EXHIBIT 12-a

ADC Telecommunications
Ratio of Earnings to Fixed Charges

	Fiscal Year Ended October 31
	2003		2002		2001		2000		1999
Earnings          Income (loss) before income taxes	$  (82	.1)	$  (882	.2)	$  (1,920	.7)	$   1,460	.4	$    134	.9
ADD          + Adjustment for minority interests in consolidated	—		2	.6	9	.7	—		—
subsidiaries or income or loss from equity investees
+ Fixed Charges	7	.2	11	.3	16	.2	7	.9	11	.6
+ Distributed income of equity investees	—		—		—		—		—
+ ADC's share of pre-tax losses of equity investees for	—		—		—		—		—
which charges arising from guarantees are included in
fixed charges
Sub-total	(74	.9)	(868	.3)	(1,894	.8)	1,468	.3	146	.5
SUBTRACT
- Interest Capitalized	—		—		—		—		—
- Preference security dividend requirements of	—		—		—		—		—
consolidated subsidiaries
- Minority interest in pre-tax income of subsidiaries	—		—		—		—		—
that have not incurred fixed charges
Sub-total	—		—		—		—		—
Total Earnings	$  (74	.9)	$  (868	.3)	$  (1,894	.8)	$   1,468	.3	$    146	.5
Fixed Charges
Interest Expensed	$     3	.6	$       4	.0	$          8	.8	$          4	.1	$       7	.7
Interest Capitalized	—		—		—		—		—
Amortized premiums, discounts & capitalized expenses	0	.6	—		—		—		—
related to indebtedness
Interest Within Rental Expense	3	.0	7	.3	7	.4	3	.8	3	.9
Preference Security Dividend Requirements	—		—		—		—		—
Total Fixed Charges	$     7	.2	$      11	.3	$         16	.2	$          7	.9	$     11	.6
Ratio of Earnings to Fixed Charges	(10	.4)	(76	.8)	(117	.0)	185	.9	12	.6
Deficiency of Earnings to Fixed Charges	$   82	.1	$     879	.6	$     1,911	.0

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