· Specification starter / CCTV / video surveillance
CCTV / video surveillance
scope outline.
ONVIF-class IP cameras, VLAN-segregated VMS, design-led FOV/PPM coverage. Coordinated with structured cabling, PoE switching and access control for event correlation.
In scope
Camera selection by use case (identification/recognition/observation/detection) • FOV/PPM design against the floor plan • VMS server sizing and retention design • VLAN / QoS posture on the surveillance bus • ONVIF integration and analytics rule baseline • Forensic export workflow documentation
Out of scope
Structured cabling beyond camera tail (separate networking scope) • Building's public-area lighting upgrades for low-light cameras (architect scope) • Vendor-specific cloud subscriptions beyond commissioning year
· Documents required
Materials the consultant needs before specification starts.
Architectural plans with line-of-sight obstructions
Occupancy and shift schedule (drives retention)
Privacy / data-protection policy
Existing network topology if retrofit
· Site survey
Pre-design walk-through verifications.
Identify all outdoor cameras' enclosure exposure (sun, monsoon, salt, dust)
Mount-point reach — every camera reachable from a single ladder or basket lift
Existing PoE budget on switches if retrofit
Low-light walk-through to confirm need for IR or thermal
Operator-room ergonomics and display-wall sightline
· Deployment checklist
Engineering items every install of this discipline carries.
Per-camera FOV cone marked on the floor plan with PPM band
PoE budget audit per switch with 25% headroom for camera growth
VLAN segregation: CCTV bus, NVR back-end, operator workstation
Retention design with RAID redundancy on VMS storage
Analytics rule baseline documented per camera
Forensic export procedure tested at commissioning
· Coordination with other trades
Works owed to / from other disciplines.
Networking: VLAN provisioning, QoS prioritisation, PoE budget
Access control: card-swipe event correlation on VMS bookmark
Power: dedicated UPS rail for NVR and operator workstation
Lighting: scene-lit areas matched to camera low-light spec
Architectural: conduit headroom for camera growth
· Commissioning
Measurable artefacts produced at handover.
Per-camera live-view test with measured PPM at target distance
NVR RAID rebuild test on a single-drive failure simulation
Analytics rule false-positive rate over a 7-day baseline window
Operator workstation drill — locate, review, export an event
Configuration baseline export (camera list, retention, rules)
· Handover
What the building team takes ownership of.
Camera register: position, FOV, PPM band, IP, MAC, firmware
Analytics rule documentation
VMS user permission matrix
Forensic export SOP
AMC visit schedule with seasonal pre/post-monsoon enclosure inspection
· Risk register starter
Risks worth tracking from day zero.
Camera count growth eroding PoE budget headroom
Outdoor enclosure seal failure on monsoon-belt sites
VMS retention silently degrading as resolution increases
Analytics rules going stale after occupancy change
· Exclusions and assumptions
What is not in scope; what we assume to be true.
Excludes thermal cameras unless explicitly listed in the scope
Assumes network backbone available with VLAN segregation capability
Excludes cloud-archive subscription beyond commissioning year
· Where to go next