IP Telephony & SIP Communication Systems · Guangzhou, China
Scenarios · building entry
A door entry system answers one question at every entrance: who is there, and can they come in. The design documented here puts the entrance station, the indoor unit, the guard desk and the lift controller on one SIP network, without a proprietary server, and keeps the option of retrofitting a building that has nothing but two-core cable in the wall. It suits offices, apartment buildings and mixed-use properties. NEXVIA designs, manufactures, supplies and commissions the system; the entrance and indoor terminals are manufactured by NEXVIA.
A building entry system is sized on entrances first: a typical apartment building runs 1 main entrance, 1 to 3 secondary doors, 1 guard or concierge position where there is one, and one indoor unit per apartment. Each entrance is an independent SIP terminal, so each needs its own extension, its own cable route and a place in the guard or resident call group — a 100-unit building with 4 entrances is 4 extensions plus 100 indoor units on the same system.
What opens the door is published per model: the face-recognition range offers six methods (face, IC/ID card, PIN, QR code, DTMF and app), the compact outdoor models take IC card, PIN, BLE and DTMF, and every range carries SIP and ONVIF. Lift control is separate and explicit — the EC20 drives 64 outputs expandable to 128 over RS485 and Wiegand 26/34, calls the lift to the first floor ahead of arrival and restricts visitors to designated floors.
The building decides the wiring, not the other way round. Where no data cable exists, the PN1 converter carries network and power over an existing two-core cable and reaches up to 1600 m for the network function without power; a floor that needs many 2-wire points uses the PN8 (up to 8 devices) or PN24 (up to 24 devices), both rated to 300 m for network plus power. Prices are not published on this site — every building is quoted per entrance count, unit count and cable survey.
A building has a main gate, a garage entrance, a service door and sometimes a lift lobby. Each station is an independent SIP terminal, so each needs its own extension, its own cable route and a place in the guard or resident call group.
The retrofit case in the material is built around no new wiring: the PN1 2-wire converter carries network and power over an existing two-core cable, with up to 1600 m for the network function without power, and PN8 or PN24 switches carry 8 or 24 devices over the same technique at up to 300 m with power.
Residents and deliveries also meet the lift. The EC20 drives 64 outputs, expandable to 128, over RS485 and Wiegand 26/34, can call the lift to the first floor ahead of arrival and restricts visitors to designated floors.
Residents will not troubleshoot. Door phones accept face, card, PIN, QR code, DTMF and app entry, indoor stations take PoE and mount on the wall with one-touch family calling, and the face-recognition models use anti-spoofing liveness detection against images, videos and masks.
| Size band | System | Devices | Notes |
|---|---|---|---|
| Single entrance — villa, small office, clinic | OM20G — 24 SIP trunks; 4 analog ports if a gate line is kept | 1–2 entrance stations (A10W / A12V / i60K), 2–8 indoor units, 1–2 apartment or desk handsets | The OM20G is also the only model that can dial out through a 3G/4G USB modem, which matters at a remote gate with no wired line. |
| Apartment building up to about 100 units | OM50G — 62 SIP trunks; up to 12 analog ports across 3 interface cards | 4–8 entrance stations (i67 / A10W / A12V), 1 guard station (A308), up to 100 indoor units, 1 lift controller where smart lift access is required | A maximum number of indoor stations per system is not stated, so the unit count is confirmed on the quotation. Ring groups hold up to 40 extensions on this model. |
| Community of several buildings | OM200G — 496 SIP trunks; up to 96 analog ports | Per-building station counts, community broadcasting zones, one guard station or intercom panel per gate | 4 hot-swap slots, gigabit Ethernet and single or dual AC/DC power for a site that cannot go offline; PT2400 or PT4800 patch panels suit a communal equipment room. |
| Large estate or multi-phase development | OM1000-UC — 1000 SIP trunks, up to 200 concurrent calls per trunk | The per-building counts repeated across phases, one dial plan, DID numbers for shared entrance lines | SIP only, with dual hot standby (3 fixed IP addresses) and multi-site networking using unique or repeatable numbering; the residential material states the system needs no proprietary servers. |
| Retrofit over existing two-core cable | OM50G or OM200G — 62 or 496 SIP trunks | Entrance stations and indoor units at the existing points, with PN1 converters per point and PN8 or PN24 switches per riser | PN1 carries network and power over 2-wire with an external AC 100–240 V supply; PN8 and PN24 carry 8 and 24 two-wire devices with a maximum connection distance of 300 m for network plus power. |
| Model | Role | Access methods and camera | Protection and connection |
|---|---|---|---|
| i67 | Face-recognition entrance station | Face, IC/ID card, PIN, QR code, DTMF, app; two 2 MP wide-angle cameras with fill light; 7-inch touchscreen; 3W speaker with AEC | IP66 and IK07, −20 °C to 60 °C; SIP and ONVIF; Wiegand; anti-spoofing liveness detection |
| i68 | Face-recognition entrance station, larger screen | Same six methods; two 2 MP cameras; 8-inch screen | IP66 and IK07, −20 °C to 55 °C; SIP and ONVIF; Wiegand |
| i66 | Face-recognition entrance station, cold-rated | Two 2 MP cameras; numeric keypad with light effect | IP66 and IK07, −40 °C to 60 °C; SIP and ONVIF |
| i64 / i63 / i62 / i61 | Video entrance stations with card and code entry | Password, IC/ID card, indoor switch, DTMF, scheduled opening; one 2 MP camera with IR night vision; 2.5W speaker with AEC; TF card up to 128 GB | IP66 and IK07, −40 °C to 70 °C; SIP and ONVIF |
| i60 / i60K | Compact entrance station with rain cover | IC card, PIN (i60K), BLE unlocking, DTMF, app; one 2 MP camera with IR night vision; 1W speaker with AEC; 1 relay, 1 short-circuit in and 1 out | IP65 with rain cover; SIP and ONVIF; 12 V DC or PoE |
| A11 / A11V | Audio / video intercom for entrances and service doors | A11V: 4 MP camera with IR night vision; 5W speaker with AEC; 1 access-control relay; 2 short-circuit inputs and 1 output | IP66 and IK10, −40 °C to 70 °C; anti-tamper alarm to the control centre |
| A12 / A12V | Outdoor emergency intercom and gate station | A12V: 4 MP camera with IR night vision; 10W speaker with AEC; 1 access-control relay; 2 short-circuit inputs and 2 outputs | IP66 and IK10, −40 °C to 70 °C; ONVIF and RTSP on the video model; TF card |
| i16S / i16SV | Intercom and access position, indoor or sheltered | i16SV: HD camera with IR night vision, 1080p; 3W speaker with AEC; 2 inputs and 2 outputs; 2 relays | IP65 and IK10, −30 °C to 60 °C; anti-tamper alarm |
| A10W | Door-side panel in a standard box | Three function keys, 2W speaker with echo cancellation, 1 relay, 1 short-circuit in and 1 out; KT10/KT20/KT30 buttons | Standard 86 box; PoE or 12 V DC; IP54; −10 °C to 50 °C |
| i501 / i506W | Indoor unit in the apartment | i501: three DSS keys, one-touch unlock or call, 1W speaker with AEC. i506W: 10.1-inch 1280×800 screen, 2W speaker with AEC, 8 alarm inputs and 1 embedded relay | Wall mounted with PoE integrated; both publish built-in 2.4G/5G Wi-Fi |
| A308 / A320 | Guard or concierge station | A308: 7-inch 1024×600 screen, 5 MP adjustable camera, gigabit port, desktop or wall bracket. A320: 10.1-inch 1280×800, 8 MP camera with privacy cover | SIP; integrates IP cameras for monitoring and pushes notifications to the indoor unit or app |
| EC20 | IP elevator access controller | 64 outputs expandable to 128; RS485 and Wiegand 26/34; calls the lift ahead of arrival; restricts visitors to designated floors | 10/100 Mbps Ethernet; configured over web software; works with the door terminals |
| Requirement | Conventional door entry system | This IP design | What changes operationally |
|---|---|---|---|
| Wiring to the entrance | Multi-core cable from the panel to a handset in each apartment | One network run to the entrance station, and the indoor unit is a network terminal; where only two-core cable exists, PN1 carries network and power over it | Old cable can be reused rather than replaced; new buildings run data cable |
| Adding an entrance | A new panel, a new cable to every handset | A new SIP extension and a place in the call group | A second gate or goods door becomes an extension, not a system |
| Who answers | The apartment handset, and if nobody answers the visitor is stuck | Indoor unit, guard station or app; the call is a normal SIP call, so it can also go to a call group | A missed call is not a lost visitor |
| Identity check | Voice only | Video on the entrance station and on the indoor unit screen; face recognition and liveness detection on the i67/i68 range | Residents see who is at the door before releasing it |
| Lift and shared areas | A separate lift controller and a separate intercom | EC20 on the same system: 64 to 128 outputs over RS485 and Wiegand, rights decided per card or resident | Visitor access is restricted to designated floors from the same system |
| Records | None | Door logs, temporary keys and push notifications where the cloud platform is used; TF card image storage up to 128 GB on the door phones | Access can be reviewed after an incident |
| Alarms in the apartment | Not connected | 8 alarm inputs and 1 embedded relay on the indoor unit support an external fire or gas alarm | The intercom point doubles as an alarm input |
| Area | Device | Note |
|---|---|---|
| Main building entrance | i67 face-recognition door phone | 7-inch touchscreen in an all-aluminium IP66 and IK07 body, two 2 MP wide-angle cameras with automatic fill light, six access methods, SIP and ONVIF, a Wiegand interface and anti-spoofing liveness detection. |
| Second gate or vehicle entrance | A12V outdoor video intercom | IP66 and IK10 with a 4 MP camera and infrared night vision, a 10W speaker with echo cancellation, 2 short-circuit inputs and 2 outputs, −40 °C to 70 °C, and an anti-tamper alarm reported to the control centre. |
| Service door, goods entrance or in-suite door | A10W SIP mini intercom | Fits a standard 86 box with three function keys, a 2W speaker with echo cancellation, one relay and one short-circuit in/out; supports KT10/KT20/KT30 buttons and runs on PoE or 12 V DC. |
| Inside the apartment or office suite | i506W or i501 indoor station | i506W: 10.1-inch 1280×800 screen, 8 alarm inputs and 1 embedded relay, wall-mounted with PoE and 2.4G/5G Wi-Fi. i501: three DSS keys, one-touch unlocking or calling, a 1W speaker with echo cancellation and PoE support. |
| Concierge or guard room | A308 guard station (A320 for a larger desk) | A308: 7-inch Android touchscreen with a 5 MP adjustable camera, a gigabit port and a bracket for desk or wall. A320: 10.1-inch 1280×800 with an 8 MP camera and privacy cover. Both answer entrance calls, open doors and integrate IP cameras for monitoring. |
| Lift machine room or garage | EC20 elevator access controller | RS485 and Wiegand 26/34, 64 outputs expandable to 128, configured over web software; calls the lift ahead of arrival and restricts visitors to designated floors. |
| Riser or floor distribution (retrofit) | PN1 converter, PN8 or PN24 2-wire switch | PN1 carries network and power over an existing two-core cable (up to 1600 m for network without power). PN8 carries up to 8 devices and PN24 up to 24 devices, with a maximum connection distance of 300 m for network plus power. |
A visitor presses the call button or, on the face-recognition range, is recognised; the entrance station places a SIP call to the apartment indoor unit, the guard station or a call group; the person who answers sees and speaks to the visitor and releases the door remotely.
Yes, and that is the labelled retrofit case in the residential material. The PN1 2-wire converter carries network and power over an existing two-core cable, with up to 1600 m for the network function without power, supplied at AC 100–240 V.
As many as the PBX has capacity for, because each entrance station is one SIP terminal: 24 trunks on the OM20G, 62 on the OM50G, 216 on the OM80E, 496 on the OM200G and 1000 on the OM1000-UC. In practice the design limit is cabling and call groups, not extension count.
With the EC20 IP elevator access controller: 64 outputs expandable to 128, RS485 and Wiegand 26/34, configured over web software. It can call the lift to the first floor ahead of arrival and restrict visitors to designated floors.
Three published ways. The entrance station can carry a numeric keypad with a directory or a code per apartment; the face-recognition and card ranges let a regular visitor be recognised or carry a card; and the guard station or app lets a concierge or resident route the call.
The call follows the same rules as any other call on the PBX: it can ring a group rather than one device, and if it is not answered it can be routed on — to the guard station, to another family member's extension, or to voicemail where that extension has it.
No for the call itself: the system is SIP based and the residential material states it is compatible with standard IP PBX hardware and softswitches, with no proprietary servers needed, so the call runs over the building network. Anything that leaves the building — an app notification, a remote unlock or cloud device management — is a separate design decision.
Where the wiring can be reused, yes — the PN1 converter puts network and power onto an existing two-core cable, and the indoor units and entrance stations then replace the old handsets. The old panel itself is not reused: the entrance station is the SIP terminal in the new design.
Which range fits which entrance
| Site condition | Range | Why | Published limit to check |
|---|---|---|---|
| Sheltered lobby, high traffic, mixed residents and visitors | i67 / i68 | Face recognition with liveness detection plus card, PIN, QR, DTMF and app entry | IP66 and IK07; −20 °C to 60 °C (i67) and −20 °C to 55 °C (i68) |
| Cold climate or direct weather | i66, i64 to i61 | Published from −40 °C, IP66 and IK07 with IR night vision | Camera is 2 MP; speaker 2.5W to 3W |
| Compact gate or second door | i60 / i60K | Small body with rain cover, BLE and IC card entry | IP65; 1W speaker; 1 relay |
| Service door inside a safe area | A10W | Standard 86 box, relay for the strike, button support | IP54; PoE or 12 V DC |
| Gate with vehicles and weather | A12V | 10W speaker, 4 MP camera, IK10 die-cast body, anti-tamper alarm | IP66; 2 SIP lines; PoE not stated — power confirmed on the quotation |
Match the range to the entrance before matching the price list: the rating, the speaker power and the access methods are what decide whether residents trust the door.
A door entry system releases a lock, and a lock release has to be legal. Whether a strike fails open or closed, whether a release button is required on the inside, and how the entry system coexists with a fire panel and an escape route are code matters decided locally and often by more than one authority. The published material records no certification for these products. Confirm the release arrangement with the site's fire and access-control adviser before the lock is specified, and keep the entry system separate from the life-safety circuit.
The access-control side of the system uses named interfaces: RS485 and Wiegand 26/34 on the EC20, a Wiegand interface on the face-recognition door phones, and short-circuit inputs and relay outputs on the intercom stations (A12V 2 in / 2 out, A11V 2 in / 1 out, i16S/i16SV 2 in / 2 out, A10W 1 in / 1 out with a built-in relay). Keep signal cabling separate from power where the local rules require it, earth the equipment room as the installation diagram shows, and label both ends of every control pair.
PoE is the default supply for the network side, but it is not universal in this range: the compact door phones accept PoE or 12 V DC, the A10W accepts PoE or 12 V DC, and the indoor units are wall mounted with PoE integrated. Outdoor positions must match the site: IP66 and IK10 with a −40 °C to 70 °C range on the A12V, IP65 with a rain cover on the i60 series, and IP66 with IK07 on the face-recognition range. Check the mounting position against the published rating rather than assuming a porch is indoors.
Two accessibility facts are published and worth designing in: several door phones have a line-out interface that can be integrated with an induction loop antenna, which serves residents with hearing impairment, and the indoor units carry 8 alarm inputs and 1 embedded relay for an external fire or gas alarm. On the privacy side, face recognition and door logs are personal data in most jurisdictions — the site must confirm what may be recorded, how long images may be kept, and what notice residents and visitors are given. None of that is answered by the equipment; it is answered by the building's own policy and local law.
We have not published a named reference project on this page. The site does not carry customer names or installation records until the client confirms in writing which projects may be made public.
Page author: NEXVIA EngineeringPublished:Last updated:
Covers: door entry system · telephone entry system · building entry systems · door entry systems for business · door intercom system
All IP telephony, intercom and paging equipment in this design is supplied and integrated by NEXVIA.
Running an existing platform
Replacing an older system
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