** Shares of electronic equipment maker Keysight Technologies KEYS.N fall 1% to $169 premarket

** Morgan Stanley downgrades rating to "equal-weight" from "overweight", maintains PT at $180

** Brokerage says Keysight's recent acquisitions have long-term potential but limited short-term gains

** Co's lack of clarity around the scale of its AI business makes it difficult to support a valuation upgrade, says Morgan Stanley

** However brokerage sees room for upward revisions to estimates as co's communications segment benefits from strong industry momentum

** 9 of 12 brokerages rate the stock "buy" or higher, 3 "hold" ; their median PT is $190- data compiled by LSEG

** As of last close, stock has risen 6.5% YTD

(Reporting by Apratim Sarkar in Bengaluru)

((Apratim.Sarkar@thomsonreuters.com))