Private equity deals

ABRY Partners is in talks to acquire Securus Technologies Inc., a Dallas-based provider of audio and video communications systems for U.S. corrections facilities, from Castle Harlan for around $640 million, according to Bloomberg. www.securustech.com Arlington Capital Partners has acquired MB Aerospace, a UK-based provider of highly-engineered components for the commercial and military aero-engine and industrial gas turbine markets, from LDC Private Equity. No financial terms were disclosed. www.mbaerospace.co.uk AXA Private Equity, Apollo Global Management and Nordic Capital have submitted tentative bids forScandlines, operator of ferry MORE