Microwave Radio Communications SCM4000, Technical Reference Manual, Page: 24 / 274

Routine Operation 3-2 SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-2 SCM4000 Operator’s Guide/Tech Ref Manual
depending on the input power option ordered with your unit. The
power switch assembly also contains the input power fuse and
the AC/DC power connector.
POWER LED The green POWER LED is illuminated when
power is applied to the unit and the power switch is set to on
( I ) during normal operation.
ALERT LED The amber ALERT LED will illuminate when
system errors are present that do not cause the system to lose
service.
ALARM LED The red ALARM LED will illuminate when system
errors are present that cause the system to lose service.
Alphanumeric Display The alphanumeric display provides the
user interface to enable local control of the state of the SCM4000
and to provide full monitoring capability for the system.
Function Keys The function keys provide user inputs to control
the menu system that appears on the alphanumeric display. The
function keys consist of four directional arrow keys, a
SEL
(Select) key, and an ESC (Escape) key that are used to navigate
through the SCM4000 menus and to modify and monitor the
state of the SCM4000 system.
Figure 3-1: SCM4000 Controls, Indicators, and Connectors
POWER IN
IF IN
ALERT
LED
POWER
LED
ALARM
LED
Alphanumeric
Display
Function
Keys
Front View
Rear View (AC Power Option)
Power
Switch
Fuse (Located
Under Safety
Cover)
POWER IN
FUSE
Rear View (DC Power Option)
Power
Switch
Fuse