DVR/NVR Connections & Rack
Purpose
This document covers how to correctly connect up a Hikvision DVR or NVR at the head-end — cameras, hard drive, monitor, network, and power. A well-organised head-end is easier to fault-find, easier for other engineers to pick up, and creates a professional impression.
Head-End Location
Choose the DVR/NVR location carefully at survey. Requirements:
- Power — a 230V socket nearby or a spur that can be installed
- Network — the customer's router must be reachable by cable for remote access (Hik-Connect)
- Ventilation — DVRs generate heat; do not install in a sealed enclosure without airflow; hard drives fail early if run hot
- Security — a DVR stolen during a burglary takes the only evidence with it; consider a locked cabinet, high mounting, or alarm coverage of the area
- Cable routing — all camera cables must reach this point; it is the hub
Common locations: Loft, airing cupboard, utility room, office. Avoid garages on external walls (temperature extremes) and anywhere damp.
Rear Panel Connections
DVR
| Connection | Purpose |
|---|---|
| Video inputs (BNC) | Camera coax connections — one per channel |
| HDMI output | Main monitor — always use HDMI |
| VGA output | Secondary monitor |
| USB ports | Mouse, USB backup, firmware updates |
| Network (RJ45) | Ethernet to router — required for remote access |
| Power input | 12V DC from supplied adaptor |
| RS-485 | PTZ camera control — not commonly used on residential installs |
| Alarm inputs | Zone triggers — not commonly used on CCTV-only installs |
NVR
| Connection | Purpose |
|---|---|
| PoE ports (RJ45) | Direct IP camera connections — built-in PoE switch |
| LAN port (RJ45) | Connection to router / customer network |
| HDMI output | Main monitor |
| VGA output | Secondary monitor |
| USB ports | Mouse, USB backup, firmware updates |
| Power input | 12V DC from supplied adaptor |
Hard Drive Installation
DVRs and NVRs ship without a hard drive. Fit it before powering on.
- Power off the unit completely
- Remove the lid (typically 4 screws on sides or rear)
- Locate the HDD bay — most units have a tray or direct mounting points
- Connect the SATA data cable from the drive to the motherboard socket
- Connect the SATA power connector from the internal harness to the drive
- Secure the drive with the mounting screws — do not leave it loose; vibration will cause early failure
- Replace the lid
- Power on — the DVR detects the new drive and prompts to format
- Format through the menu — this initialises the drive for recording
Use WD Purple or Seagate SkyHawk only. Consumer HDDs will fail prematurely under 24/7 write loads.
Connecting the Cameras
Analogue DVR
- Terminate each coax cable with a BNC at the DVR end
- Label each cable with the camera position before connecting
- Press and twist each BNC into the channel input on the DVR rear
- On POC DVRs: no additional power connections needed — power goes through the coax automatically once the channel is active
NVR with Built-in PoE Ports
- Terminate each Cat5/6 with an RJ45 (T568B)
- Label each cable with the camera position
- Plug into the corresponding PoE port — the NVR powers and discovers the camera automatically
NVR with External PoE Switch
- Camera cables terminate at the PoE switch
- A single Cat5/6 network cable connects the switch uplink port to the NVR LAN port
- Cameras are added to the NVR manually by IP address, or auto-discovered if on the same subnet
Network Connection
Connect the DVR/NVR to the customer's router via Cat5/6 (RJ45).
- Use a factory patch lead where possible
- The router must have DHCP enabled (standard on all home routers) — the DVR obtains an IP address automatically
- For remote access via Hik-Connect, no port forwarding is required — Hik-Connect uses outbound cloud connectivity
Optionally, assign the DVR a static IP address to prevent it changing if the router reboots or resets. Set this in the DVR network settings after initial setup.
Monitor Connection
Connect a monitor via HDMI for initial setup and customer handover.
- Any HDMI TV or monitor works fine for setup
- Hikvision DVR/NVR outputs 1080p HDMI as standard
- If a permanent monitor is being left, route the HDMI neatly alongside the cabinet
- Many customers are satisfied with Hik-Connect for day-to-day use and need no permanent monitor
Mouse
All Hikvision DVRs and NVRs are operated via a USB mouse (supplied). Connect to any USB port on the front or rear panel. A monitor is required to use the GUI.
Cable Management at the Head-End
A well-organised head-end:
- All cables labelled at the point they enter the DVR cabinet
- Cables bundled and routed so individual cables can be traced and disconnected
- Service loops left inside — enough slack to disconnect and reconnect without stressing cables
- Power and network cables separated from camera cables where practical
- Nothing lying loose across the floor or dangling
A messy head-end means every future engineer (or you, returning later) has to spend 20 minutes working out what is what before starting. Take the extra time on the day.
Pre-Commission Checklist
Before powering the DVR/NVR for the first time:
- All camera cables connected and labelled at the DVR
- HDD installed, SATA data and power cables connected
- Network cable connected to router
- Mouse connected
- Monitor connected via HDMI
- 12V DC power adaptor connected
- Ventilation confirmed — DVR vents clear
