Comtech EF Data SMS-458B - Manual (Page 39)

SMS-458B Modem Protection Switch Revision 2
Operation MN/SMS458B.IOM
3–3
3.3 Keypad and LCD Display
The keypad and LCD display provide an interface for the local user to access the menus
that configure and operate the switch. The keypad includes:
• Numbers 0 through 9
• Decimal
• [ENT]
• [F1] and [F2]
• [NEXT]
• [PREV]
The last four keys specified control the hierarchical menu structure. Menus provide for
local setup, configuration, and operation. Each menu contains a portion of the switch
control or setup algorithm. Only a limited knowledge of the switch is required, as the
menus are self-prompting and all options are displayed.
The base levels of this tree-structured front panel menu are as follows:
• ID menu displayed at power-on
• SYSTEM and MODEM SETUP menu
• MODEM CONFIGURATION menu
• FAULT
menu
• MODE
menu
• STATUS
display