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Exhibit 12.1

ADC Telecommunications
Ratio of Earnings to Fixed Charges
Instructions to Paragraph 503(d)—SEC Handbook

			Six Months Ended April 30						Fiscal Year Ended October 31
			2003			2002			2002			2001			2000		1999		1998		Source:
Earnings
	Income (loss) before income taxes		$	(70.9	)	$	(202.9	)	$	(882.2	)	$	(1,920.7	)	$	1,460.4	$	134.9	$	322.3	10-K 11-year Summary (10-Q)
ADD
	+ Adjustment for minority interests in consolidated subsidiaries or income or loss from equity investees.			—			2.6			2.6			9.7			—		—		—	Note 7 2002 Annual Report
	+ Fixed Charges			1.0			6.7			9.6			8.8			4.1		7.7		0.8	From below
	+ 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			—			—			—			—			—		—		—	Zeev Rom: G-Connect entity is not material enough
		Sub-total		(69.9	)		(193.6	)		(870.0	)		(1,902.2	)		1,464.5		142.6		323.1
SUBTRACT
	- Interest Capitalized			—			—			—			—			—		—		—	No interest capitalized
	- Preference security dividend requirements of consolidated subsidiaries			—			—			—			—			—		—		—	Confirmed with B. Crary & M. Bragg of Tax
	- Minority interest in pre-tax income of subsidiaries that have not incurred fixed charges			—			—			—			—			—		—		—	Not applicable
		Sub-total		—			—			—			—			—		—		—
		Total Earnings	$	(69.9	)	$	(193.6	)	$	(870.0	)	$	(1,902.2	)	$	1,464.5	$	142.6	$	323.1
Fixed Charges
	Interest Expensed		$	0.4		$	3.9		$	4.0		$	8.8		$	4.1	$	7.7	$	0.8	Annual Report: Other Fin'l Stmt Data; 10-Qs
	Interest Capitalized			—			—			—			—			—		—		—	No interest capitalized
	Amortized premiums, discounts & capitalized expenses related to indebtedness			—			—			—			—			—		—		—	N/A until Q3 FY 2003
	Interest Within Rental Expense—WHQ Synth Lease			0.6			2.8			5.6			—			—		—		—	CC 10136 Rent Expense A/C #687731
	Preference Security Dividend Requirements			—			—			—			—			—		—		—	Confirmed with B. Crary & M. Bragg of Tax
		Total Fixed Charges	$	1.0		$	6.7		$	9.6		$	8.8		$	4.1	$	7.7	$	0.8
	Ratio of Earnings to Fixed Charges			(69.9	)		(28.9	)		(90.6	)		(216.2	)		357.2		18.5		403.9
	Deficiency of Earnings to Fixed Charges		$	70.9		$	200.3		$	879.6		$	1,911.0

		Q1/Q2			Q3/Q3		Total
CC 10105 Corp Mpls Non Operating			1,317,122		267,007		1,584,129
CC 10262 ADC Receivable Corp1			4,990,751		(543,516	)	4,447,235
"IS" Node "IS" Node			523,095		55,120		578,215
	"BIA" Node		1,133,442		407,965		1,541,407
	Corp Elim Entry		(4,103,009	)	(58,626	)	(4,161,635	)	Entry made in Q3, but applied to Q2
	Other		—		17,415		17,415
			3,861,401		145,365		4,006,766
		$	3.9

Presented on preceeding page as Int Exp for 6 months ended April 30, 2002

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Exhibit 12.1