Symmetricom 58502A - Manual (Page 57)

Chapter 3 Features and Functions
Different Ways to Check Alarm Status
User’s Guide 3-11
Different Ways to Check Alarm Status
The 58502A provides three ways to check its alarm status: visually
viewing the front-panel indicators, querying for status via the RS232
port, and monitoring the ALARM/STATUS port.
Configuring the Inputs
The 58502A Broadband Distribution Amplifier can be manually
operated, or operated with a computer or terminal for enhanced
features.
The 58502A can be manually operated in all four modes of operation as
described in the following paragraphs.
To Configure One Input Operation
Connect the input signal to either input A or B. The input signal will
appear on all twelve outputs.
To Configure Two-Input Operation
Connect the primary or preferred input signal to input A, and connect
the secondary input to input B. The input signal will appear on all
twelve outputs. If the primary input fails the 58502A will
automatically switch to input B, and the secondary input signal will
appear on all twelve outputs.
NOTE If input A signal goes away while there is a signal at input B, the
auto-switching feature automatically switches to using the input B
signal. However, if the input A signal returns, the 58502A will
continue to use the input B signal. It will not return to using the
input A signal until you send the SCPI commands INP:SEL A and
INP:SEL:AUTO 1.