Front Panel; Indicators - Tektronix 2642A Reference

Introduction
1-2
The 2642A Analyzer
The following input system features are programmable:
• Bandwidth (effective sample rate)
• Gain and offset
• Triggering
• AC/DC coupling
• Accelerameter current source
The base unit analyzer includes two input channels (with zoom
capability), and a built-in signal generator (analog output channel).
The following hardware options can be ordered:
• Integrated display device (option 33)
• Two additional input channels (option IH)
• Extended performance configuration (16-bit
A/D
converter)
option (option 16)
• Six extra megabytes of transient capture memory (option 6M)
• Digital Measurement Adapter (option ID)
Front Panel
The front panel. shown in Figure 1-1, contains three indicators, four
input connectors, a power switch, and an optional output connector.
Note: if your analyzer is configured for two channels, the front panel
will still contain four input connectors, but only the connectors labeled
CHI and CH2 will operate. (Four connectors are provided so that
upgrading to a four channel system requires simply plugging in two
new boards.)
Indicators
The three indicators show the current analyzer status, as follows:
Power
Active
The analyzer is powered up.
When lit steadily or intermittently, it indicates the
analyzer is performing various operations. When
flashing steadily at about once every two seconds, it
indicates the analyzer is reset and waiting to be