Sync, TyLink Merge

Sync Research Inc. completed its acquisition of privately held TyLink Corp. of Norton, Mass., for 2.78 million shares of stock worth about $40 million, and $4 million cash.

Sync Research, which provides computer networking software for customers of International Business Machines Corp.’s networks, said it will report combined financial results for the quarter ending Sept. 30, although the companies operated separately until last Thursday. TyLink develops high-speed communications products.