Corporate Credit Rating A-/Stable/A-2 Standard&Poor's said today that Tyco International Ltd.'s planned acquisition of Simplex Time Recorder Co.--a privately held manufacturer of fire and security products--for $1.15 billion in cash ,will have only a modest impact on Tyco's business and financial profile, and will not result in any change to the ratings or outlook on the company. This acquisition brings complementary products, recurring revenues, and opportunities for cost savings.