6.5 Equipment (ER) / Telecommunications Room (TR)

These guidelines are the general design standards Equipment Room (ER) is the central hub for IT infrastructure for all Dell global projects. Please see the standard to the site, contains the D-mark for providers circuit installations, main horizontal/vertical distribution of the below for regional specific details that may vary Dell structured cabling from the patch panels, servers, phone from location to location. systems, LAN equipment (such as routers, core switches, and hubs), and security. The ER also serves as a TR, extending voice/data connectivity to Telecommunications outlets in the immediately surrounding office area, with cable runs not exceeding the Ethernet distance limitation of 295 feet / 90 Overview Meters.

This document’s objective is to provide Telecommunications Room (TR) is required If the space has distances farther than 295 feet/ 90 Meters from the ER. The Architects and other designers with (TR) is the critical point between the work area and the (ER) and are connected through Fiber cabling. The infrastructure a design-requirements and guidelines cabling to the point of use comes from the TR and it houses document that will help them plan the the equipment, cable terminations, and cross-connects that serve a specific office area and/or a specific . The TR is telecommunications facilities for Dell IT. The typically a floor-serving room for horizontal distribution. Scope of Work includes the infrastructure and telecommunication required by new REQUIREMENTS or additions and/or upgrading of AND PLANNING existing buildings. Global Space Planning, PMO and IT’s Data Center Engineering General Requirements • Spaces shall be designed with finishes to minimize dust. and Project Management Team is essential • Spaces should be designed based on the location’s seismic during the design phase to identify activity. • Space should be designed without , and should not optimum space layouts and IT equipment be located by exteriors of the building. requirements. • The type of ER and TR or combination is determined by the factors below: • Number of cabling point of access • Type of specific business requirements • Number of networks and types

DESIGN STANDARDS | WORKPLACE ENVIRONMENTS EQUIPMENT ROOM / TELECOMMUNICATIONS ROOM 1 • The ER shall always be located on the ground floor if Dell owns e. Large ER - (X) number of employees = 22’-0” or leases the whole building. If only leasing a suite or a few x 40’-0” (6600mm x 12,000mm) , the ER should be located on the primary floor. f. Large TR - (X) number of employees = 14’-0” • Vertical Location: In multi-story buildings, requiring multiple x 19’-0” (4200mm x 5700mm) TR , the TR rooms shall be in vertical stack alignment. 3. Sizing is based on 385 drops per rack. Offsetting a TR on one floor from the TR above and below 4. Infrastructure not related to or in support of the ER/TR is not preferred. Locate rooms close to vertical chases if (Example: domestic water/drain piping, drains, ductwork, possible. and non-IT related electrical power), should not be located in, • Plan for the maximum cable distances of 295’-0” (90m). or pass through the room. • Locate the ER/TR rooms in a central location to reduce cable 5. Mechanical Specifics: distances. a. Provide ER/TR rooms with a separate, dedicated A/C • Locate the ER/TR rooms within the space to reduce humidity system connected to the emergency circuit power if and water risks available. If it is not possible to provide a separate • TR’s shall not feed separate floors if in multi-story buildings system, the A/C unit serving the ER/TR shall be on emergency circuit power if available. System types can Planning Specifics be Mini splits, CRAC’s or IRCs depending on countries, See chart below for ER/TR Room sizes. Room sizes are shown locations and type of building infrastructure. in Imperial and Metric dimensions. Rooms sizes are also listed b. A positive pressure shall be maintained with a minimum as standard size with or without the Fire Panel/FM Global 200 of one air change per hour, or as required by applicable equipment and clearances, as required. code. When active devices (heat producing equipment) 1. ER/TR Plans: are present, a sufficient number of air changes shall be a. Small ER/TR - (Click here to view) provided to dissipate the heat, or a separate cooling b. Small ER - (Click here to view) system installed. Ventilate per code requirements. c. Small TR - (Click here to view) Maintain temperature of 75 degrees Fahrenheit (24 d. Medium ER/TR - (Click here to view) degrees Celsius), +/-2 degrees Fahrenheit, and a humidity e. Large ER - (Click here to view) level of 60%. f. Large TR - (Click here to view) c. Refer to local code requirements for mounting height of 2. Planning for the type and size can be based on the number of thermostats and controls from the finished floor to center employees per type: of device. Locate based on heat generation and the a. Small ER/TR - (X) number of employees = 20’-0” location of the equipment in the room. x 22’-0” (6000mm x 6600mm) d. Calculate the cooling load and size the cooling b. Small ER - (X) number of employees = 14’-0” equipment appropriately according to IT equipment loads. x 20’-0” (4200mm x 6096mm) e. Provide monitoring and controls to maintain the thermal c. Small TR - (X) number of employees = 14’-0” conditions. x 16’-0” (4200mm x 4800mm) f. Locations of appropriate sensors (thermostats, d. Medium ER/TR - (X) number of employees = 20’-0” humidistats, etc.) shall be coordinated with the Engineer. x 22’-0” (6000mm x 6600mm)

DESIGN STANDARDS | WORKPLACE ENVIRONMENTS EQUIPMENT ROOM / TELECOMMUNICATIONS ROOM 2 6. Electrical Specifics: minutes of battery reserve power at full load and a. levels to be 538 Lux (50fc) min. at 36” (900mm) generator power when available. Provide one UPS dual above finished floor. circuited, stand-alone or rack mounted dependent on b. Provide linear pendant or lay in LED light fixtures. the loads. The IT Equipment Room shall be connected to c. Provide mounted occupancy sensors to stay on for the centralized UPS system if available at large site or a minimum of 15-30 minutes. campus location. d. Receptacles: f. UPS Standard: i. Coordinate power receptacle requirements for i. The IP camera must use the POE function to telecommunication rack systems. connect to the Dell IT network switch that has ii. Coordinate power requirements for the UPS system supported by the IT UPS system in the ER/TR serving telecommunication equipment. room. iii. UPS feeds will be -mounted adjacent to the row. ii. The midspan POE power model of Axis PTZ Mount the UPS power drop above the rack where Cameras must be connected to the IT UPS the UPS is located. system in the ER/TR room. iv. Support the IT equipment receptacles separately iii. The NVR server is set up by The Dell IT team and from the cable tray on unistrut hangers above the connected to the IT UPS system according to Dell back of the telecommunications racks. IT standard. v. Provide additional receptacles required by code to iv. The power supply of the access control system support the room layout. must be connected to the IT UPS system in the vi. Provide a dedicated 20 amp hardwire connection or TR room even we already have backup batteries outlet fed through conduits to support security for the power supply unit of the access control panels. system. e. Install the UPS system to provide conditioned power to v. The IT UPS system usually provided and IT equipment. Dual-corded IT equipment will have power maintenance by the facilities team or Landlord. We supply fed from UPS-A, and power supply fed from can also purchase an APC UPS if there are no UPS-B. Single-corded IT equipment will be fed from the other UPS available. But we prefer to be provided UPS. Provide power backed up by UPS having 15 and maintained by the Dell facilities team instead of VAR.

DESIGN STANDARDS | WORKPLACE ENVIRONMENTS EQUIPMENT ROOM / TELECOMMUNICATIONS ROOM 3 vi. Access control systems connected to IT UPS with 9. Provide BAS (Building Automation System) Monitoring for different circuits and a circuit breaker. the following: vii. The power supply of the access control system a. Mechanical and temperature control systems must have a built-in battery. The built-in battery b. Electrical distribution should be 12V 7AH or 12V 12AH. viii. The power AC failure and Battery trouble should be connected to the inputs of the panel and GENERAL monitored by the software platform. ix. Power supplies for panels, card readers, electric INFORMATION lock and other peripheral devices must be Space Design adequate to sustain all readers with all locks • All and finish selections to be reviewed and approved by Global unlocked. All groups are to have a battery backup Space Planning. Selections to be coordinated with the PMO for 4 hours. budget and schedule. x. VAR needs to calculate and configure the amount • Space should be designed to meet code and maintenance of power supply and built-in battery according to clearances to easily access the equipment. different electric lock types to reach the standard • Allow a minimum of 48” (1220mm) of clear working of 4-hour backup time. space in front of all 4 post and 2 post racks and a xi. VAR needs to put a start date label on the battery minimum 36” (900mm) from the rear of the installed IT to facilitate the Dell SS team to track and maintain equipment. the battery life. • Reference attached illustrated drawings. See list of rooms xii. The SS team will engage VAR to inspect the in Planning Specifics, item #1. Any deviations should be batteries on-site regularly. If the batteries are aged approved by Dell Data Center Engineering. and not working, they should be replaced ASAP • Allow a minimum of 48” (1220mm) of clear working according to the standard process. space in front and a minimum of 36” (900mm) at rear of g. Provide Telecommunications Ground Bar (TGB) bonded equipment cabinets. Any deviations should be approved to building steel or other approved telecommunications by Dell Data Center Engineering. ground, as well as back to Telecommunication Main • If multiple equipment rack rows are required, provide a Ground Bar (TMGB) in Data Center minimum 48” (1220mm) aisle between each row of h. Install a cable tray system above the equipment/ racks. telecommunication racks for management of all • A minimum aisle clearance of 48” (1220mm) is required at low-voltage cables. Cable tray sized per IT requirements. one end of an equipment rack row. Clearance shall align Basket style is typical. with ER/TR doorway. 7. Security: • The structural support must meet the equipment loads in the a. Provide access control with a keypad/card reader per space. security standards. • Floor loading (static and dynamic) capacity in the space b. Provide space for a security rack mounted server and shall be sufficient to bear both the distributed and wall mounted security panel with a 120 volt, 20 amp concentrated load of the installed equipment. A structural circuit on emergency power. engineer shall be consulted during the design to specify c. Provide security cameras per security standards for ER/ the floor-loading limit. If equipment that exceeds these TR rooms. limits is anticipated, the floors for the areas where the 8. Fire Protection: equipment will be moved and installed shall be a. Provide fire alarm and smoke detection as per the building appropriately reinforced. standard. • : b. Provide dry pipe pre-action system if the building has a • Painted white. (Refer to Brand Guidelines) wet pipe system and locate heads between rack aisles. • Construct perimeter walls from the floor to the i. This depends on the value of the equipment and or above with metal studs and drywall and infill with acoustic risk is at the site. insulation. ii. If it is determined to utilize a wet pipe system, locate • If storage of additional cabinets, cabling or equipment is sprinkler heads over the aisle and not directly over required, provide additional wall protection to reduce racks. damage to walls. (Refer to Building Standards) c. Provide a flexible fire stop system, which will permit • Provide 3/4” (20mm) white painted fire rated plywood on ongoing re-cabling without loss of rating if the walls are one wall for security panel, provider. fire rated.

DESIGN STANDARDS | WORKPLACE ENVIRONMENTS EQUIPMENT ROOM / TELECOMMUNICATIONS ROOM 4 • and/or other equipment. • Other: • The backboard shall be 1.2 m (4 ft) x 2.4 m (8 ft) • If a raised access floor is required, provide a high-pressure sheets, mounted vertically, with the bottom of laminate raised floor panels with a vinyl tile. Provide the plywood mounted 150 mm (6 in) above the sealed concrete or epoxy paint under the raised access finished floor with the best side toward the room. floor with appropriate height to support the ER/TR. Plywood shall be sanded smooth on the front side, A/C grade (sanded smooth on the front side) Ergonomics, Safety and Sustainability and finished with two coats of -retardant paint. • Ergonomics: Refer to the EHS and Sustainability design Plywood shall be painted prior to installation of any criteria. equipment without painting over the fire rated • Safety: Refer to the EHS and Sustainability design criteria, stamp/label. Plywood shall be permanently fastened including but not limited to walking surfaces, electrical service, to the wall by means of wall anchors utilizing lighting, cord and cable management and noise controls. galvanized, zinc plated, or stainless-steel hardware • Provide adequate space to account for safe movement, with a flat head. Finished installation shall have flush cabling, maintenance of equipment and emergency appearance with countersunk screw heads to egress. Provide adequate space for any work surface prevent splitting of the plywood. Drywall screws are requirements. not acceptable. • Provide adequate cooling and ventilation for maintenance • Flooring: and UPS batteries. • Provide electro-static dissipative, vinyl tile flooring • Provide adequate space and for eyewash if (ESD VCT) to avoid any static buildup, which could affect required (wet batteries). any electrical equipment. Color should be gray. • Sustainability: Refer to the EHS and Sustainability design • Wall base: criteria, including but not limited to energy efficient lighting. • 4” (100mm) rubber base. • Provide adequate space for spill kits for UPS batteries. • : • No ceiling is required in the ER/TR room except as Technology necessary for a positive ventilation cooling system. • Data and security to be provided as noted. • If a ceiling is required, provide a minimum 10’-0” (3000mm) ceiling height to accommodate overhead Signage cabling. (TIA-569-B clause 7.11.5.1.4). Lower ceilings due • Room identifier label for ER/TR. to existing building constraints need to be evaluated on a case-by-case basis. Specialties and Equipment • The ceiling structure shall be rated to handle the weight • Rack sizes are set with IT designation of Large/Medium/Small of cable trays and cables suspended by threaded rod ER/TR Rooms. which is currently estimated to be no more than 80 lbs. • Provide the cable tray and vertical cable management in black per linear foot of double layer 24” wide x 6” (600mm x if available. (Refer to Building Standards) 150mm) deep cable tray. • Determine the bonding bar location. • to be solid core with a minimum dimension of 4’ (1200mm) wide and 8’ (2400mm) high and sound absorptive Design References seals around the perimeter to prohibit sound transfer outside • Building Standards of the room. size may change based on room tiering. • Brand Guidelines: Refer to • Coordinate door hardware requirements with the security https://brand.delltechnologies.com/dell-facilities/ equipment. for Dell Brand Guidelines. • Swing doors out of the room if code allows. • EHS and Sustainability Design Criteria • Provide kick plates for door protection from carts or jacks • IT Standards carrying equipment. At a minimum, provide these on the • ANSI/EIA/TIA 569-C Commercial Building Standards for push side of the door. Telecommunications Pathways and Spaces. • Lighting, Power, Mechanical: (Refer to Building Standards) • NSI/EIA/TIA 607-C Commercial Building Grounding and • Provide LED fixtures with occupancy sensors. (Refer to Bonding Requirements for Telecommunications. Building Standards) • BICSI Telecommunications Distribution Methods Manual (TDMM) • NFPA 70--National Electric Code (NEC) 2017

DESIGN STANDARDS | WORKPLACE ENVIRONMENTS EQUIPMENT ROOM / TELECOMMUNICATIONS ROOM 5