EX-23.1 4 v76174ex23-1.txt EXHIBIT 23.1 1 Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement on Form S-3 of our reports dated February 19, 2001, included in MRV Communications' Form 10-K for the year ended December 31, 2000, and to all references to our Firm included in this registration statement. /s/ ARTHUR ANDERSEN LLP ARTHUR ANDERSEN LLP Los Angeles, California October 4, 2001