Issue link: https://www.e-digitaleditions.com/i/1255991
July/August/September 2020 I 35 The high bay makerspace's catwalk presented more unusual challenges for security technology design. The makerspace consisted of glass walls on either side and pro- vided no physical security to users occupying or passing through the catwalk. For programs like this, video surveil- lance systems are typically the best way to secure such vulnerable spaces. In ANSYS Hall, a video surveillance sys- tem and emergency blue light phone were implemented to help security employees monitor the catwalk either proactively or during any threatening situation. Security Room In the design phases of any built space, special consider- ations must be made regarding optimal locations for a security room. In the case of ANSYS Hall, deliberate efforts were made to identify a security room location that did not interrupt any of the program's space require- ments and the 200-foot cable distance limitation. Preliminary architectural designs established a layout in which stairways and elevator shafts were located at the building's core, which centralized the location of access points that required security on each floor. Placing the security room in the basement level, where access points on each floor were still within the cable distance limita- tion, became an obvious next step. Forty-six doors in ANSYS Hall required security. To properly secure these doors, the team implemented a centralized system, rather than a distributed system in which a network connection and power would have been required at each door. The centralized system con- centrated all power in one room beside the door control- lers where only one network connection was needed. A composite cable was routed back to one room instead of throughout the facility in multiple locations. This approach saved money and energy. This system enabled the team to place door control- lers in enclosure panels that housed the main intelligent controller, multiple door control boards, power supplies, and relays. Cable troughs were installed both above and below the controller panels. A trough allowed for the cabling to be routed neatly from the controller into con- duit sleeves that led out from the security room, into a wire basket tray, and ended at the designated door. Messy cable feeds are a common obstacle for such proj- ects, and with minimum space to deliver maximum performance, organization is key. Another design solution for ANSYS Hall was the implementation of a composite access control cable that encompassed the four primary elements needed to secure a door into one overall jacket: a card reader, door contact, an electronic strike, and request-to-exit. Providing this type of cable reduced the number of overall cables the installer needed to pull because it was slightly larger with a diameter of .415-inches versus the .246-inch diameter of an alternative cable. A composite access control cable must be split once an installer pulls it to a desired door in order to allow each element to serve its corresponding device. To facili- tate this process, a small six-by-six-by-three-inch enclo- sure was mounted in close proximity to the door from which ¾-inch conduits were connected to a back box a card reader, a door frame that served request-to-exit, electronic strike and door contacts or an integrated lock- set that merged all devices. In ANSYS Hall, wherever an integrated lockset was used, the hardware manufac- turer provided a 25-foot cable with a Wiegand wiring harness, which enabled the installer to route the cable through the door and door frame to the small enclosure, thereby connecting the cable to the composite access control cable. This solution provided a very good alternative for designing more individual components into the The high bay makerspace area was designed to feel more industrial. For cabling, this meant a center spine cable tray had to be routed over the work areas. This solution provided a pathway for the distribution of data cabling, electrical wiring, and compressed air.