/ Resources · System health
System health monitoring.
BMS dashboards, CCTV health metrics, UPS state, network capacity — the operational metrics that matter and the cadence to review them.
- Audience
- For facility managers
- Planning items
- 6
- Common mistakes
- 3
- Last reviewed
- 2026-05-17
System health monitoring is the daily operational discipline that catches issues before they become incidents. The metrics that matter are not the same as the metrics the dashboards default to. We publish this resource as a reference for FM teams structuring their system-health monitoring: the dashboards to set up, the metrics that lead, the cadences to review, and the escalation paths when the metrics drift.
Each metric reflects an operational failure mode the practice has seen multiple times. They are the metrics the senior FM watches when they want to know the building is healthy.
/ Common mistakes
What to avoid
Engineering portal
Related engineering topics
Engineering topic
Operations
Runbooks, preventive calendars, incident response, lifecycle planning — the engineering practice during the operational decades.
Engineering topic
Networking
Cat6A backbone, PoE++ access layer, AV/IT segmentation, Wi-Fi density engineering — the network that everything else rides on.
Engineering topic
Power resilience
Online UPS for sub-second bridging, LFP BESS for medium runtimes, DG for the long tail — sized as one resilient power stack.
Methodology
Methodology principles this resource builds on
maintenance
Preventive maintenance over reactive response
An AMC measured by ticket-close-time is failing; an AMC measured by preventive-event-cadence is working.
governance
Operational continuity through documented runbooks
Runbooks turn senior knowledge into operational repeatability. Without them, the FM team improvises every incident.
Interoperability
Interoperability matrices relevant to this resource
Interoperability
Wi-Fi density engineering — capacity over coverage
Premium Wi-Fi is sized for concurrent client density, not square-metre coverage. AP placement, channel plan and PoE budget are interlocked.
Interoperability
CCTV + PoE switching + storage — the IP surveillance triad
IP cameras need PoE switches sized for both power and bandwidth, and storage sized for retention × bitrate × camera-count.
Interoperability
UPS + BESS + DG — power resilience layering
UPS bridges short outages; BESS bridges medium ones with quiet headroom; DG handles long outages with switchover discipline.
Entity graph
Related engineering entities
technology
Wi-Fi 7 (IEEE 802.11be)
Current generation of Wi-Fi. Adds 6 GHz band, MLO multi-link operation and 320 MHz channels. Default for new premium deployments where dense-room capacity is the binding constraint.
protocol
Power over Ethernet (IEEE 802.3)
IEEE-standard delivery of low-voltage DC power over the same Cat-class cable as data. PoE+ delivers up to 30 W; PoE++ Type 3/4 up to 90 W — sufficient for IP cameras, APs, VOIP phones and small displays.
technology
Vertiv EnergyCore BESS
Vertiv's LFP battery-energy-storage cabinet line. Drop-in lithium replacement for VRLA banks on mission-critical UPS, with eight-year TCO advantages above 20 kVA.
Engineering toolkit
Tools that support this work
calculator
Network & PoE Calculator
Sized to year-three load — switches, Wi-Fi 7 access points, PoE budget, Cat6A run count, project cost. Cisco / HPE Aruba / Juniper-class enterprise gear.
calculator
BESS Sizer
Peak-demand and tariff curve in, indicative LFP battery size, annual savings and payback period out. Vertiv, Delta and Fuji-class deployments.
calculator
CCTV Coverage Calculator
Building dimensions and risk profile in, recommended camera count, retention storage and bandwidth out. Sized to NBC and IS-grade specifications.
· For facility managers · Last reviewed 2026-05-17