Operation: LED green (indication AS-i voltage / indication ext. 24 V AUX) Protection: IP 20 Shortcode: SmartLine25 4AO (C) C IP20 Product Name: AC2218 Connection: Combicon Function display: LED yellow (indication channels 1...4 / indication diagnosis DIAG) voltage output: 24 DC ± 20 % V Electrical design: 4 outputs 0...20 mA Error: LED red (FAULT: AS-i communication error / periphery fault) current output: 0...20 mA Operating voltage: 26.5...31.6 V DC Ambient temperature: 0...70 °C SKU HWWVILJBXER94Z Housing materials: PA 6.6