//(1)(i) Fluoroscopic equipment manufactured before June 10, 2006// * Shall be provided with means to preset the cumulative irradiation time of the fluoroscopic tube. ** The maximum cumulative time of the timing device shall not exceed 5 minutes without resetting. ** A signal audible to the fluoroscopist shall indicate the completion of any preset cumulative irradiation-time. ** Such signal shall continue to sound while x-rays are produced until the timing device is reset. ** Fluoroscopic equipment may be modified in accordance with 1020.30(q) to comply with the requirements of 1020.32(h)(2). ** When the equipment is modified, it shall bear a label indicating the statement: ** ''Modified to comply with 21 CFR 1020.32(h)(2).'' * (ii) As an alternative to the requirements of this paragraph, radiation therapy simulation systems may be provided with a means to indicate the total cumulative exposure time during which x-rays were produced, and which is capable of being reset between x-ray examinations.