Monthly Archives:October 2026

IP or AHD? Choosing CCTV cameras for a small site

08 Oct 26
tauseef@arnsec.com
No Comments

For a shop, office or home, the choice usually comes down to AHD or IP cameras. Both can give you a clear picture. They differ in cabling, flexibility and cost.

AHD cameras

AHD cameras send high definition video over coaxial cable to a DVR. They are simple, usually less expensive, and a good fit when you already have coax cable in place and want to upgrade the picture quality without re-cabling.

IP cameras

IP cameras connect to the network, usually over a single Cat6 cable that also provides power. They offer higher resolutions, smarter features and easier expansion, and they can be recorded to an NVR or to storage on your network.

How to choose

If you are starting fresh or expect to add cameras later, IP is normally the better long-term choice. If the budget is tight, the building already has coax, and four to eight cameras will do, AHD is perfectly reasonable.

Do not forget storage

Camera count, resolution and the number of days you want to keep footage decide the hard disk size. Ask your installer to show the calculation instead of quoting a disk size by guesswork.

IP or AHD? Choosing CCTV cameras for a small site

08 Oct 26
No Comments

For a shop, office or home, the choice usually comes down to AHD or IP cameras. Both can give you a clear picture. They differ in cabling, flexibility and cost.

AHD cameras

AHD cameras send high definition video over coaxial cable to a DVR. They are simple, usually less expensive, and a good fit when you already have coax cable in place and want to upgrade the picture quality without re-cabling.

IP cameras

IP cameras connect to the network, usually over a single Cat6 cable that also provides power. They offer higher resolutions, smarter features and easier expansion, and they can be recorded to an NVR or to storage on your network.

How to choose

If you are starting fresh or expect to add cameras later, IP is normally the better long-term choice. If the budget is tight, the building already has coax, and four to eight cameras will do, AHD is perfectly reasonable.

Do not forget storage

Camera count, resolution and the number of days you want to keep footage decide the hard disk size. Ask your installer to show the calculation instead of quoting a disk size by guesswork.

How to plan an office network before you buy anything

08 Oct 26
tauseef@arnsec.com
No Comments

Most network problems are planning problems. Switches get bought before anyone has counted the desks, and Wi-Fi gets added after the walls are painted. A single hour with a floor plan saves weeks later.

Count your devices, then add half again

List every computer, printer, phone, camera, access point and screen that needs a connection today. Then add at least fifty percent for the next three to five years. That number decides how many switch ports and cable runs you need.

Run more cable than you need now. Pulling extra cable while the ceiling is open costs very little. Opening it again costs a lot.

Decide what must never go down

Write down the two or three things your business cannot work without: billing software, a shared drive, the internet link. Those get the best equipment, a backup connection if you can afford one, and a spare switch on the shelf.

Plan Wi-Fi from the floor plan

Wi-Fi coverage depends on walls, floors and where people actually sit. Mark the rooms where calls and video are common and place access points to serve them, instead of one strong router in a corner.

Keep guests and cameras off the main network

Guest Wi-Fi and CCTV should live on their own network segments. If a visitor phone or an old camera is compromised, it should not be able to reach your accounts folder.

Ask for documentation

Insist on a labelled rack, a cable schedule and a list of passwords handed to you. Good documentation is the cheapest insurance you will buy.

How to plan an office network before you buy anything

08 Oct 26
No Comments

Most network problems are planning problems. Switches get bought before anyone has counted the desks, and Wi-Fi gets added after the walls are painted. A single hour with a floor plan saves weeks later.

Count your devices, then add half again

List every computer, printer, phone, camera, access point and screen that needs a connection today. Then add at least fifty percent for the next three to five years. That number decides how many switch ports and cable runs you need.

Run more cable than you need now. Pulling extra cable while the ceiling is open costs very little. Opening it again costs a lot.

Decide what must never go down

Write down the two or three things your business cannot work without: billing software, a shared drive, the internet link. Those get the best equipment, a backup connection if you can afford one, and a spare switch on the shelf.

Plan Wi-Fi from the floor plan

Wi-Fi coverage depends on walls, floors and where people actually sit. Mark the rooms where calls and video are common and place access points to serve them, instead of one strong router in a corner.

Keep guests and cameras off the main network

Guest Wi-Fi and CCTV should live on their own network segments. If a visitor phone or an old camera is compromised, it should not be able to reach your accounts folder.

Ask for documentation

Insist on a labelled rack, a cable schedule and a list of passwords handed to you. Good documentation is the cheapest insurance you will buy.

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