AST RESEARCH TECHNICAL BULLETIN TB-0152 2-19-86 AST-5251/11 WITH AT&T 6300 USING DISPLAYWRITE 36 When configuring an AST 5251/11 board in an AT&T 6300 or 6300 PLUS, it is suggested to configure the workstation on the host as a 5251/11, not a 5291 or 5292. Configuring the workstation as a 5291 or 5292, can cause the terminal to lock up when attempting to create, revise, or view a DISPLAYWRITE 36 document.