.7.1
Dimensions
Model 1201B/C:
430 mm
×
44 mm
×
280 mm (16.9 in
×
1.7 in
×
11.0 in)
Antenna:
77 mm
×
66 mm (3.05 in
×
2.61 in)
Table 12.5: Clock and Antenna Dimensions
Summary of Contents for 1201B
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