From BR Wiki
WAIT is located in statement syntax before the colon, and within the quotes of the file ref section if present.
- WAIT= specifies the number of seconds the system should wait for operator input before responding with a TIMEOUT error condition.
- NOTE that WAIT=0 instructs the system to wait for zero seconds, not to ignore the WAIT instruction.
- Also, -1 is a special WAIT value that instructs the system to wait forever, if necessary.
Every time the operator presses a key, the clock is reset for WAIT seconds.
00140 INPUT #11,FIELDS "10,10,C 10",WAIT=30:X$ TIMEOUT 100