Access control tailored to your flow of people.
S4 designs and integrates access control for people and vehicles: card, biometrics, PIN or mobile credential; profiles and schedules; visitor pre-registration and time and attendance, integrated with video surveillance, alarms and fire systems.
Request an assessmentContent reviewed in November 2026
- C1Identification
- C2Door
- C3Control
- C4Management
Who it is for
4 layers, from identification to management. Choose a profile to see which part of the system concerns you.
Head of security
Real control over who enters each zone and traceability after an incident.
IT director
Users synchronized with the directory and a system that can be administered on the corporate network.
Human resources
Reliable attendance records, with no manual consolidation.
Know who entered, where and when.
In many organizations access depends on a logbook at reception, uncontrolled keys, or cards that stay active after the person has left. When something happens, there is no reliable record.
You need it if you recognize any of these signs:
- Cards or keys of people who no longer work there still function.
- Visitors are logged by hand and queue at reception.
- Vehicle and pedestrian access run on different systems.
- Attendance reports are put together by hand at month-end.
- During an evacuation, nobody knows who was inside.
How the system is built.
We prefer OSDP readers, which encrypt and supervise communication with the controller, over traditional Wiegand. The platform integrates with video surveillance (each event with its image), with fire systems (door release on alarm) and, via API or export, with the user directory or payroll.
Identification
- Card, PIN, biometrics or mobile credential
- License plate recognition at vehicle entrances
- Temporary credentials for visitors
Door
- Electromagnetic locks and electric strikes
- Door sensors and exit buttons
- Turnstiles, courtesy gates and barriers
Control
- Networked controllers with backup power
- Communication with readers via OSDP or Wiegand
- Access management software
Management
- Visitor pre-registration
- Time and attendance
- Reports, audit and link with HR
What is included and what is not.
Included in the service
- Analysis of people and vehicle flows at each entrance
- Identification technology justified by risk and by flow
- Definition of profiles, zones and schedules
- Supply, installation and configuration of readers, locks, turnstiles and barriers
- Visitor pre-registration and time and attendance
- Integration with video surveillance, fire systems and other systems
Out of scope
- Carpentry or door modifications beyond what the hardware requires
- Reception or security staff
- Payroll processing: the system delivers the records, it does not calculate salaries
Anything out of scope is coordinated with the right party or quoted separately, and is always stated in writing before we start.
How we do it, step by step.
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Assessment
Observation of entries and exits at peak and off-peak times; review of doors, hardware and existing systems.
DeliverableInventory of access points and risks per zone
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Design
Identification technology, lanes, profiles and schedules, integrations and verification of evacuation routes.
DeliverableTechnical report, floor plans and profile matrix
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Integration
Installation of readers, locks and turnstiles, loading of users and rules.
DeliverableSystem installed with users loaded
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Commissioning
Testing of each door, each profile and the release on fire alarm; training of reception and administrators.
DeliverablePer-door test report and administration manual
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Operation and improvement
Additions and removals, maintenance of readers and locks, periodic review of profiles.
DeliverableEvent and status reports
Reference regulations and standards.
These are the usual references for this type of system. The technical report of each project identifies which ones apply, depending on the use, size and location of the installation.
Regulatory reference, indicative
- Law 1581 of 2012 and Decree 1377 of 2013 (Colombian data protection)
- Fingerprint and face are sensitive data: they require prior, express and informed authorization and reinforced safeguards.
- NSR-10, title K
- Colombian building code, means of egress: access control can never block exit along an evacuation route; this is verified in the design.
- OSDP
- Security Industry Association (SIA) protocol for encrypted, supervised communication between readers and controllers.
- RETIE
- Colombian technical regulation for electrical installations: governs the service connections and circuits that power the equipment.
What stays in your hands.
Profile and schedule matrix
Who enters, where and when, in writing.
Access plans
Location of readers, locks and controllers.
Technical report
Chosen technology and its justification.
Per-door test report
Includes the release on fire alarm.
Manuals
Administration, reception and procedure for additions and removals.
How we apply it in your sector.
What people ask us most.
Which identification technology is best?
It depends on flow, risk and environment. Cards are quick and cheap to replace; biometrics prevent credential sharing; mobile credentials simplify management. The design compares them and justifies the option chosen.
Can I use fingerprint or facial recognition?
Yes, but they are sensitive data (Law 1581 of 2012): they require each person's express authorization, an alternative for anyone who declines, and reinforced protection measures.
What happens to the doors if the power goes out?
It is decided door by door: evacuation doors are released; doors to critical zones can stay locked if there is another exit. Controllers and locks have backup power.
How does visitor pre-registration work?
The host registers the visit in advance; the visitor receives a code or temporary credential and reception only validates it, with no queues or logbooks.
Can it be used to track attendance?
Yes. Records are exported to payroll or HR in the agreed format.
Does it integrate with other systems?
Yes. Integration with video surveillance, alarms, fire systems and parking is part of the design.
Let's talk about your project.
Request an assessmentOr call us: +57 314 460 0683 · +34 848 88 04 04