The EL6900 TwinSAFE Logic Terminal is a product from German company, Beckhoff Automation Technology, and acts as a bridge between TwinSAFE digital input and output terminals. Light and compact, it weighs 50 grams with dimensions of 12 mm x 100 mm x 68 mm (W x H x D). The terminal's facade includes eight LEDs for status indication and diagnostic purposes, and eight connection slots for input devices. Running on 24 VDC, the EL6900 has a minimum cycle time of 500 microseconds and an error reaction time ranging from 2ms to 60000ms, with a power dissipation of approximately 1W. It is vibration/shock resistant and EMC immune, meeting UL, IEC, EN, NRTL, and ISO safety standards. For optimal convection cooling, keep a necessary distance between the terminal and control cabinet walls or adjacent devices.