186. Installation Instructions6.1. Start UpPlease check the contents of your delivery:Basic unit 1 pcThis manual 1 pcInbus key 2/5 1 pcTransparent name plate foil of size A5 1 pcDowels 2 pcsScrews 2 pcsSubstitute name plate 1 pcNote: If you have bought a complete “packet“, the delivery may contain additional itemsincluding instructions for use and lists of available parts.6.2. Mechanical MountingMounting Options What You Need for MountingIndoor wallmounting- 2N ® Helios onlyIndoorflushmounting- 2N ® Helios1-module flush mounting box withframe, Part No. 9135351E, or2-module flush mounting box withframe, Part No. 9135352EOutdoorwallmounting- 2N ® Helios- 1-module wall-mounting roofPart No. 9135331E, or- 2-module wall-mounting roofPart No. 9135332EOutdoorflushmounting- 2N ® Helios- 1-module flush mounting box with roofPart No. 9135361E, or- 2-module flush mounting box with roofPart No. 9135362EIncreasedProtection- 2N ® Helios- Vandal Resistant cover with a boxdesigned according to the set to bemounted