Symmetricom 58502A Manuel d'utilisateur télécharger pdf (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.

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Symmetricom 58502A Manuel d'utilisateur Page 57