This is fixed in AFS 1.3.
There is a discrepancy between the default build options in the assembler source files and the C source files, that causes the RMTarget library to operate incorrectly. The effect of this is disrupt communication between the target and host, resulting in "RDI Warning 00200: Data link timeout error". To fix this, you must perform the following steps:

1) In the rm_options.s file, locate the following text:

         IF :LNOT::DEF:RM_DEBUG
         GBLL                   RM_DEBUG
RM_DEBUG                        SETL    {TRUE}
         ENDIF 

2) Change the RM_DEBUG option to FALSE, as follows:

         IF :LNOT::DEF:RM_DEBUG
         GBLL                   RM_DEBUG
RM_DEBUG                        SETL    {FALSE}
         ENDIF 

(DE 44687)