Printek 4503 - Manual (Page 139)

Optional Coaxial/Twinaxial Interface
Page A-3
To assist in verifying that the proper EBCDIC characters are being sent to the
coaxial/twinaxial port from the host, refer to the interface diagnostics section in the
coaxial/twinaxial appendix in the Operator's Manual for information on how to use
the Code Dump mode of the interface.
To verify that the interface is sending the correct ASCII characters to the printer, see
the Hex Dump chapter in this manual.