<PAGE>

                                                                    EXHIBIT 15.1

March 11, 2002

To the Stockholders and Board of Directors of
Cable Design Technologies Corporation:

We are aware that Cable Design Technologies Corporation has incorporated by
reference in its Registration Statements on Form S-3 (Registration No. 333-
00554); Form S-8 (Registration No. 333-80229); Form S-8 (Registration No. 333-
76351); Form S-8 (Registration No. 33-73272); Form S-8 (Registration No. 33-
78418); Form S-8 (Registration No. 333-2450); Form S-8 (Registration No. 333-
6743); Form S-8 (Registration No. 333-17443); and Form S-8 (Registration No.
333-73790) its Form 10-Q for the quarter ended January 31, 2002, which includes
our report dated February 25, 2002, covering the unaudited interim financial
information contained therein.  Pursuant to Regulation C of the Securities Act
of 1933 (the Act), that report is not considered a part of the registration
statements prepared or certified by our firm or a report prepared or certified
by our firm within the meaning of Sections 7 and 11 of the Act.  It should be
noted that we have not performed any procedures subsequent to February 25, 2002.


                                                  /s/Arthur Andersen LLP

