Apartment Intercom System
An apartment intercom is sized by three numbers: units, entrances and the cable in the riser. Under 10 units can use a kit; 10–50 units need a multi-apartment topology; larger or multi-building sites usually need IP. Count monitors, guard stations and power before asking for a price.
- 10–300+ units
- 2-wire / 4-wire / IP
- 7–10 inch monitors
- Guard station option
How do you size an apartment intercom system?
Start with the unit count, the number of entrances and the existing riser cable. A small villa or building can use a kit; a multi-apartment building needs a system that supports the monitor count and call routing. For more than 50 units or multiple buildings, IP is usually easier to expand and manage.
- Count units, entrances and monitors first
- Record the riser cable type and condition
- Decide whether a guard station is needed
- Confirm app and access-control integration early
Which apartment intercom topology fits this building?
The first table is a starting point by unit count. The second compares the models used on this page. The third lists the checks that decide whether the design will work in the building.
Apartment intercom selection by unit count
| Building size | Typical topology | Design note |
|---|---|---|
| Up to 10 units | 2-wire, 4-wire or IP kit | One entrance, one monitor per unit; confirm the kit maximum |
| 11–50 units | 2-wire, 4-wire or IP multi-apartment | Check the riser cable and monitor count; a 4-wire kit may stop at 4 indoor units |
| 51–150 units | IP backbone with PoE | Network switches, VLAN and monitor addressing become part of the design |
| 151–300 units | IP multi-building | Use building-level network and a central management platform |
| Multi-building or guard station | IP with guard monitor or software | Call routing, emergency calls and records need a management plan |
Models used in apartment projects
| Model | Type | Key specification | Power / wiring | Best for |
|---|---|---|---|---|
| TUYA TY76A-HM5-1B | 4-wire multi-apartment kit | Keypad, card; 2 MP camera; 7-inch monitor; max 4 indoor units | Indoor AC supply; RVV4 up to 150 m | Small multi-unit entrance |
| TUYA TY75T-HTD2 | 2-wire video intercom kit | 7-inch IPS; RVV2 up to 150 m | Indoor AC supply; two-core cable | Small building retrofit |
| MC-516R15IPD2-7 | IP door station | 7-inch; face, card, app; elevator control | DC 12 V; network | Main apartment entrance |
| MC-526R15U-10 | 10-inch indoor monitor | 10-inch; Wi-Fi; ZigBee/KNX options | DC 12 V | Apartment monitor |
Design checks before the quotation
| Design item | Typical setting | Why it matters |
|---|---|---|
| Unit count | 10 / 50 / 150 / 300+ | Sets the topology and monitor count |
| Entrance count | Main, side, garage and unit doors | Each entrance needs a door station and call address |
| Riser cable | 2-wire, 4-wire or network; record the condition | Reusing cable is the main retrofit cost saving |
| Monitor per unit | One or more; confirm the kit maximum | Extra monitors change power and call routing |
| Door station | 7–10 inch; face, card or keypad | Visitor experience and access control depend on it |
| Guard station | Optional monitor or software | Visitor and emergency calls need a destination |
| Call routing | Unit, guard, manager or app | Defines the management workflow |
| Unlock | Monitor, card, app or code | Must match the door lock and resident habits |
| Power | Door station and each monitor | Voltage drop is the main multi-unit fault |
| App / cloud | Gateway and subscription if required | Remote answering is not available on every kit |
| Access control | Card, face or QR at the entrance | Shared credentials need a permission model |
| Elevator | Compatible lift controller interface | Lift call must follow the same access rules |
| Fire | Release input for egress doors | Do not trap residents during an alarm |
| Commissioning | Unit-by-unit call, video, audio and unlock | Catches addressing and wiring faults |
| Documentation | Unit list, monitor list, cabling and passwords | Handover and maintenance depend on it |
Door stations, kits and monitors for apartment projects
Open a model page for the full specification. Confirm the maximum monitor count and call routing before comparing prices.
What can this system do, and what still needs confirmation?
The building decides the design: cable, unit count and management model. Confirm all three before selecting a kit.
What it can do
- Use a 2-wire kit where two-core cable exists
- Use IP for larger or multi-building sites
- Add a guard station or management software
- Support app answering on gateway-enabled kits
- Integrate card, face or QR access at the entrance
What it cannot do / needs confirmation
- Exceed the kit maximum monitor count
- Guarantee reuse of an unknown riser cable
- Provide building network, power points or civil works
- Guarantee lift call without the lift controller interface
- Replace the building management or fire system
Send the unit list, entrance count, riser cable photos, monitor locations and guard-station requirement. We will return a topology and a monitor count.
Apartment intercom questions buyers ask before quoting.
The answers follow the unit-count and riser-cable logic used on this page.
How many indoor monitors can one apartment intercom support?
Can each apartment have its own door station?
Is 2-wire enough for a 100-unit building?
Do we need a guard station?
Can residents open the door from a phone?
What should be measured before quoting?
Still have a question? Contact
Send the unit list. We will return a topology and monitor count.
Include the building size, entrances, riser cable, monitor locations and whether a guard station or app is required. Photos of the door and riser help confirm the retrofit path.
- Door list / unit list
- Existing cable, cards and controller
- Site photos and timeline
Project inquiry
Share the site type, number of doors or apartments, and the functions you need. We will reply with a recommended configuration and a quotation.
Continue with the apartment path
Video intercom systems
IP, 2-wire, 4-wire and AHD overview.
OpenBuilding intercom systems
Villa, apartment and nurse-call layouts.
OpenVideo intercom products
Kits, door stations and monitors.
OpenResidential community solutions
Entrances, parking, property management and records.
OpenVilla intercom solutions
Single-gate and multi-storey villa layouts.
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