Sixteen questions from Port Morris owners, tenants, studio managers and depot operators, sorted by building type. The answers assume the building has changed use at least once, because almost every building here has.
Converted factories, lofts and creative offices
The provider's cable reaches our building through an old sidewalk vault that takes on water — can the entrance be moved?
Often, yes, and in a waterfront neighbourhood it is worth asking. Older New York commercial buildings often have vaults under the sidewalk, built for coal, boilers or freight, and carriers sometimes brought cable in through them because the opening already existed. If the vault leaks, the splice case or terminal down there sits in damp air or standing water. The fix is a new entrance: a sleeve through the foundation wall above the usual water line, or through a front or side wall into a dry room, with the carrier re-pulling its cable to the new point. We design the sleeve and the room, and the carrier moves its own facilities, so the change has to be coordinated with each provider in the building.
Before we sign a lease on an older industrial building, how can we find out which carriers can already serve it?
Ask three questions, in this order. First, ask the landlord which providers have equipment in the building today and where it sits; a provider with glass already in the cellar can usually serve a new tenant quickly. Second, put the exact address into each carrier's business-availability check, because coverage in this part of the Bronx changes from one block to the next. Third, have someone walk the building to see whether there is a clear path from the carrier's equipment to the space you would lease. We do that walk: we trace the route, note what has to be built, and give you a written estimate you can use in lease negotiations, including whether the landlord should pay for a riser that will serve future tenants as well.
Our lease may end when the owner redevelops the site — which parts of a fiber installation can a tenant take along when it moves?
The electronics travel; the glass usually stays. Switches, media converters, optics and patch cords belong to the tenant and come out in an afternoon. Cable that has been pulled through walls, sleeves and risers, and the enclosures fixed to the structure, generally become part of the building, and most leases say so. With redevelopment in mind, we design the job to keep the tenant's investment in portable equipment and keep the fixed part small: a short link from the building's existing riser rather than a new riser of your own, pre-terminated cables where they suit the route, and enclosures you can unbolt.
Can the fiber equipment share the main electrical room in a building with very large power service?
It is rarely the best place. Buildings converted from industrial use often have big switchgear rooms, and the electrical code requires clear working space in front of that equipment and limits what can be stored or mounted there. Fiber itself is not affected by the electrical fields around switchgear, but the switches and optics at each end are, in the sense that they need clean, dedicated outlets, moderate temperatures and a locked space the building's electricians do not need to open. We usually recommend a separate small room or a lockable cabinet on an adjacent wall, with the fiber passing the electrical room in its own pathway, and we confirm with the building's electrician before fixing anything nearby.
Studios, stages and event spaces
Our stage has to stay silent during takes — will fiber enclosures and switches add noise the microphones pick up?
The cable makes no sound at all; the active equipment can. Passive fiber enclosures and patch panels have no fans or moving parts, so they can sit on a stage wall without any acoustic effect. Switches and media converters with cooling fans are the issue, and they belong in a machine room or a closet outside the stage, connected to the stage wall panels by fiber. Where a device must sit on the stage itself, we use fanless models or mount them in an insulated, ventilated box away from the set. Because fiber carries no electrical current, it also cannot introduce hum or ground loops into audio equipment, which is one reason productions prefer it between stages and the control area.
We rent our loft for events a few nights a month — can visiting vendors get a network connection without touching ours?
Yes. The simplest arrangement is a dedicated vendor port: a labelled patch point, fed by its own strands or its own network segment from the building's enclosure, placed where caterers, sound engineers and ticketing staff usually set up. Vendors plug into that port and nowhere else. On the switch, that port sits on a separate network from your own equipment, so a visiting laptop or mixing desk cannot see your cameras or office systems.
Warehouses, depots, yards and shops
Our delivery fleet parks on the ground floor and the warehouse is upstairs — how does fiber get from dispatch to the upper bay?
Through a protected vertical route planned with the building's layout, not around it. In a two-level depot the ramp, the vehicle lanes and the racking all compete for the same columns and walls, so the riser goes where none of them will reach: typically a column line or wall at the building's edge, inside steel conduit up to a height above any vehicle, then into tray on the upper level. A pair of enclosures, one beside the dispatch office and one on the warehouse floor, holds the splices and the switches.
The electric-van chargers in our fleet garage need a network connection — is fiber worth running to them?
For a row of chargers far from the office, often yes. Networked chargers report usage, take software updates and are controlled by the fleet's management system, and they work far better on a wired connection than on cellular modems in a concrete garage. Because chargers are usually spread along a parking level, a single fiber link to an enclosure at the middle of the row, with short copper drops from a small switch to each charger, covers them all and stays well clear of the chargers' heavy power cables. The electrical work for the chargers themselves is a licensed electrician's job; we provide and test the data link and coordinate the routes so the two never share a raceway.
Can fiber run through a metal fabrication or welding shop where sparks and hot slag fly?
Yes, if it is kept out of the hot zone. Fiber jackets melt like any plastic, so cable in a fabrication shop runs high on the walls or overhead, away from welding bays and cutting tables, and drops to devices only inside steel conduit. Interlocking-armored cable adds protection along routes near grinders and plasma cutters. Enclosures are metal, mounted on walls that spark showers do not reach, and closed with sealed entries to keep out metal dust, which can foul connectors.
Does fiber get stolen for scrap the way copper cable does?
Very rarely, because it has little scrap value. Copper theft from vacant and industrial buildings is a well-known problem, and thieves strip it for the metal. Optical fiber is glass with a plastic jacket and, in armored versions, a thin steel or aluminium wrap, none of which is worth much to a scrap buyer. In yards and vacant sections of a building we run it inside conduit, label it clearly as fiber optic cable, and keep enclosures locked, which together discourage anyone looking for metal.
We sublease from a company that itself leases the land from the State — how many sign-offs does a new fiber entrance need?
Usually two or three, and they come in a set order. On land like the Harlem River Yards, the State leased the property to a master developer, which in turn subleases parcels and buildings to businesses. A new hole in your building's wall may need only your landlord's consent, but a trench across the yard, a link to a neighbouring parcel or a new conduit from the street can need the master lessee's approval and sometimes the State's as owner. We prepare one scope with drawings, cable types and a timetable that your landlord can forward up the chain, which keeps everyone reviewing the same document and avoids starting work that has not been approved.
Will exterior conduit on our street wall get tagged or broken, and how is it protected?
Anything on a street-facing wall in a busy neighbourhood can attract paint or damage, so we keep exterior runs as short and as high as practical. Where fiber has to run outside — up a rear wall, along a yard fence or to a pole camera — it goes in rigid steel or heavy-wall conduit with tamper-resistant fasteners, and any pull box is a lockable metal enclosure rather than a plastic one. Conduit can be painted to match the brick, which also makes it less of a target.
Is there any help for industrial businesses in the Port Morris Industrial Business Zone that are planning a network upgrade?
There is a place to ask. The South Bronx Overall Economic Development Corporation, SoBro, describes itself as the Industrial Business Solutions Provider for all five of the Bronx's Industrial Business Zones, Port Morris among them, and offers business services to companies inside those zones. What it can offer changes over time, so contact SoBro directly about current programmes rather than relying on any figure you read online. If a programme needs a written scope or quote, we can provide one that lists each item separately, so the business can submit it without reworking our proposal.
New towers and brownfield sites
Our new building sits on a cleaned-up brownfield with a vapour barrier under the slab — can fiber conduit pass through it?
Only with the environmental engineer's approval and a sealed detail. Port Morris has a long industrial history, and some new buildings sit on sites cleaned up under city or state programmes, which can leave engineering controls such as a vapour barrier or a sub-slab ventilation system under the ground floor. Every pipe and conduit that passes through that layer has to be sealed in the way the engineer specifies, or the barrier stops working. Wherever possible we bring fiber in above the slab, through a foundation or exterior wall, so the barrier is never touched. If a below-slab conduit is unavoidable, it is installed before the slab is poured, with the engineer's boot or seal detail, rather than cored in later.
Our new tower has post-tensioned concrete floors — how do you core through them without hitting a tendon?
By not coring until the slab has been scanned and the location approved. Post-tensioned slabs carry steel tendons under high tension, and cutting one is dangerous and expensive. Before any new penetration in a newer building we ask for the structural drawings, scan the area with ground-penetrating radar to map tendons and reinforcing, mark a clear spot, and get the building's engineer or management to approve it in writing. In practice we prefer to avoid new cores altogether by using the sleeves the contractor set in the telecom closets during construction; when those are in place, a riser goes in quickly and the slab is never touched.
Our rental building has a resident co-working lounge — should it run on the building's own fiber or on a resident's internet account?
On the building's own connection, kept separate from residents' service. A shared lounge used by many residents should not depend on one resident's account or router, and the building's managed network for cameras, access control and elevators should not be shared with lounge users. The usual design is a building-owned circuit for amenity spaces, fed over the building's fiber to a small switch serving the lounge's access points, on a network segment of its own.
