IBM RT PC 10 Hardware Maintenance And Service page 171

3-126 Service Manual
Dlx
Data Link Problem
This SRA number indicates a communication link problem. Use the
Communications Utilities to test the communication link.
D2x
Modem Problem
Run the checkout for the adapter attached to the failing modem. If
needed, use the Communications Utilities to analyze the problem.
If the checkout ends with the message "No trouble was found," go to
the maintenance package for the modem.
If the checkout ends with an SRN, use the right-most digit of the SRA
to determine the adapter slot position. If needed, see page 2-19.
D6x
Electrostatic Discharge Problem
This SRA number indicates that an electrostatic discharge problem
may exist.