APS (APS User Manual) 9399-APSUM ) 1. 2. SLC ( ) 3. SLC FAULT LED COMM LED ( LED ) 2-6 3-1 • • SLC • RIO • CE EEA EMC 89/336/EEC (EMC) • EN 500812 EMC- 2 - • EN 500822 EMC- 2 - 3-2 DIP DIP 1 2 57.6K on on 115.2K on off 230.4K off ...