2707-L40P2 Allen-Bradley DTAM Plus Operator Interface Terminal for SLC 500 DH-485 Networks The Allen-Bradley 2707-L40P2 is a rugged, 4-line HMI that replaces failing control panels on legacy industrial networks. Its NEMA 4X housing restores diagnostics instantly, preventing plant downtime without a full system upgrade. 40K Non-Volatile RAM: Stores screens locally, preventing data loss during sudden power failures. 85-265VAC / 110-300VDC Power: Absorbs heavy voltage surges,