B2B Video Intercom
Video Intercom Systems for Residential and Multi-Unit Access Control
Choose video intercom solutions for villas, apartments and multi-unit buildings. Trudian offers door stations, indoor monitors and project-oriented system configurations for distributors, installers and access control integrators. For retrofit projects, review wiring conditions, device count, remote access requirements and supported integration options before selecting a system.
Model selection
Choose the deployment role; use the technical record to check the model.
Start with the entrance and connection method. Review villa video intercom, apartment and MDU intercom, retrofit intercom projects and new-build access control projects before finalizing the selected configuration.
SHARED ENTRANCE
TD-D801 SIP Call Panel
Aluminium-and-tempered-glass SIP entrance panel for MDU and commercial entry. 2MP, 13.56MHz RFID, face recognition, IP65 and −40°C to +70°C operation. Supports up to 9,999 apartments. Best fit: apartment entrance and commercial lobby. Key review: SIP topology · credentials · lock release.
CEFCCRoHSISO 9001
Technical recordOpen TD-D801 technical page
Open technical record
Camera2MP · 1080P · 110°
ProtocolSIP 2.0 · H.264/H.265 · ONVIF
Credentials13.56MHz RFID · face · PIN
HousingAluminium alloy + tempered glass
EnvironmentIP65 · −40°C to +70°C
PowerPoE 802.3af / DC 12V
ScaleUp to 9,999 apartments
DocumentsCE · FCC · RoHS · ISO 9001
INDOOR UNIT
TD-R50 IP Indoor Monitor 10.1"
10.1-inch IP indoor monitor with a 1024×600 IPS touchscreen, SIP communication, eight alarm inputs and an RS485 lift-control interface. Best fit: apartment and multi-unit communication. Key review: SIP path · alarm inputs · lift interface.
CEFCCRoHSISO 9001
Technical recordOpen TD-R50 record
Open technical record
Display10.1" IPS · 1024 × 600
ProtocolSIP · H.264 · TCP/IP
Alarm inputs8 × sensor inputs
Lift controlRS485 / dry contact
Mobile accessiOS + Android remote answer
StorageSD card up to 512 GB
PowerDC 12V
DocumentsCE · FCC · RoHS · ISO 9001
PRIVATE ENTRY / RETROFIT
TD-D4R85M 2-Wire IP Video Intercom Kit
2-wire IP kit with a 10.1-inch IPS indoor monitor and 2MP outdoor station. The published configuration lists a 110° view, IR-CUT, six 850 nm IR LEDs, 1,000 RFID cards, 2.4 GHz Wi-Fi, Tuya and two-way audio. Optional PoE interface; confirm the proposed wiring, device count and interface scope before quotation.
CEFCCRoHSISO 9001
Technical recordOpen TD-D4R85M record
Open technical record
Indoor monitor10.1" IPS touchscreen
Outdoor camera2MP · 110° · IR-CUT
Connection2-wire IP · 2.4 GHz Wi-Fi
Night vision6 × 850 nm IR LEDs
CredentialsUp to 1,000 RFID cards
EnvironmentIP65 outdoor panel
PowerOptional PoE interface
DocumentsConfirm by model and market
PRIVATE ENTRY / RETROFIT
TD-D4BR85M 2-Wire IP Video Intercom Kit
2-wire IP video intercom kit for residential entry and retrofit projects. Confirm its supplied monitor, outdoor station, device count, wiring route and required app or integration function against the selected configuration. Optional PoE interface.
CEFCCRoHSISO 9001
Technical recordOpen TD-D4BR85M record
Open technical record
System2-wire IP video intercom kit
Outdoor cameraConfirm camera specification by model
Connection2-wire IP; wireless function by configuration
EnvironmentConfirm outdoor rating by model
PowerOptional PoE interface
App and integrationConfirm by model, firmware and project scope
DocumentsConfirm by model and market
Technical review
Confirm interfaces and documents before quotation.
Check each requirement against the named model, configuration and destination market. A system label alone does not confirm a connection. A lower purchase price still leaves wiring, commissioning and support work to be managed.
SIP / VoIP
Confirm call routing, PBX connection and the required SIP implementation for the proposed model. See the SIP technical page for the review scope.
ONVIF / VMS
Confirm video-stream and VMS / NVR requirements against the selected hardware. The ONVIF connection guide lists the evidence to request.
Access interface
Confirm lock-release wiring, credentials and the access-control handoff at the entrance.
Market documents and cost drivers
Confirm documents against the destination, radio configuration and final supply scope. Review wiring and power requirements, network topology, commissioning effort, documentation and technical-support ownership for the selected configuration. Review installed cost factors.
Selection matrix
Compare deployment fit before opening the full specification.
Use the entrance type and connection path to reduce the shortlist, then validate the selected model in its technical record.
| SELECTION CRITERIA | TD-D801 SIP CALL PANEL | TD-R50 MONITOR | TD-D4R85M | TD-D4BR85M |
|---|---|---|---|---|
| Primary deployment | Shared entrance | Indoor unit | Residential entry / retrofit | Residential entry / retrofit |
| Connection path | SIP / PoE or DC | SIP / TCP-IP | 2-wire IP; optional PoE interface | 2-wire IP; optional PoE interface |
| Key decision | Credentials + lock release | Alarm inputs + lift interface | Wiring and device count | Wiring and device count |
| Intended deployment | MDU / commercial | Apartment units | Houses / villas / retrofit | Houses / villas / retrofit |
| Documentation review | By model & market | By model & market | By model & market | By model & market |
Connection review
Put connection requirements in the project brief.
List the required connection path, connected equipment and connection point in the brief. Confirm the route against the proposed model and configuration.
SIP / VoIP
Assess call routing, PBX connection and the communications topology.
VMS / CCTV
Assess NVR or VMS requirements after reviewing the proposed model and video connection.
Access control
Define lock release, credential and controller-interface requirements at the door.
Building systems
Record property-management, lift-control or building-system requirements in the project brief.
Mobile access
Confirm remote-answering and unlock requirements against the selected configuration.
Technical documents
Request connection, product and destination-market documents before the purchase decision.
Project questions
Resolve these points before approving supply.
Use these answers to prepare the brief. The selected model and site facts set the final scope.
How should I choose between SIP, indoor-monitor and Wi-Fi doorbell models?
Start with the entrance type and available network. Shared entrances normally require a call panel and defined call path; a private retrofit can use a Wi-Fi kit. Confirm users, credentials, lock hardware and existing site conditions before selecting the route.
Can a video intercom work without Internet access?
Local calling and door release may continue when the selected devices remain powered and registered on the same local network. Remote app answering, push notifications and cloud services require Internet access. Confirm the model, topology, lock controller and failure behaviour before quotation. Review the offline-operation guidance →
How many apartments can one multi-tenant intercom support?
Capacity must be stated for the exact door station, indoor station, extender, platform and firmware. Confirm apartment count, concurrent calls, directory size, network and power limits; do not use a headline unit number as a project capacity calculation. Review the sizing guidance →
Can a video intercom work with an existing electric lock?
Compatibility depends on the lock type, power supply, relay or controller interface and the required fail-safe behaviour. Confirm NO/NC wiring, voltage, door sensor, exit button and fire-release requirements against the selected model before ordering. Review the access-interface guidance →
Can a door station control two locks?
A second lock is possible only when the selected door station or controller provides the required output and the wiring, power and permissions are defined. Confirm whether the two locks are independent, how each is labelled, and how local, mobile and emergency release behave. Request a two-lock wiring review →
Can an indoor monitor and mobile app both unlock the door?
Both endpoints can unlock only when the selected indoor monitor, mobile service and lock path support that workflow. Confirm account binding, permissions, simultaneous ringing, audit logs and what remains available during an Internet or cloud outage. Review the mobile and indoor-monitor workflow →
Does SIP or ONVIF guarantee compatibility with any PBX, NVR or VMS?
No. SIP registration and ONVIF video discovery do not guarantee the same features on every PBX, NVR or VMS. Verify the exact model, firmware, codecs, events, audio direction and door-release path, then run a test with the named platform. Review the SIP/ONVIF checklist →
What should I check when the intercom has no video, no audio or no door release?
Check power, network or bus wiring, device registration, room numbers, stream and audio settings, lock power, NO/NC selection, door sensor and permissions in that order. Separate communication faults from lock-control faults, record the model and firmware, and escalate with logs when the basic checks do not restore service. Open the troubleshooting checklist →
How are documents reviewed for a destination market?
Review documentation at model and configuration level. Requirements can differ by destination, radio configuration and supply scope, so confirm the proposed model and market before quotation.
What is needed for a quotation review?
Provide the property type, number of entrances, entry hardware, target market, preferred connection path, required delivery date and any branding or documentation request.
Can the supplied hardware carry our brand?
Branding and packaging depend on the model and order volume. Review their documentation impact together with model selection.
What does the technical review cover?
The review can cover configuration guidance, interface requirements, model documents and a quotation-ready supply scope. Specify acceptance checks and post-purchase support in the project quotation.
Need a model recommendation?
Send the entrance type, number of doors, target market and delivery date. These facts are enough to prepare a provisional shortlist and quotation scope.
- Entry conditionDoors, lock type & entry path
- Target marketDestination documentation
- Delivery windowRequired delivery date