
33
Chapter 1, Getting Started
Control Annunciators
Control Annunciators
The letters and symbols at the top right corner of the display indicate these
conditions:
•
R
indicates the Test Set is in remote mode. The Test Set can be put into the remote
mode by an external controller or by an IBASIC program running on the
built-in IBASIC controller.
•
L
indicates the Test Set has been addressed to listen.
•
T
indicates the Test Set has been addressed to talk.
•
S
indicates the Test Set has sent the require service message by setting the service
request (SRQ) bus line true. (See
"Status Reporting" on page 101
).
•
C
indicates the Test Set is currently the active controller on the bus.
•
*
indicates an IBASIC program is running.
•
?
indicates an IBASIC program is waiting for a user response.
•
-
indicates an IBASIC program is paused.
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