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Model 5355A
Operation and Programming
INDICATORS
REMOTE.
Indicator illuminates when 5355A is under remote operation and all front panel
controls are inoperative except the LOCAL key (unless Local Lockout command has been sent).
LISTENING.
Indicator illuminates when 5355A is addressed and monitoring the interface bus.
SIGNAL.
Indicator illuminates when input signal is of sufficient level to be counted.
KEY INDICATORS.
Indicator within a key illuminates when the key is pressed to initiate the key
function. Pressing the key again releases the function and the indicator extinguishes (except
for the CW and PULSE keys).
CONTROLS
All front panel controls are pushbutton keys with center indicators that indicate the oper¬
ating function of the plug-in. The keys are grouped under two general functional headings,
DATA ENTRY and MEASUREMENT, as described below.
The two color-coded DATA ENTRY keys on the left
side of the front panel are used to enter data for a
manual center frequency or an offset frequency.
When one of these keys is enabled (key indicator
illuminated) the functions of the MEASUREMENTS
keys to the right are defined by the label whose
color corresponds to that of the enabled DATA
ENTRY key.
Figure 3-1. Front Panel Controls, Connectors and Indicators
DATA ENTRY Keys
3-2
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