Arbiter Systems 1088A, Руководство по эксплуатации

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2.2 Front Panel Controls and Indicators 7
•
ON LINE : Indicates the active clock, especially when using the Option 18, Redundant
Interface, when two clocks are interconnected.
• OUT OF LOCK : Illuminates when the clock has not yet synchronized, or has lost synchro-
nization, with the GPS.
•
FAULT : Indicates when a GPS receiver or clock fault occurs. See Table 10.1 for list of fault
conditions.
2.2.3 Command Key Definitions
Table 2.2 subdivides all of the functions of the eight keys by name and function. Some of the keys
have alternate functions as well.
Key Function Alternate Function
TIME time and date NA
POSITION view latitude, longitude and
elevation NA
EVENT or DEVIATION view event or deviation NA
STATUS view clock and receiver status NA
SETUP enter setup mode move cursor left in data entry
mode
UP select upper value increase numerical value
DOWN select lower value decrease numerical value
ENTER install selected value move cursor right in data en-
try mode
Table 2.2: Command Key Definitions
2.2.4 LCD Display
The Model 1088A/B series clocks contain a liquid crystal display (LCD), which provides a
20-character by 2-line readout.
The readout displays instrument status, time, position and
event/deviation data. The readout is also used to display the current configuration of operation
parameters.
2.2.5 Front Panel Keys
View various functions using the four upper keys, and configure of operational parameters using
the four lower keys on the front panel. However, using an RS-232 command, you can control the
operation of the keypad and display (lock, enable, blank). Refer to Section 9.2.5, in the Serial
Communication and Command Set, for a detailed description of RS-232 commands to control the
front panel. The front-panel pushbutton keys are described below.