20
W&T
RS232 Serial Buffer
Power-/ Error-LED
The Power LED of the buffer is normally constant-on after pow-
ering up the device. If this LED starts flashing during operation,
this indicates an incorrect data format setting. The buffer indi-
cates detected parity and frame errors by flashing the Power
LED. Characters having frame errors are suppressed by the
buffer to prevent transmission of incorrect characters which are
generated when turning on the computer due to uncontrolled
actions on the data lines. If the Power LED starts flashing im-
mediately after powering up the computer, this does not nec-
essarily indicate an improperly configured data format.
Summary of Contents for RS232 88102
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