Knowledge · technical notes
What decides whether a handover passes first time.
Short, exact explainers on fibre types, polarity, testing, labelling and validation. Written for the hall floor.
OS2, OM4 or OM5: choosing fibre for a data hallWhat each fibre type is for, how far it runs at 100G, 400G and 800G, and why AI halls are moving to single-mode.Read the note MPO polarity: Methods A, B and C without the guessworkHow transmit meets receive across a trunk, the three methods, and the one rule that prevents most polarity failures.Read the note Tier 1 and Tier 2 testing: what LSPM and OTDR each proveLoss against a budget, or every event on the link: the difference, when a specification asks for both, and why results get rejected.Read the note Labelling to TIA-606: a scheme that survives handoverIdentifiers for spaces, cabinets, panels and ports, and why the label, the test result and the as-built must carry the same name.Read the note Certification is not validation: proving the system worksFrom link certification to channel validation: what each stage proves and what the client signs.Read the note
Field notes
Notes on mobilisation, vetting and handover.
Every field note we have published, from pre-mobilisation checks to work in live buildings.
European Mobilisation: The Fortnight Nobody Puts in the ProgrammeThe install is the straightforward part. The time that sinks European deployments is spent before anyone gets on a plane, and it is rarely on the programme.Read the note Bringing European Engineers Into the Johor–Singapore CorridorThe corridor is building fast and is short of people who can test and certify. What changes when you bring them in from Europe, and when local labour is the better choice.Read the note How to Choose a Data Centre Cabling Subcontractor: 9 QuestionsNine questions that show whether a subcontractor will hold your date. Written from the supplier's side, including the ones that are awkward for us to answer.Read the note Fourteen Confirmed Engineers, and Nobody on SiteA team can be confirmed, willing and ready, and still not get through the gate on Monday. The gap between confirmed and cleared is where European deployments fail.Read the note What We Check Before an Engineer Reaches Your SiteRight to work, ECS or CSCS, the cards for the scope, a reference and A1 certificates for EU work: what we check, and how we keep it current.Read the note The Pre-Mobilisation Checklist: 7 Things to Confirm Before Engineers Walk on SiteSeven checks that decide whether day one is productive or a paid morning in the car park, and what a pass looks like for each.Read the note
12 more field notes
What an AI Hall Changes for Cabling EngineersTwenty-two engineers, one month, one AI cluster in Johor: what changed on the floor when the racks were GPU racks, and what stayed the same.Read the note Why Fluke Results Get Rejected, and How to Build a Test Pack That Passes ReviewMost rejected results were set up wrong before the tester was switched on. How consultants review a pack, and how to run testing so yours passes.Read the note Cabling and the Critical Path: The Cost of Booking Engineers LastCabling sits at the end of the programme, so every upstream slip lands on it. How late booking turns it into the critical path, and what to book when.Read the note Working in Live Buildings: How to Get Invited BackThe rules for cabling work in an occupied building: out-of-hours windows, permits, protection and clean-down, and why they decide whether you are asked back.Read the note Cross-Border Deployments: The Work Before the WorkWhat goes into putting fibre engineers on site in another country, and why the paperwork decides the start date more than the splicing does.Read the note What a Good Handover Pack ContainsFive documents that decide whether your network can be maintained, and what each one costs you when it is done badly.Read the note The Cheapest Day Rate Costs More: Run the MathsWhat the lowest quote leaves out, and where those costs land by the end of the programme.Read the note How a mobilisation runsFrom the first call to engineers on site: what happens, in order, when a programme needs engineers it does not have.Read the note Walking the hall: what we check before handoverThe final walk before a cabling package is handed over, stop by stop: the drawings, the racks, the containment overhead and the test results.Read the note The data-centre skills shortage is a delivery riskPower and cooling get most of the coverage. Many programmes slip for a simpler reason: too few certified people to install and test the cabling.Read the note Why data centres replace cabling before it failsCabling degrades without warning. By the time it shows up in your error logs, it has already cost you throughput.Read the note No account managers. A founder answers for every job.What we do is not unusual. The difference is who picks up the phone and who is on the job.Read the note
Engineers who work to this standard.
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