User Manual

ADCP-75-115 • Issue A • August 2001
Page 7
© 2001, ADC Telecommunications, Inc.
4 LPA USER INTERFACE
The LPA user interface consists of the various LEDs, message displays, and switches that are
provided on the LPA front panel. The LPA user interface points are described in Table 3 and
indicated in Figure 2.
Figure 2. Linear Power Amplifier User Interface
Table 3. Linear Power Amplifier User Interface
REF
NO
USER INTERFACE
DESIGNATION
DEVICE
FUNCTIONAL
DESCRIPTION
1 RESET Momentary contact
push button switch
Momentarily pressing the switch push button
clears all alarms and restarts the amplifier
2RF ON OFF 2-position switch Placing the switch in the OFF position puts the
LPA in a standby state with RF output disabled.
Placing the switch in the ON position puts the
LPA in the normal state with RF output enabled.
3FAIL LED indicator
(yellow)
Indicates the LPA is normal (off) or faulty
(yellow).
4 SHUTDOWN LED indicator (red) Indicates the LPA is in service (off) or shutdown
(red).
5No designation Digital display Provides status and alarm messages. See Note.
Note: A more detailed description of the digital display messages is provided in the
Digivance LRCS
Single Band SMR Installation and Operation Manual (ADCP-75-116)
.
(1) RESET
SWITCH
(2) RF ON/OFF
SWITCH
(3) FAIL
LED
(4) SHUTDOWN
LED
(5) DIGITAL
DISPLAY
16804-A