IBM 5251 Series Maintenance Information Manual page 149

0124 Activate Not Valid
This condition indicates that the activate command
that was sent to the display station was not valid.
0125 Undefined Exception Status
This condition indicates that an undefined
exception status was returned by the display
station in response to a poll.
0149 Undefined Error Status
This condition indicates that the controller found
an error but the cause of the error could not be
determined.
0181 Magnetic Stripe Reader Error
This error is indicated if no device word was
received by the controller while bit 10 was on.
0182 Device Type Error
This condition indicates that an unsupported
device responded to a poll.
0183 Wrong Size Display Assembly
The CRT image size does not match the CRT
image size set in the ID word sent by the display
station.
0184 Incorrect Keyboard I D
The keyboard ID received by the controller was
invalid.
0185 Incorrect Keyboard Specified
The keyboard I D received by the controller does
not match the I D in the keyboard table in use for
the display station.
0189 Invalid Outstanding Status
An outstanding status was presented in the poll
response, and no outstanding status information
was available.
Time-Out Errors
0190 Even/Odd Change in Status
This condition indicates that the status sent to the
controller from the display station did not change
within 225 ms after the controller sent a positive
acknowledgment and received a not busy
response.
0191 Busy
This condition indicates that the controller found
that the busy bit had been on for a period of more
than 400 ms.
Maintenance Procedures 5251 MIM 1-131