Door Entry Systems in Rwanda

What is a door entry system, and who needs it

It’s an intercom, nearly always with video today, connecting an outdoor or entrance call station to one or more answering points: a reception station, a guard post, a desk phone or a mobile app. The answering person can release the door or gate remotely. It suits offices with a single reception, compounds with a vehicle and pedestrian gate, residential and hotel entrances, clinics, schools and warehouses that receive deliveries.

The problem it solves

An entrance staffed by whoever happens to be nearby means visitor screening is inconsistent, and after hours there may be none at all. Staff leave their desks to open a gate, a door gets propped open to save the walk, and nobody knows who was let in. A door entry system lets the right person check every caller from where they’re working, and admit them without leaving the post.

Where it fits with cameras and access control

Door entry, access control and CCTV each cover part of the same entrance:

• Access control lets staff in with their own credential and logs each entry.
• Door entry lets a person inside decide whether to admit a visitor.
• CCTV records who came and went, and what happened at the door.

Designed together, a single door can have one lock that opens for a staff card or for a release from reception, a call station whose camera snapshot is stored with each call, and a CCTV camera at identification level recording the doorway. Designed separately, the same door often ends up with three sets of cabling and logs that don’t line up.

Choosing a system

Two-wire systems reuse existing intercom cabling and suit simple upgrades in a single building.

IP systems run over network cabling, scale to many stations, divert calls to phones and integrate with access control and CCTV. They are the usual choice for new installations and gates where a network link is available, and they need the same care with segmentation and passwords as an IP camera.

Gate stations need weatherproof and vandal-resistant housings, a camera that copes with headlights at night, and controls for each gate.

What the work involves

1. Survey entrances: which doors and gates, lock or gate motor type, cable routes and power.
2. Agree the answering plan: who answers, where, and what happens after hours.
3. Install call stations, answering stations and door or gate release wiring.
4. Configure call routing, diverts, mobile apps and snapshot recording.
5. Test every station and release, including at night, then train reception and guards.

What’s included and what’s not

Typical timelines and what drives cost

A single entrance typically takes half a day to a day. Cost is driven by the number of entrances and answering points, video versus audio, cable distance to gates, whether the system is two-wire or IP, mobile call forwarding, and whether gate motors or locks need adding or replacing.

Equipment typically used

Video call stations with night vision, weatherproof and vandal-resistant ratings for outdoor and gate positions, indoor answering monitors, IP intercom servers or apps for call forwarding, electric strikes or gate motor interfaces, and power supplies with battery backup so the entrance keeps working in a power cut.

Common mistakes we see

Audio-only stations at gates, where seeing the caller matters most. One answering station at a desk that is often empty. Gate stations mounted where headlights blind the camera at night. Release buttons that leave a gate open indefinitely. IP intercoms installed with default passwords on the office network. And no record of who was admitted, so an incident can’t be traced back to a call.