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Operation
Xerox FS 3270, User's Guide
- 19 -
SER (Serial input)
The indicator LED has 3 states
State Indication
ON
Indicates that the box is processing data from the
RS-232 Serial input
BLINKING
Indicates that the box has defined the RS-232 as
output for the box.
OFF
Indicates that the box is idle or is processing data
from the coax/Centronics inputs.
READY (Printer Ready)
The indicator LED has 3 states:
State Indication
ON
Indicates that the connected printer is ready; i.e.
that printer's "Select" condition is active and the
"PE" signal is inactive. If the connected printer is
an RS 232 printer, the ready validation is done by
the "DTR" signal.
OFF Indicates that the connected printer is not ready
for data input.
BLINKING Indicates a not-ready condition