Managed Switch, VLAN & Trunk
Access ports, trunks, VLAN planning, management, verification and documentation.
Open playbookTECHNICAL REFERENCE LIBRARY
Technical Guides for Network Installers
Use this page as the working index for Netcomtech's installer handbooks, testing guides, troubleshooting procedures and focused technical deep dives.
Installer Training Manual
Work through the technical subjects as a training sequence: physical layer, switching, wireless, power, security infrastructure and structured troubleshooting.
Open Installer Training ManualConfiguration and installation playbooks
These are procedure-driven guides. They focus on how to install, configure, verify, troubleshoot and hand over the system, plus what the client gains when it is done correctly.
Spanning Tree & LACP
Loop prevention, edge ports, port channels, failover and common bundle mistakes.
Open playbookCopper Install & Certify
Survey, pull, terminate, label, certify, diagnose failed parameters and hand over.
Open playbookOTDR Fibre Fault Finding
Launch and receive fibres, cleaning, event tables, reflections and bidirectional testing.
Open playbookWiFi Deploy & Tune
AP placement, channel width, transmit power, legacy rates, SSID overhead and validation.
Open playbookPoE Install & Troubleshoot
Real PD requirements, port mapping, switch budgets, cable faults and reboot diagnosis.
Open playbookRack Build & Airflow
Usable depth, rail fit, airflow, blanking, A/B power and commissioning.
Open playbookUPS Size & Install
Watts, VA, runtime data, PoE load, bypass, battery records and outage testing.
Open playbookIP Camera & NVR Design
Bitrate, storage, PoE, uplinks, VLANs, recorder limits and commissioning.
Open playbookNetwork Fault-Finding
Evidence capture, layer-by-layer diagnosis, counters, timestamps and controlled substitution.
Open playbookInstaller handbooks
Copper Cabling Installer Handbook
Structured cabling, pair geometry, permanent link vs channel, certification, Cat6 and Cat6A, PoE and fault diagnosis.
Open copper handbookFibre Installer Handbook
Inspection, cleaning, polarity, loss budgets, OLTS, OTDR, fault diagnosis and fibre handover.
Open fibre handbookWiFi Installer Handbook
Site surveys, RSSI, SNR, channel utilisation, RF planning, wired dependencies and validation.
Open WiFi handbookRack & Data Centre Handbook
Cabinet depth, rails, airflow, cable management, power, A/B feeds and commissioning.
Open rack handbookPoE Field Guide
IEEE PoE types, PSE and PD behaviour, switch budgets, cabling considerations and troubleshooting.
Open PoE guideSecurity, NVR & KVM Infrastructure
Camera networks, PoE, recording storage, switching, NVR planning and KVM infrastructure.
Open security and KVM guideTesting and troubleshooting
Testing & Certification Centre
Copper certification parameters, permanent link vs channel, fibre OLTS and OTDR testing.
Open testing centreNetwork Troubleshooting Centre
Layer-by-layer diagnosis for Ethernet, fibre, PoE, VLAN, DHCP and WiFi faults.
Open troubleshooting centreInstaller Checklists
Pre-installation, copper, fibre, rack, WiFi and project handover checklists.
Open checklistsSite Survey Centre
Requirements gathering, physical survey, wireless survey and evidence collection.
Open site survey centreCable Labelling Centre
Build a consistent user-defined cable identification system and printable labels.
Open labelling centreInstallation Drawings
Reference diagrams for copper, fibre, network, rack and power documentation.
Open installation drawingsFocused technical deep dives
Permanent Link vs Channel Testing
Understand the test boundary, adapters and limits used for copper certification.
Open guideCat6 vs Cat6A for 10GBASE-T
Alien crosstalk, qualification and why Cat6 does not have one universal 10G distance guarantee.
Open guideReading Cable Certification Results
Wiremap, insertion loss, NEXT, PSNEXT, ACR-F, return loss, delay and skew.
Open guidePoE Switch Power Budget
Separate endpoint load, per-port capability and total switch PoE budget.
Open guidePoE Device Not Powering
A controlled fault-finding sequence for powered devices and switch ports.
Open guideOLTS vs OTDR
Understand end-to-end fibre loss testing and event-level characterisation.
Open guideWiFi RSSI, SNR and Noise Floor
Use wireless RF measurements correctly instead of relying on signal bars.
Open guideWhy Gigabit Ethernet Runs at 100 Mbps
Diagnose pair faults, patch leads, device capability and negotiation settings.
Open guidePlanning and field tools
Advanced technical training
These chapters move beyond installation basics into access-layer security, multicast, QoS, optical diagnostics, capacity engineering and formal acceptance.
DHCP Snooping, Port Security & Storm Control
Protect the access layer from rogue DHCP, unexpected MAC use and traffic storms.
Open advanced guideIGMP Snooping & Multicast
Understand multicast forwarding, receiver membership and why video streams can flood.
Open advanced guideQoS for Voice & Video
Design trust boundaries, marking, policing and queues for congested links.
Open advanced guideFibre Transceivers & DOM
Match rate, wavelength, fibre, connector, distance and platform support, then use DOM properly.
Open advanced guideWiFi Capacity & Roaming
Separate RF coverage from airtime capacity and client roaming behaviour.
Open advanced guideLLDP & Network Discovery
Use neighbour discovery and port descriptions to make the live network traceable.
Open advanced guideDocumentation & Handover
Tie cable IDs, ports, VLANs, devices, power and test evidence together.
Open advanced guideCommissioning & Acceptance
Prove the installed system works, including redundancy and failure behaviour.
Open advanced guideCore infrastructure deep dives
Detailed practical guides covering routing, storage, copper termination, standards and fibre installation.
Router, Routing, NAT, DHCP & DNS
Default gateways, static routes, inter-VLAN routing, PAT, DHCP relay, DNS isolation and commissioning.
Open chapterDAS, NAS, SAN, iSCSI & Fibre Channel
File vs block storage, iSCSI, Fibre Channel, multipathing, MTU and architecture selection.
Open chapterRAID, Performance & Resilience
RAID capacity, parity, rebuilds, hot spares, IOPS, latency, cache and backup boundaries.
Open chapterRJ45 Crimping & Copper Termination
T568A/B, modular plugs, keystone jacks, pass-through plugs, conductor compatibility and testing.
Open chapterStructured Cabling Standards Explained
Category, Class, MHz, 90 m permanent links, 100 m channels, certification and MPTL.
Open chapterFibre Optic Cable Installation
Route planning, pulling, bend radius, tension, figure-eight handling, slack, cleaning and testing.
Open chapterFusion Splicing & Fibre Termination
Strip, clean, cleave, align, fuse, sleeve, tray, pigtails and test verification.
Open chapter