M204.0503
M204.0503 Invalid TERMBUF specification
This message is issued during initialization (IODEV processing) when the TERMBUF parameter is set incorrectly. Model 204 is terminated. TERMBUF should be between 1 (the default) and the value of NOTERM for the line group.
System manager response: Correct TERMBUF in the CCAIN input and rerun Model 204.