Structured Cabling and Racks for UAE Offices: Cat6 vs Cat6A, Point Counts and Rack Sizing
Cabling is the cheapest part of an office network to do properly and by far the most expensive to do twice. Everything here is decided while the ceiling is still open: cable category, how many points, where the rack goes. Get those three right and the network that follows is straightforward.
The six subsystems, in plain language
| Subsystem | What it is | In a typical UAE office |
|---|---|---|
| Entrance facility | Where the e& or du line enters the building | The riser cupboard or the landlord comms room |
| Equipment room | The main rack holding the gateway, core switch and servers | Usually one cabinet in a store or IT room |
| Backbone cabling | Links between floors or buildings, usually fibre | Fibre riser to each floor, on SFP modules |
| Telecom room | A rack or cabinet on each floor | One wall cabinet per floor on multi-floor sites |
| Horizontal cabling | Cat6 or Cat6A from the floor patch panel to every outlet | The bulk of the work and the cost |
| Work area | The wall or floor-box outlet and the patch lead to the device | Two points per desk plus ceiling points |
Cat6, Cat6A, Cat7: what to actually pull
| Cat6 | Cat6A | Cat7 / Cat8 | |
|---|---|---|---|
| Gigabit to the desk | Yes | Yes | Yes |
| 10 Gbps | Up to about 55 m | Full 100 m | Yes, but |
| Thickness and handling | Easy | Thicker, stiffer | Thicker still |
| Cost per metre | Lower | Higher | Highest |
| Connector | RJ45 | RJ45 | Non-standard (Cat7) or short-run only (Cat8) |
| Right for | Desk outlets, most of the office | Access points, risers, multi-gig areas, future proofing | Data centre or specialist use, not office horizontals |
The practical recommendation for a UAE office: Cat6 to desks, Cat6A to every ceiling access point and anywhere you might put a multi-gigabit device later, fibre between floors. Many fit-outs now pull Cat6A everywhere and accept the extra containment, on the logic that the cable is cheap and the ceiling only opens once.
One more thing that costs nothing to get right: the whole channel must match. Cat6A cable on Cat6 outlets is a Cat6 link, and you paid for Cat6A.
Counting data points
Almost every office under-counts, then runs desk switches under tables for the next five years. Count like this:
| Location | Points |
|---|---|
| Each desk | 2 (one spare is cheaper than one retrofit) |
| Each meeting room | 2 at the table, 1 at the display, 1 for a room system |
| Each ceiling access point | 1, Cat6A |
| Each camera and access control reader | 1 |
| Each printer or MFP | 1 |
| Reception | 2 plus 1 for a visitor display |
| Server room / rack | 4 spare |
| Wall displays and signage | 1 each |
| Warehouse and outdoor | 1 per access point, 1 per camera, 1 per scale or terminal |
Add 20 percent for change. Layouts move, a meeting room becomes an office, someone adds a second printer. Spare points at fit-out are almost free; new points afterwards are a ceiling job, an out-of-hours job, and a mess.
Racks: sizing in U and where to put them
Racks are 19 inches wide internally and measured in U, where 1U is 44.45 mm. Two dimensions matter as much as height: depth and position.
| Rack | Typical use | Depth |
|---|---|---|
| 6U wall cabinet | Very small office: patch panel, switch, gateway | 450 to 600 mm |
| 9U to 12U wall cabinet | Standard small to medium office, room to grow | 600 mm |
| 18U to 27U floor cabinet | Larger office or a floor with several switches and a UPS | 600 to 800 mm |
| 42U floor cabinet | Server room, servers plus network plus UPS | 800 to 1,000 mm |
| Sealed / IP-rated cabinet | Warehouse, workshop, site office | As required |
Sizing method: add up the U of everything going in, then add 30 to 50 percent. A patch panel for 24 points is 1U, a cable manager between panels 1U, a switch 1U, a gateway 1U, a rack UPS 2U. That is 6U of equipment, so a 9U or 12U cabinet, not a 6U cabinet you will be replacing in a year.
Position: central enough that no point exceeds 90 m of cable route, in a space that is air-conditioned or at least well ventilated, lockable, with a proper power circuit and no water pipes overhead. A cupboard sharing a wall with the pantry sink is not the place.
What goes in the rack, in what order
- Patch panel at the top, where the horizontal cabling terminates. One panel per 24 points, with a cable manager below it.
- Switches below the panel, so patch leads are short and tidy. Never terminate horizontal cable straight onto a switch.
- Gateway or firewall below the switches.
- Servers and NVRs in the middle, where they have airflow.
- UPS at the bottom. It is the heaviest thing in the cabinet and belongs low for stability.
- PDU vertical at the rear or 1U horizontal, with enough outlets for everything plus two spare.
- Blanking plates in unused U spaces on any rack with servers, so cooling air goes through the equipment instead of around it.
Power, cooling and the UAE summer
- Dedicated circuit. The rack should not share a breaker with the pantry kettle.
- UPS sized for a clean shutdown, typically 15 to 30 minutes, covering the switches and gateway as well as the server. If the switch dies, phones and cameras die with it.
- Cooling is the UAE-specific item. A closed cabinet in an unconditioned store room in August is an oven, and switch power supplies and fans are what fail. Either put the cabinet in air conditioning or fit fans and ventilation and keep the door vented.
- Dust. During fit-out, keep the cabinet closed and covered. Construction dust in a switch is a shortened life.
- Cable management. Horizontal managers between panels and switches, vertical managers at the sides. Tidy is not cosmetic: it is what makes the next change safe.
Labelling, testing and documentation
- Label both ends of every cable with the same identifier, and put the same identifier on the outlet and the patch panel port. Ten minutes at install, hours saved every year after.
- Test every point with a certification tester and keep the results. This is what proves the channel actually meets Cat6 or Cat6A, and it is the only defence when a link misbehaves a year later.
- Keep a port map: which patch panel port goes to which outlet, and which switch port each is patched into.
- Photograph the rack when it is finished and clean. It is the fastest way to see what changed.
- Record the IP plan and VLANs somewhere that is not only on the device itself.
The fit-out sequence
- Order the operator line the day the lease is signed. It is the longest lead time on the project.
- Mark points on the floor plan with the fit-out contractor: desks, access points, cameras, printers, displays, rack position.
- Containment and pulling while the ceiling is open. This is the moment that cannot be repeated cheaply.
- Terminate onto patch panels and outlets, then certify and record every point.
- Install the cabinet, PDU and UPS, then switches and gateway.
- Mount access points and cameras, patch, and configure VLANs before anyone connects.
- Hand over the documentation: port map, test results, IP plan, credentials in a password manager.
Send the floor plan and we will count the points
Floor area, desk positions, meeting rooms, cameras and access points, and where the rack can go. We come back within one working day with a point count, cable specification, cabinet size and an installed price.
Questions we get asked
What are the six components of structured cabling?
The entrance facility where the operator line enters the building; the equipment room or main rack; the backbone cabling between floors or buildings; the telecommunications room on each floor; the horizontal cabling from each floor patch panel out to the work areas; and the work area itself, meaning the wall outlet and the patch lead to the device. Smaller UAE offices often merge the first four into one cabinet, which is fine as long as it is a real cabinet.
Is Cat6A much better than Cat6?
For most desk connections, no: both carry gigabit comfortably, and Cat6 already handles 10 Gbps over short runs. Cat6A guarantees 10 Gbps over the full 100 m and is better shielded against interference. Where it genuinely pays is on runs to access points and anywhere you expect multi-gigabit later, because re-pulling a cable through a closed ceiling costs many times the price of the cable.
What are the disadvantages of Cat6A?
It is thicker and stiffer, so it fills containment faster and is harder to dress neatly; it costs more per metre; shielded versions need proper grounding to work as intended, and badly grounded shielded cable performs worse than good unshielded; and it needs Cat6A outlets and patch panels to reach its rating, so the saving of mixing components disappears.
Do Cat6 and Cat6A use the same connector?
Yes, the same RJ45. The connector is identical, which is why mismatched installations are common: Cat6A cable terminated on Cat6 outlets performs as Cat6. The whole channel, cable, outlet, patch panel and patch leads, has to match the category you paid for.
What about Cat7 and Cat8?
Cat7 never became a mainstream structured-cabling standard for offices and uses connectors that most equipment does not take. Cat8 is a short-run data centre cable, typically under 30 m, not an office horizontal cable. For a UAE office in 2026, the real choice is Cat6 or Cat6A, plus fibre for backbone.
What is a standard server rack size?
Racks are 19 inches wide internally, which is the standard everything is built to, and are measured in height units: 1U is 44.45 mm. Common sizes are 6U, 9U and 12U wall cabinets for offices, and 27U or 42U floor cabinets for server rooms. Depth matters as much as height: 600 mm deep suits switches and patch panels, 800 to 1,000 mm is needed for servers and UPS units.
How do I calculate the rack size I need?
Add the U height of everything going in: patch panel 1U or 2U, cable manager 1U between panels, switch 1U, gateway 1U, UPS 2U, server 1U to 4U each. Then add at least 30 to 50 percent spare for growth and airflow. A typical small office adds up to 6U of equipment, which means a 9U or 12U cabinet, not a 6U one.
What does 1U, 2U, 3U mean?
A rack unit, 44.45 mm of vertical space. A standard switch is 1U, a small UPS 2U, a rack server 1U or 2U. Equipment is designed in these increments so anything fits any 19-inch rack. A 42U rack is therefore about 1.87 m of usable height.
How many servers fit in a 42U rack?
Physically, up to about forty 1U servers, but nobody does that: you also need the switches, patch panels, cable managers, PDUs and UPS, and you need airflow. A realistic loaded 42U rack holds perhaps twenty to thirty 1U servers plus network equipment, and in most UAE offices a 42U rack holds far less than that and is bought for growth.
Do you supply and install cabling?
We supply cable, outlets, patch panels, patch leads, cabinets and accessories, and we install for offices and small sites across Dubai and the northern emirates. For large fit-outs we work alongside the main contractor: they pull, we terminate, test and commission the active equipment. Tell us the floor plan and the point count and we will quote.
Written by the IRIX networking team in Bur Dubai. Browse cables and connectors, racks and cabinets, switches and UPS units. Supply and installation across Dubai and the northern emirates.