The Columbus Regional Airport Authority (CRAA) hereby issues addenda to the subject solicitation:

February 13, 2015 NOTICE OF ADDENDUM ADDENDUM #4 Subject: Date Due: Wireless System Design and Replacement; Request For Proposals (RFP) # FIT-2015-001 February 23, 2015 at 2:00 PM EDT Dear Sir or Madam: The Columbus Regional Airport Authority (CRAA) hereby issues addenda to the subject solicitation: 1. Responses to questions received in relation to Wireless System Design and Replacement, RFP # FIT-2015-001 (see Page 2 below). 2. Responses to questions asked during the Pre-Proposal Meeting held on February 6, 2015. Unless otherwise stated, your response shall be considered as including this addendum. Should you have any questions or need additional information, please contact Katie Heisler, at kheisler@columbusairports.com. Thank you for your interest in doing business with the Columbus Regional Airport Authority. Sincerely, Katie Heisler Katie Heisler, CPPB Contract and Procurement Specialist Office of Contracts and Procurement cc: file

ADDENDUM #4 Subject: Date Due: Wireless System Design and Replacement; Request For Proposals (RFP) # FIT-2015-001 February 23, 2015 at 2:00 PM EDT QUESTION 1. Where are IDFs located? ANSWER 1. The Telecommunication Rooms (TRs) are all identified on the maps provided (designated by TR before the rest of the room number). QUESTION 2: Can we get the CAD versions of the maps? ANSWER 2: Yes; please contact Katie Heisler at kheisler@columbusairports.com to receive these. QUESTION 3: Are CAD drawings to scale? ANSWER 3: Yes. QUESTION 4: Can we receive information on wall compositions? ANSWER 4: Yes; please see ANSWER #2 above. QUESTION 5: Has the CRAA proposal evaluation team been assembled, and if so can you identify them? ANSWER 5: Yes, the internal team has been assembled and represents multiple internal stakeholders. CRAA does not provide the individuals names since all communication during the RFP process must funnel through the Office of Contracts and Procurement (Katie Heisler at kheisler@columbusairports.com). QUESTION 6: What is the plan to install the cabling for the APs? ANSWER 6: Refer to RFP Sections 3.2.2, 3.2.3, 3.4.5.2 and 3.4.6 for information on the cabling portion of the project. QUESTION 7: Where are cable pathways coming from? ANSWER 7: There are some existing pathways that can be used, but per RFP Section 3.2.2 the CRAA Cabling Architect will provide the cabling design based on the selected Contractor s AP and head-end design needs. The Contractor can then submit the cabling price for the project to CRAA. Page 2 of 10

QUESTION 8. The Contractor is responsible for the cabling installation, but not the cabling design? ANSWER 8: Correct; please see ANSWER #6 above. QUESTION 9: Current cabling is not shown on the CAD drawings, correct? ANSWER 9: No, it s not. QUESTION 10: Existing Motorola needs to be in place and maintained. existing cabling? No ANSWER 10: Existing cabling and new cabling will not be in the same pathways. QUESTION 11: We can t do a cabling design until an award is made, correct? ANSWER 11: CRAA expects proposers to create a predictive model for AP placement, with pricing for that, but understands that a formal analysis by the selected Contractor may require some AP design/quantity changes. The cabling portion of the design can t be completed until a Contractor is selected. QUESTION 12: Is this a prevailing wage project? ANSWER 12: No. QUESTION 13: If APs must be hidden, what materials will we be working with? ANSWER 13: CRAA has not dictated that APs have to be hidden. Proposers can propose their own design recommendations. QUESTION 14: For coverage on the jet bridges, do we assume cabling has to run through race ways on the jet bridges even when the jet bridges collapse down? ANSWER 14: Proposals must address how coverage on jet bridges will be handled; CRAA is not dictating that methodology, but rather expects proposers to include recommendations with their proposals. QUESTION 15: Cisco and Aruba equipment was specified in the RFP. Will CRAA consider other Cisco or Aruba equipment that wasn t named in the RFP? ANSWER 15: CRAA vetted the specific equipment named in the RFP, and this is the only Cisco and Aruba equipment that will be considered. Page 3 of 10

QUESTION 16: Does CRAA have a required brand of antenna that must be used in the proposal? ANSWER 16: No. QUESTION 17: Is power available at the end of the jet bridges? ANSWER 17: Yes. QUESTION 18: Where is the outdoor coverage required? ANSWER 18: It must cover the jet bridges to their fully-extended positions, the ramp areas between any jet bridges, and the personnel and passengers in or around the planes that are parked at jet bridges. Contact Katie Heisler at kheisler@columbusairports.com to receive a drawing of the required perimeter coverage area. QUESTION 19: What is the load spec that you re looking to hit? Example, if there s a dust bowl breakdown, what percentage? And should we assume dual radio? Do you want this modeled off of the industry standard? ANSWER 19: CRAA wants the proposers recommendations and guidance on industry models. Proposers should assume, at a minimum, dual radio; tri, or better, radios would be preferred. Proposers should primarily be designing for 5GHZ; there are 2.4GHZ considerations but CRAA wants an 802.11ac design. QUESTION 20: What is the daily customer count and trend analysis? ANSWER 20: Approximately 6.2 million annually, averaging to 17,000 a day. More detailed historical statistics can be found at: http://flycolumbus.com/airlineinfo/airline-stats/. QUESTION 21: CRAA wants density calculated as 25,000 maximum users at a time? ANSWER 21: Yes. QUESTION 22: As far as interferers how are you dealing with them? ANSWER 22: Currently, some CMH tenants are providing their own separate Wi- Fi. CRAA is looking toward a shared infrastructure in the near future since CRAA already provides this for some tenant utilities/services. QUESTION 23: Are we implementing into a production environment? ANSWER 23: Yes. Page 4 of 10

QUESTION 24: CRAA is looking for a shared environment? ANSWER 24: Yes. QUESTION 25: Will the Airport be appointing any additional staff dedicated to the project? ANSWER 25: Tim Ault is the designated Project Manager for this project. Upon award, all communications will route first through him. QUESTION 26: Do you anticipate monetizing the solution? ANSWER 26: The Guest network will be free. Providing the service to Airlines would carry a fee. QUESTION 27: Tiered infrastructure? Do we include recommendations for how CRAA should manage this in our response? ANSWER 27: Yes, proposers should include recommendations in the response. CRAA s Guest Network has its own dedicated internet. QUESTION 28: This is a fixed fee response, but that doesn t include cabling, correct? ANSWER 28: Per Section 3.2.2 of the RFP, the CRAA Cabling Architect will provide the cabling design based on the selected Contractor s AP and head-end design needs. The Contractor can then submit the total cabling price for the project to CRAA. The RFP Price Proposal Form is requiring unit pricing for cabling installation and elements initially so that CRAA can have some basis to evaluate cabling costs between different proposals. QUESTION 29: Does CRAA expect an estimate for cabling in the RFP response? ANSWER 29: See ANSWER #28 above. QUESTION 30: Can we get clarification for coverage needs in the garage? ANSWER 30: The Garage is an optional item that proposers may include, with the exception of the tunnel leading to the Garage, which is mandatory. QUESTION 31: Is it acceptable to include pricing for full coverage of the Garage? ANSWER 31: Proposers may include pricing for full Garage coverage, but the specific current project funding only covers work in or attached to the Terminal building itself. The Garage would be a subsequent phase with future funding. Page 5 of 10

QUESTION 32: What are the maximum clients outdoors? ANSWER 32: Please contact Katie Heisler at kheisler@columbusairports.com to receive a drawing of the perimeter coverage area with maximum user densities. QUESTION 33: Does CRAA have a preference for VMs? ANSWER 33: CRAA is open to proposed suggestions in the RFP responses. QUESTION 34: Are Rickenbacker and Bolton part of this project? ANSWER 34: They are not part of this specific scope, but are being considered for future subsequent projects. The Wireless solution needs to be able to scale to include those Airports if required in the future. QUESTION 35: What is the average time for application for a CRAA badge? ANSWER 35: Refer to the Draft Agreement, Schedule A, item #14, on Page 79 of the subject RFP PDF. QUESTION 36: Will the payment schedule invoicing be based on acceptance of phased work? ANSWER 36: Each Task Order under the resulting Master Agreement will specify the agreed-upon payment schedule. Proposers should include suggestions on milestone payment schedules tied to deliverables within the RFP response. QUESTION 37: As phases are done, since there are existing are you going to be able to pull in time? ANSWER 37: Yes. QUESTION 38: [Regarding] the basement coverage area, page 4 of 6 on the Wireless User Maximum Density document. Can you further define the coverage area for the basement where no user density is supplied? To further elaborate, is the coverage only needed for the non-public area or will the tunnel need coverage? ANSWER 38: There are no permanent users in the tunnel, but coverage is needed for safety reasons if and when someone passes through the tunnel. The tunnel is to be covered at a minimal level (i.e. perhaps only three (3) APs would be needed: one at each end and one in the middle of the tunnel). Page 6 of 10

QUESTION 39: Our design for the jet bridge access points should allow for passengers and crews in the planes at the gates to access the wireless connection, correct? ANSWER 39: Yes. QUESTION 40: Can you further define the "parking pads" on the arrival and departure levels? ANSWER 40: Pages 1 and 2 of the Wireless User Maximum Density PDF illustrate the user numbers that include the parking pads on either end of the Ground Transportation lanes outside the Terminal (on Arrivals and Departures Levels). QUESTION 41: What phase is the tunnel from the parking garage to the terminal included in? ANSWER 41: Phase 6 as indicated on Page 3, BASEMENT TR SERVICE AREAS of the CMH TR Service Areas and Wireless Project Phases PDF. QUESTION 42: Can we clarify that there is only 40 existing AP's that need to be removed? ANSWER 42: There will not be more than 40 APs that need to be removed as part of this project. There could be less depending on if any fail between now and go-live of the new Solution. QUESTION 43: Can the CRAA please provide the Exhibit B Price Proposal Form in editable format? ANSWER 43: Yes; please contact Katie Heisler at kheisler@columbusairports.com to receive an editable version. QUESTION 44: Will lift usage require off-hours for use of cable and AP mounting? ANSWER 44: Yes, but in non-public areas it could be used during normal business hours. Contractor must coordinate lift usage scheduling with the CRAA PM. Proposal should include any assumptions regarding lift usage. Page 7 of 10

QUESTION 45: Will naming conventions for cable and panel IDs need to be submitted prior to work? Is there a recommended naming and labeling that CRAA would like to have? ANSWER 45: Yes; per Section 3.2.7: all Solution equipment shall be labeled according to CRAA guidance (i.e. industrial-strength adhesive labels, CRAA numbering convention). CRAA will provide this information to the selected Contractor. CRAA s PM and Cabling Architect will also confirm that the selected Contractor understands the expectations for cabling installation work based on the CRAA Cabling Standards prior to starting the work. QUESTION 46: How many Techs will be allowed on-site (if escorted) during installation? Or is there no limit? ANSWER 46: There is no limit, but all techs must have CRAA Badges. QUESTION 47: Will proposed schedule (ea. Phase) have to have a planning schedule submitted or can the entire phase/demo be submitted at 1x? ANSWER 47: Per Requirement 3.4.1, Proposers must submit a proposed schedule/project plan that encompasses all anticipated phases and activities required for the entire project, with the understanding that work must be coordinated with the TMP work and the targeted phasing described in 3.4.5.2. QUESTION 48: What qualifications are being requested other than certifications of solution? Will previous experience [in] fiber and cabling be accepted? ANSWER 48: Refer to the CRAA Cabling Standards, per RFP Section 2.1. QUESTION 49: Can talkies be used while in airport for tech communications? ANSWER 49: Yes. QUESTION 50: Who is determining adequate tech for job? ANSWER 50: Per Requirement 3.4.6, and Evaluation Criteria 4.3 Ability and Capacity of the Proposer, Proposers must ensure that all resources are sufficient to meet the schedule and scope of the project. Additionally, personnel must meet any certification and/or experience requirements detailed in the RFP (i.e. CRAA Cabling Standards, Evaluation Criteria 4.2 Experience and Past Performance, etc.). QUESTION 51: Will PM be available for consultation during hours of demo? ANSWER 51: Yes. Page 8 of 10

QUESTION 52: Will a List in writing be supplied by CRAA/GIS-drawings that will provide some sort of ID for Voice vs. data cable. i.e. Existing paths that can be used for tracing? ANSWER 52: The CRAA Cabling Architect will handle all design work. CRAA doesn t differentiate between voice and data; everything is a CAT6A drop. QUESTION 53: On removal of equipment and cable: does CRAA want to recycle or contractor to remove (I understand AP s return, but all other?)? Will there be some sort of request by CRAA for return? ANSWER 53: Refer to RFP Requirement 3.4.10. QUESTION 54: What is the liability of contractor on DEMO i.e. tiles flooring, walls and any other pertinent demolition damage that can occur? ANSWER 54: If demolition is part of the installation process, then yes, that demolition would be the Contractor s responsibility to repair. Also refer to RFP Requirement 3.4.5.3. QUESTION 55: Will onsite attic stock be noted for access on as need or TMP requisition? Inevitable damage will occur. ANSWER 55: It will be available on an as-needed basis, coordinated through the CRAA PM and the Contractor. If separate TMP contractors damage finishes, the TMP project will replace the finishes under that project. QUESTION 56: Will trash have designated removal locations? ANSWER 56: Yes; the CRAA PM will coordinate this with the Contractor. QUESTION 57: Cabling is to be installed by an approved contractor. Who are the CRAA approved contractors? ANSWER 57: Per Section 3.4.6.1 of the RFP, Contractor must engage subcontractor(s) who meet the certification/experience requirements detailed within the CRAA Cabling Standards (see Section 2.1). CRAA did not publish an "approved contractor" list because if a proposer has verified that a cabling subcontractor meets these certification and experience requirements, then use of that subcontractor is acceptable. Page 9 of 10

QUESTION 58: Without an approved design it will be difficult to ascertain the total cost of the new cabling infrastructure. Can the cabling portion be bid as a separate project after a design has been selected? ANSWER 58: CRAA's intention is that once a final cabling design is created/approved by CRAA and the selected Contractor, the Contractor will then formalize the cabling portion of the total project cost. CRAA is only asking for unit pricing on cabling installation and elements in order to form a basis for initial cabling cost comparisons among proposals. QUESTION 59: Is this project being done at prevailing wage? ANSWER 59: No. QUESTION 60: Can I get a list of the different Systems Integration Companies that attended the [Pre-Proposal Meeting] session? ANSWER 60: Yes, CRAA will publish the attendance sheets on the CRAA website. QUESTION 61: Will [CRAA] allow the successful proposer, within the managed service agreement, to operate a public Internet concession based on a business model which includes free access supported by advertising along with premium tier paid access? ANSWER 61: No; CRAA s model is a guest Wi-Fi that is completely free with no advertising. QUESTION 62: Can we provide a 100% Bid bond guarantee and Performance Bond? ANSWER 62: It appears to just be a difference in vernacular between bid bond versus proposal bond as used in the RFP, but yes, Proposers may do this as long as there is a 100% Performance Bond. Page 10 of 10