The following information is for specific room and space types and is in addition to all previously stated standards listed in Divisions 01 - 34.
Refer to Division 27 sections on Communications for more guidance.
All previously noted accessibility requirements per OSHA and/or NEC must be followed in these spaces. Refer to Construction Standards 01 10 02 Accessibility Best Practices for OSU for guidance.
All work shall comply with OSU Construction Standards Division 27 (Campus Wiring Standards). No substitutions allowed.
Registered Communication Distribution Designer (RCDD) certification is required for anyone designing or specifying information technology space, pathways or cabling subsystems.
There are four major areas that must be accommodated in the design of a facility: Space; Power; HVAC; Pathways; Cabling.
NO sharing of space is allowed. These spaces may not double as a custodial closet, Alarm Panels, power breaker panels; storage, etc.
Coordination with OSU Information Services/I.T. Infrastructure Services is required during design.
Communication reach-in spaces shall have at a minimum one 36-inch door that swings out of the space with flush thresholds. Double 36-inch doors are preferred.
The TSER and TER may be combined to optimize space planning; this method is preferred.
Building Entrance Facility (BEF): This I.T. space is where the communications cabling enters the building from the campus tunnel or conduit system. Each building is required to have this space located near the electrical service entrance. This location is where primary and secondary protection is installed on all metallic cabling entering the building to protect building occupants and equipment from stray voltages, currents, and lightning strikes. This room must provide adequate space for the protection as well as cross connects to the building backbone cabling system. If the TSER is not combined with the TER described below, no special environmental conditioning is required beyond the general building HVAC.
Main Distribution Frame (MDF). This is a centralized and conditioned I.T. space that houses telecommunications equipment common to the building as a whole. Such equipment includes: Riser cabling subsystem, horizontal cabling subsystem; telephone system modules; local area networking equipment; specialized network services; other building-level telecommunications equipment. Only one TER space per building. The minimum space size being 12’x14’.
Telecommunications Rooms (TR): This is a centralized and conditioned I.T. space that houses equipment similar to MDF space but provides a much more limited function; typically serving a building level. The equipment in a TR provides service only to a floor or part of a floor within a building. The TR shall be centrally located to minimize cabling lengths. TR space sizes shall be at a minimum 10’x12’. Larger rooms are required depending on floor space of a building and services offered within the building.
TR wall construction shall include plywood backboards of 3/4" AC fire rated plywood, 8' tall, width is to be determined by project.
Coordinate the installation of basket tray pathways with all other construction within telecommunications room.
All I.T. spaces require air conditioning on a 24-hour-a-day, 7-day-a-week basis with standby power. The environmental limits of these rooms are 70°F to 75°F (70°F set point) and 30% to 55% relative humidity. Rooms must have a minimum illumination of 50 foot candles measured 1 meter form finished floor. If these rooms are located below grade, they must be equipped with a sump pump system on a standby power source. These rooms shall not be located under locations that would introduce water (kitchens, restrooms, etc.). Also, water, sewer, and/or steam lines are not allowed to pass through either the spaces. The doorways shall be a double door with 36” leafs that outward swing, that are lockable, that has removable mullions, and the threshold shall be flush with the finished floor.
BEF spaces shall be equipped with at least three 4” conduits at a minimum; stubbed to the campus utility tunnel for provision of campus telecommunications services to the building.
Building pathways shall consist of cable trays in hallways or other common and direct paths through the building. Conduits from station locations shall stub into the cable tray. The pathway shall stub into the serving BEF/MDF/TR. There shall be at least one spare 4” conduit running from each TR to the building MDF.
All conduits and pathways shall be designed in accordance with ANSI/TIA/EIA 569-B. Note: Conduit bodies (LB’s) are not allowed and strict adherence to bend radius shall be followed.
Work Area Outlets will be served by a minimum of 1" conduit from the cable tray. Bend radius must be observed, ANSI/TIA/EIA 569-B.
Work Area Outlets will be equipped with a 4” deep square box with a single gang mud ring.
Additional pathway requirements will be outlined during the detailed design process.
Information Technology Cabling and Contractor Prequalification’s.
Per OSU Construction Standards Division 27 (Campus Wiring Standards). No substitutions allowed.