THE LGSF LASER SYSTEM - Thirty Meter Telescope

TMT.AOS.DRD.09.003.DRF05 Page 25 of 30REQUIREMENTS DOCUMENT FOR THE LGSF LASER SYSTEM August 25, 2009[REQ-3-LAS-1710] To allow rapid installation and removal of the Laser System, the LaserSystem should be designed so that the number of connections is minimized and theconnectors are accessible and easy to mount and dismount.3.6 INTERFACE REQUIREMENTS3.6.1 Telescope Structure (STR) Interface[REQ-3-LAS-1800] The Laser System shall have a structural and mechanical interface withthe telescope azimuth structure to be described in the STR to LGSF ICD.[REQ-3-LAS-1810] The Laser System shall have an access and handling interface with thetelescope azimuth structure to be described in the STR to LGSF ICD.[REQ-3-LAS-1820] The Laser System shall have services and utilities interface with thetelescope azimuth structure to be described in the STR to LGSF ICD.Discussion: The STR to LGSF ICD is not yet available. The anticipated interfaces betweenthe telescope structure and the Laser System are summarized here:- Structural and mechanical interface:The Laser System will be mounted on the (-X ACRS , -Y ACRS ) quadrant of the telescopeazimuth structure as shown in Figure 3. The allowable envelope of the LaserSystem is illustrated in section 4 (Appendix: Laser System Envelope Drawing). It isexpected that the Laser System will be composed of several components mountedon a platform. Note that this platform is part of the telescope azimuth structure andnot part of the Laser System. The space in the Laser System envelope is entirelydedicated to the Laser System envelope.