093

Explanation
The error occurred during processing of a basic
telecommunications access method (BTAM) OPEN macro. An OPEN routine
found an incorrect or unsupported type of terminal specified in the
unit control block (UCB) for the device allocated to the data control
block (DCB) being opened.

System programmer response
If the error recurs and the program
is not in error, look at the messages in the job log for more information.
Search problem reporting data bases for a fix for the problem. If
no fix exists, contact the IBM® Support
Center. Provide the JCL and the program listing for the job.

Programmer response
Check for improper specification of the
UNIT parameter in the IODEVICE macro used in generating the system.
 Also, check for program errors that could have improperly modified
control information.  Correct the error, and run the job step again.

Source
Teleprocessing