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 1200B and 1201B/C series clocks. Take care to review all of these items prior to connecting
any cables and wires, and configuring the clock.
Figure 2.1: Model 1200B and Model 1201B/C Front Panel Description
2.2
Front Panel Controls and Indicators
The Model 1200B, Model 1201B, and Model 1201C all have eight annunciator LEDs and an eight-
button keypad. The top row of keys are informational, including time and date, antenna status,
geographical position, and instrument status. The bottom row of keys allows you to configure
various clock functions, depending on the chosen security level. Figure 2.1 illustrates the front
panels of each clock.
