Comtech EF Data CDM-750 - Manual (Page 32)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Introduction MN-CDM750
1–8
1.3.3 CDM-750 External Physical Features
1.3.3.1 Front Panel
The function and behavior of the LED indicators, keypad, and VFD (Figure 1‐3) are described in
detail in Chapter 5. FRONT PANEL OPERATION.
Feature Description Function
See Chapter
Section...
1 LED Indicators The LEDs indicate, in a summary fashion, the status of the modem. 5.1.1
2 Keypad
Enter data via the keypad. The keypad comprises six individual
keyswitches. The keys have a positive ‘click’ action that provides
tactile feedback. Data, prompts, and messages are displayed on
the VFD.
5.1.2
3
Vacuum
Fluorescent
Display (VFD)
The VFD is an active display, with adjustable brightness, showing
two lines of 40 characters each. Nested menus display all available
options and prompts that guide you in carrying out required actions.
5.1.3
4 Rack Handles These handles allow easy placement into and removal from a rack. 2.2
Figure 1-3. CDM-750 Front Panel View