This part is a kind of semiconductor called U1603.

Function of this product has (U1602 / U1603) Energy Control System.

Manufacturers : ECS

Image and pinout :

Some of the text within the PDF file :

www.datasheet4u.com U1602, U1603 ENERGY • CONTROL • SYSTEM 3-349-046-03 2/8.05 • 64 processing channels physical inputs or LON meter outputs can be assigned for the calculation of energy, power and costs Energy Control Language for the programming of analysis, monitoring and optimization applications LON interface for 63 LON devices Two RS 232 interfaces (115 kBit/s) for connection to PC, modem, printer or radio-controlled clock Two ECS LAN interfaces for the linking of individual summators over great distances Simple software update via serial interface (Flash) QUALITY MANAGEMENT SYSTEM • • • • • U1603 • 6 universal inputs: ± 5 mA, ± 20 mA, ± 10 V, S0 pulse • • 2 analog outputs: ± 20 mA or ± 10 V 2 relays and 4 MOS switches for controlling external process [ ... ]

U1603 PDF Datasheet Download