Comtech EF Data CDM-570A - Manual (Page 105)

6–1
Chapter 6. FRONT PANEL
OPERATION
6.1 Overview
Figure 6-1 identifies the key features of the CDM-570AL/CDMR-570AL (L-Band) or CDM-570A
(70/140 MHz) Satellite Modem front panels. The front panel features (from left) eight Light-
Emitting Diode (LED) Indicators, a six-button keypad, and a Vacuum Fluorescent Display (VFD).
The LED Indicators, keypad, and VFD allow you to fully control and monitor the CDM-570A/
570AL’s operation. Refer to the pertinent chapter section for detailed information about the
function and behavior of these features.
Figure 6-1. Modem Front Panel Operation Features (CDM-570A shown)
1 LED Indicators
The LEDs show a summary status of modem operation. See Sect. 6.1.1.
2 Keypad
The keypad has six individual keys. The keys have a positive ‘click’ action that gives
tactile feedback. Use the keypad to enter data. See Sect. 6.1.2.
3 Vacuum Fluorescent Display (VFD)
The VFD shows data, menus, prompts and messages. The VFD is an active display with
adjustable brightness. It shows two lines of 40 characters each. Nested menus show all
available options and prompts that guide you in carrying out required actions. See Sect.
6.1.3.