On Jan. 6, 2002, Standard&Poor's Ratings Services assigned its 'BBB-' senior unsecured debt rating to Tyco International Group S.A.'s (TIGSA) $3.25 billion convertible senior debentures (Series A due 2018 and Series B due 2023) to be issued under Rule 144A with registration rights. TIGSA is a wholly owned subsidiary of Tyco International Ltd. (Tyco). Holders may require the company to purchase the Series A debentures on Jan. 15, 2008, and Jan. 15, 2013, and the Series B debentures on Jan. 15, 2015 or either series in the event of a fundamental change, as defined. The company may choose to pay the purchase price in cash, Tyco common shares, or a combination of the two. The ratings on these