Solutions

Access control: the right people, through the right doors, with proof

An access control system is a policy engine bolted to your doors: who, where and when, enforced automatically and logged permanently. Chasing Sun designs and installs it from a single server room door to whole campuses, on Suprema biometric and card platforms, integrated with the rest of your security stack.

Core capabilities

Policy, enforced at the door

Zoned permissions

Rules per person, per door and per schedule. The cleaner's badge and the CFO's badge open different worlds.

Credential options

Biometric and card credentials, matched to each door's risk tier.

Instant revocation

A departed employee loses every door in one click, with no chase to recover keys.

Audit trail

Every event logged permanently and exportable for investigations and compliance.

How it works

The chain behind every controlled door

Five components decide whether a door opens, stays shut and gets remembered. We design, wire and commission the whole chain, because a weak link anywhere is a weak door.

CredentialWhat the person presents: fingerprint, face or card, chosen per door by risk tier rather than one size for the whole building.
ReaderMounted at the door, weather rated where exposed. It captures the credential and passes it on. By design, it decides nothing.
ControllerThe policy engine on the secure side of the wall. It holds the rules and keeps deciding open or deny even when the network is down.
Lock & door hardwareMagnetic or strike locks, exit devices and door position sensing, with fail safe or fail secure behavior chosen per door and per fire escape route.
Event logEvery decision recorded centrally and permanently: exportable for investigations, audits and HR.

Credential mix by door, not by building

A typical design tiers the doors. Here is the shape most sites converge on.

DoorTypical credentialOn power lossWorth adding
Perimeter gateCard or fingerprintStays locked, on backup powerVideo verification of every event
Main entranceFace or card, tuned for throughputChosen with fire safety firstA visitor workflow
Office zonesCard, biometric where sensitiveFail safe on escape routesSchedules per team
Server roomBiometric plus card or PINFail secure, on backup powerA camera on the door, tied to the log

Video verified access

Disputes end with a picture

Pair door events with TRASSIR cameras and every access event carries a face: the question is no longer whose badge it was, but who stood at the reader.

TRASSIR VMS integrations

Design considerations

The details that decide whether it works in year three

Doors & readers

Reader choice per door: risk tier, weather exposure, traffic volume and fallback strategy.

Power & continuity

Backup power design so a power cut never leaves a door standing open, with fail safe or fail secure behavior chosen per door.

Software & integration

Permissions managed centrally, events flowing to HR, video and audit systems.

How we deliver

From door schedule to handover

01 · Site survey

We walk every door and gate, note construction, traffic and escape routes, and build the door schedule with you.

02 · Design & quotation

Credential mix, controller layout, wiring plan and a bill of materials you can audit, usually within 48 hours.

03 · Installation & commissioning

Locks, readers and controllers installed and every door tested against its policy, including power failure behavior.

04 · Training & support

Your administrators learn to manage permissions themselves, with local engineering behind them from Nairobi.

Hardware comes through authorized distribution with manufacturer warranty. After handover you keep one accountable partner: the team that designed the system answers for it, 24/7 by phone or WhatsApp.

Questions we hear

Access control, answered plainly

Can you extend a system we already have?

Often, yes. The site survey starts with what is already installed, and where doors, wiring or readers can be reused, we design around them.

What happens in a power cut?

Each door is designed for it: backup power where the door must keep working, and fail safe or fail secure chosen per door, so a blackout never leaves the wrong door open or an escape route shut.

Can one system cover several branches?

Yes. From a single server room door to whole campuses and multiple sites, with permissions managed centrally and events rolling up to one log.

How fast can we remove a departed employee?

In one action. Revocation removes every door at once, with no chase to recover keys or cards.

Do door events tie back to video?

They can and should. Paired with TRASSIR cameras, every access event carries a picture of who stood at the reader. That is how badge disputes end.

What warranty and support come with it?

Genuine equipment through authorized distribution with manufacturer warranty, plus local engineering support from Nairobi, reachable 24/7 by phone or on WhatsApp.

Request a door schedule survey and quotation

List your doors and who should pass through each. We'll design the credential mix, wiring and policy engine that enforces it.