ELV equipment: cameras, access, LAN, public address

Extra-low voltage covers pictures, doors, networks and loudspeakers. HTECH distributes the hardware and helps pick models from the floor plan.

Catalogue groups

• Cameras: bullet, dome, outdoor, lenses, recorder disks, PoE switches
• Access: readers, door controllers, locks, exit buttons, cards
• LAN: switches, patch panels, racks, wireless access points when specified
• Public address: loudspeakers, amplifiers, microphones (TOA, Bosch, Bose, CAF, ITC)

Camera and door lines we see often: Hikvision, Dahua, MileSight, Axis, Novus; Idtek, Soyal, Invixium. LAN: HP, Cisco, TP-Link, Netgear. If the owner named a brand, we buy that brand — or we quote an equivalent with the data sheet.

Three lines that are often missing

• Recorder disks sized short — the array fills in two weeks
• A PoE switch that cannot feed every camera at once
• An emergency-exit door with no standby power

Send camera count, door count and network outlets. We build an equipment list. We do not quote a single “ELV package” before the quantities are known.

ELV into the BMS

If a DDC cabinet already exists, a dry contact or a module can show plant-room doors and rack power loss on the engineering software. That line sits on its own on the quotation. It is not inside a camera carton.

Related: ELV materials in a cost plan · Sizing PoE for cameras · BMS equipment.