Access Control
Our specialists have delivered access control solutions across high-level, technically challenging sites. Whether single-site or multi-site, we tailor a solution to suit your business.
Teracom Solutions free tools
Access Control Door Planner
Count the readers, locks, exit buttons, controllers and cards an access control job needs, and the current they draw.
Access Control Door Planner
Count the readers, locks, exit buttons, controllers and cards an access control job needs, and the current they draw.
Usually 1, 2 or 4; check the controller datasheet.
Electric strikes are often 0.2-0.5 A; magnetic locks 0.25-0.5 A at 12 V.
Results
Readers: 8
Locks: 8
Exit buttons: 8
Door position contacts: 8
Controllers: 4
Cards or fobs: 72
Total current: 6.16 A
Size the power supply with the Access Control Power Supply Calculator and the backup battery with the Battery Standby Calculator. Fire doors and exit paths have to meet the building code: locks must release on a fire alarm and in a power failure where required.
How it works
Every door gets a lock and a door position contact, and a reader on the way in. Leaving is either a free exit button or a second reader. Controllers are the doors divided by the doors each controller handles, rounded up. Cards are the people plus your spare allowance. Current is each lock, reader and controller x its draw, added up.
Need help designing a system? Talk to our team, or see all 39 free calculators.
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Power Supplies
Reliable power supplies for security systems, including lithium battery UPS options for access control, CCTV and alarm applications.
Can't see what you need? Tell us the spec and we will source it.