ENGINEERING DATA SHEET EQUIPMENT EPM-112 28 VDC WINDSHIELD HEATER CONTROL UNIT Application: Small jets, helicopters, etc. Function: The control unit provides power to heating elements while monitoring the temperature of the windshield. It contains two independent channels, each rated for providing 1.4 kW to windshield heating elements. Characteristics: Temperature Range: -55°C to +85°C. Maximum weight: 600 gr, Typically 500 gr. Dimensions of case: 96mm (W) x 80mm (L) x 43mm (H). Dual control channel, each with 2 independent temperature sensor inputs. Features: Status reporting via an ARINC 429 on single bus at 100 kHz with 100 ms transmission cycle. Continuos BIT for high reliability operation. Protection against over-current due to wiring or heater elements short circuit and open circuit. Protection against over temperature and failure of sensors. External fail safe contactor control.

Featuring LEACH© power and control solutions   www.esterline.com AMERICAS 6900 Orangethorpe Ave. P.O. Box 5032 Buena Park, CA 90622 Tel: (01) 714-736-7599 Fax: (01) 714-670-1145 EUROPE 2 Rue Goethe 57430 Sarralbe France Tel: (33) 3 87 97 31 01 Fax: (33) 3 87 97 96 86 ASIA Units 602-603 6/F Lakeside 1 No.8 Science Park West Avenue Phase Two, Hong Kong Science Park Pak Shek Kok, Tai Po, N.T. Hong Kong Tel: (852) 2 191 3830 Fax: (852) 2 389 5803 Data sheets are for initial product selection and comparison. Contact Esterline Power Systems prior to choosing a component. Date of issue: 7/06 - 33 - Page 1 of 3