Bolt Beranek and Newman Inc said itfiled with the Securities and Exchange Commission a
registration statement covering a 75 mln dlr issue of
convertible subordinated debentures due 2012.
    A portion of the proceeds will be used to acquire all of
the outstanding capital stock of Network Switching Systems Inc.
 Another part will allow Bolt to exercise its option to
purchase all of the limited partnership interests in BBN
RS/Expert Limited Partnership, with the rest used for general
corporate purposes. The company named PaineWebber, Merrill
Lynch and Montgomery Securities as underwriters.
 Reuter
