Power Panel PP21 LCD display 4x 20 characters, backlight, 34 function keys, compatible with 2003 CPU, 700 kB SRAM, 1.4 MB FlashPROM, 1 PCMCIA slot, 1 RS232 interface, 1 CAN interface: electrically isolated, network-capable, 6 slots for screw-in modules, 10 digital inputs 24 VDC, 8 digital outputs 24 VDC, 0.4 A, IP65 protection (front), 155 x 190 mm (W x H), 24 VDC. Order TB712 terminal blocks separately!