Arbiter Systems 1201B, Инструкции по эксплуатации

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Chapter 2
Front and Rear Panels
2.1 Introduction
This section identifies the connectors, controls, and displays found on the front and rear panels of
the 1201B/C series clocks. Take care to review all of these items prior to connecting any cables
and wires, and configuring the clock.
1201B GNSS SYNCHRONIZED CLOCK
1201C GNSS SYNCHRONIZED CLOCK
LEARN
UNLOCKED
NORMAL
ALARM
LEARN
UNLOCKED
NORMAL
ALARM
POWER A
POWER B
OPERATE
FAULT
POWER A
POWER B
OPERATE
FAULT
UP SETUP DOWN ENTER
TIME/DATE ANTENNA TIMING SYSTEM
UP
SETUP
DOWN
ENTER
TIME/DATE ANTENNA TIMING SYSTEM
Figure 2.1: Model 1201B/C Front Panel Description
2.2 Front Panel Controls and Indicators
The front panel of the Model 1201C differs from the Model 1201B due to the extra LED time
display, on the left side, and labeling differences. Other than the display and labeling differences,
the two clocks are functionally identical.
The Model 1201B has eight annunciator LED’s, a two-line by twenty-character LCD and eight-
button keypad; the Model 1201C adds to the Model 1201B another six-character, LED for greater
visibility. The upper row of keys are informational and the lower row of keys are for optional
configuration. Figure 2.1 illustrates the front panels of each clock.
Definitions for the annunciator LEDs and front panel keys are found below. Each of four upper
keys optionally allows you to view specific clock information, such as time and date, geographical
position and instrument status. Each of the four lower keys optionally allows you to configure
various clock functions, depending on the chosen security level.