Ref.:208554048The basic equipment for ID3000 systems includes CPU main processor circuit, motherboard with 2 analog loops expandable to 8 with LIB3000 modules, 4 output circuits, 2 input and 2 output circuits of 24 Vdc. for power supply of external equipment, RS232 serial communication interface interface and optional RS232 and RS485 series interface expansion slots. Faceplate with LCD screen, keypad and system status indicator LEDs. Space is available to place the 020-648 power supply or 020-543 converter module in the same chassis if a 4.5 or 7A power supply is used [208554048]