IP Telephony & SIP Communication Systems · Guangzhou, China
Scenarios · parking and vehicle access
A car park is an unattended space with vehicles in it, which makes it an intercom problem before it is anything else: someone at a barrier needs to reach a person, someone on a level needs to ask for help, and the operator needs to see who is at the entry without leaving the desk. The design on this page builds that from outdoor intercom stations, call points in stairwells and lift lobbies, speakers for car-park announcements and a console for the operator — all registered as SIP extensions on the same PBX as the site telephones. Parking is named as an environment in the paging and intercom material, and car parks appear in the unattended-site list. NEXVIA designs, manufactures, supplies and commissions the system; the terminals are manufactured by NEXVIA.
Count the positions a driver or a pedestrian can be stranded at. A single-surface car park lands at 1 to 2 barrier points and 2 to 4 help points in stairwells or lift lobbies; a multi-storey car park typically runs 2 to 4 barrier stations, 6 to 12 help points and 1 operator console — 10 to 18 devices on one PBX with 24 to 496 SIP trunks behind them.
The two numbers that decide the hardware are protection and distance. The A12V is published at IP66 and IK10 with a temperature range of −40 °C to 70 °C, a 4 MP camera with IR night vision, a 10W speaker with echo cancellation and 2 short-circuit inputs and 2 outputs — enough to speak to a driver and release the barrier in the same call. Where only two-core cable reaches a column or a barrier island, the PN1 converter carries network and power over the existing pair, up to 1600 m for the network function without power, and the PN8 and PN24 switches distribute up to 8 and up to 24 devices at a maximum connection distance of 300 m for network plus power.
Announcements and alarms are part of the same design. The A233 is an IP66 horn with 30 W rated output for a surface car park, the speaker family supports up to 20 multicast zones with prioritisation, and one-key alarm activation, alarm light flashing and simultaneous calling to the management unit are stated for the IP endpoint tier. Prices are not published on this site — every car park is quoted per barrier count, help-point count and cable route.
A barrier call happens from inside a vehicle, in the rain, with the engine running. A 10W speaker with echo cancellation and a camera on the station are what make the conversation short; the relay output is what makes it unnecessary to send anyone out.
Lower levels are often outside mobile coverage, so a help point is the only way out of a problem. Help points on every level, wired to a help-point call group with a queue of up to 20 waiting calls, keep the position answerable.
Exhaust fumes, road salt, jet washing, vehicle impact and winter temperatures of −40 °C are published operating conditions for the outdoor range, not marketing language. Match the rating to the position rather than the position to the model.
The barrier is installed by one contractor, the cameras by another and the intercom by a third. The relay contacts, the ONVIF link and the speaker zones are the three interfaces where those contracts meet, so they should be drawn on one sheet before any of them starts.
| Size band | System | Devices | Notes |
|---|---|---|---|
| Surface car park, single entry — up to 60 bays | OM20G — 24 SIP trunks; 4 analog ports if a legacy gate line is kept | 1–2 barrier stations (A12V / i60K), 2–4 help points (A10W / i16S), 2–4 speakers (A233 outdoors, A212 indoors), 2–4 handsets | The desktop chassis covers a single kiosk or gatehouse; the OM20G is also the only model that can dial out through a 3G/4G USB modem, which matters at a remote site with no wired line. |
| Multi-storey car park — 200 to 600 bays, 4 to 6 levels | OM50G — 62 SIP trunks; up to 12 analog ports across 3 interface cards | 2–4 barrier stations, 6–12 help points across stairwells and lift lobbies, 1 operator console (X210i / A330i), zoned speakers per level | Ring groups hold up to 40 extensions on this model, so a help-point group can ring the control room, the gatehouse and a handset without including the whole site. |
| Car park within a larger building or campus | OM200G — 496 SIP trunks; up to 96 analog ports on 24-line interface cards | The car-park positions above plus the building entrance stations and lift lobbies, all in one dial plan, with an EC20 where lift or floor access is controlled | 4 hot-swap slots and gigabit Ethernet; the car park shares the PBX with the building, so the operator console answers doors, help points and the lift from one desk. |
| Multi-site parking operator, several car parks | OM1000-UC — 1000 SIP trunks, up to 200 concurrent calls per trunk | The per-site counts repeated, a central monitoring position with DID numbers per site where required, one shared dial plan | SIP only, with dual hot standby (3 fixed IP addresses) and multi-site networking. A central control room can answer for several car parks without a PBX per site. |
| Retrofit where only two-core cable reaches the column | OM50G — 62 SIP trunks | New stations at the barrier island and the level help points, with PN1 converters per point and PN8 or PN24 switches per electrical cabinet | PN1 carries network and power over a two-core pair with an external AC 100–240 V supply, up to 1600 m for the network function without power; PN8 and PN24 carry 8 and 24 devices at up to 300 m for network plus power. |
| Model | Where it goes | Published capability | Protection and contacts |
|---|---|---|---|
| A12V | Barrier island, entry and exit lanes | 4 MP camera with IR night vision; 10W speaker with echo cancellation; 1 access-control relay; 2 short-circuit inputs and 2 outputs; anti-tamper alarm to the control centre | IP66 and IK10, −40 °C to 70 °C; ONVIF and RTSP on the video model; wall and flush mounted |
| A11 / A11V | Service yard, staff car park, pedestrian side gate | 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 |
| i16S / i16SV | Level help points, stairwell and lift lobby | i16SV: HD camera with IR night vision, 1080p; 3W speaker with AEC; 2 short-circuit inputs and 2 outputs; 1 access control on the standard models and 2 on the -02P variants | IP65 and IK10, −30 °C to 60 °C; anti-tamper alarm to the control centre |
| i10S / i10SV | Sheltered position with a single contact | 1W speaker with AEC; G.722 and Opus; 1 short-circuit input and 1 output | −20 °C to 50 °C; intercom and call point duties where one contact is enough |
| A10W | Pedestrian help point, stairwell, plant room | Three function keys; 2W speaker with echo cancellation; one alarm input for an external emergency button; one-click call rings the host plus the call-group extensions | Standard 86 box; PoE or 12 V DC; IP54; −10 °C to 50 °C |
| i60 / i60K | Compact pedestrian column | IC card, PIN (i60K), BLE unlocking, DTMF and app entry; 2 MP camera with IR night vision; 1W speaker with AEC; 1 relay, 1 short-circuit in and 1 out | IP65 with the rain cover; 12 V DC or PoE |
| A513W | Unattended level or ramp with a camera position | All-in-one SIP speaker with a built-in 4 MP HD camera with IR night vision, built-in microphones, dual-band 2.4G/5G Wi-Fi and BLE; relay in and out for a PIR sensor, infrared sensor or strobe light | IP66; PoE or DC; up to 10 W (DC supply) |
| A233 | Surface car park and ramp announcements | Horn speaker with 30 W rated output and a built-in microphone for system self-test, monitoring, environmental noise detection and two-way voice; up to 20 multicast zones with prioritisation | IP66; PoE, PoE+ or DC |
| PA2S / PA3 | Bridging an existing speaker line in the car park | SIP paging gateways with a 10–30 W mono output that adapts to the input voltage, a line out for an external amplifier, an SOS call key, and a built-in relay on the PA2S with 1 short-circuit in and 1 out | PA2S: PoE to IEEE 802.3af or 12–24 V 2 A DC, −30 °C to 60 °C. PA3: PoE/PoE+ (IEEE 802.3at, PoE Class 4) or 12–24 V 2 A DC, −20 °C to 50 °C |
| A330i / X210i | Control room and kiosk position | A330i: 10.1-inch touchscreen, 116 DSS keys, 92 dB speaker, 8 short-circuit inputs, 1 output and 1 RS-485 interface. X210i: 106 DSS keys across three screens with a gooseneck microphone | Dual Gigabit ports with integrated PoE; group broadcasting from the desk; terminals used with the console are scanned and provisioned automatically |
| W712 | Patrol and ground staff on existing radios | RoIP gateway with a UHF 400–470 MHz radio module; one analog or DMR II radio plus one SIP call; group calls between radios and SIP phones; recording to TF card up to 128 GB | Network plus UHF radio; SIP standard protocol; web deployment and management |
| Requirement | Standalone barrier intercom and separate alarm system | This IP design | What changes operationally |
|---|---|---|---|
| What the barrier call can do | Talk only, on a dedicated pair to a kiosk | A SIP call with a relay action at the station or the console: 2 short-circuit outputs on the A12V, one relay on the A10W, a built-in relay on the PA2S | The operator speaks and releases without a second control |
| Coverage | One intercom per barrier, nothing on the levels | Barrier stations, help points on each level, stairwell and lift-lobby positions, all as extensions in one help-point group | A stranded driver or pedestrian reaches a person from any level |
| Video and identity | Not available, or a separate CCTV channel | A 4 MP IR camera on the A12V, a 4 MP camera plus microphone on the A513W, and ONVIF linkage so the call and its camera can be viewed on a VMS | The operator sees who is at the barrier before releasing it |
| Announcements | A separate amplifier with a local microphone in the kiosk | A233 horns and zoned speakers on the same system: up to 20 multicast zones with prioritisation, scheduled messages and text-to-speech in the advanced tier | The whole car park or one level can be addressed from the console |
| Alarms | A pull cord or a push button wired to a bell | One-key alarm activation, alarm light flashing and simultaneous calling to the management unit; short-circuit inputs take alarm buttons and sensors, with relay in and out on the A513W for a strobe light | The alarm and the call arrive at the same place |
| Records | None | Audio archiving of SIP paging, intercom and calls where the paging tier provides it; call detail records to a server on port 1809; radio and SIP call recording on the W712 | An incident can be reviewed rather than described |
| Patrol and ground staff | A separate radio network | Wi-Fi 6 handsets on the same extensions, or the W712 gateway putting the existing UHF radios on the system with group calls to SIP phones | One number reaches a person, not a place |
| Area | Device | Note |
|---|---|---|
| Barrier island, entry and exit lanes | A12V outdoor video intercom | IP66 and IK10 from −40 °C to 70 °C with a 4 MP camera with IR night vision, a 10W speaker with echo cancellation, an access-control relay, 2 short-circuit inputs and 2 outputs, and an anti-tamper alarm to the control centre. |
| Level help points and stairwells | i16S / i16SV intercom (i10S / i10SV for a sheltered single-contact position) | i16SV: HD camera with IR night vision at 1080p, a 3W speaker with AEC and 2 in / 2 out at IP65 and IK10 from −30 °C to 60 °C. i10S covers a sheltered position with a 1W speaker and 1 in / 1 out. |
| Pedestrian help point and lift lobby | A10W SIP mini intercom | Standard 86 box with three function keys, a 2W speaker with echo cancellation, one relay and one alarm input for an external emergency button; one-click call rings the host plus the call group. |
| Compact pedestrian column | i60 / i60K | IP65 with the rain cover, IC card, PIN (i60K), BLE unlocking, DTMF and app entry, a 2 MP camera with IR night vision, a 1W speaker with AEC and one relay; 12 V DC or PoE. |
| Unattended level with a camera position | A513W video speaker | IP66 all-in-one SIP speaker with a built-in 4 MP HD camera with IR night vision, built-in microphones, dual-band 2.4G/5G Wi-Fi and BLE, relay in and out for a PIR sensor, infrared sensor or strobe light, and up to 10 W on a DC supply. |
| Surface car park, ramp and entrance announcements | A233 horn speaker, with A212 wall or A201 ceiling speakers on enclosed levels | A233: IP66 horn with 30 W rated output and a built-in microphone for self-test, monitoring, environmental noise detection and two-way voice. A212 publishes 8 Ω with up to 15 W class D and talkback (PoE 8 W / PoE+ 15 W); the A201 rated output is printed two ways in the source, so its wattage is confirmed on the quotation. |
| Control room, kiosk and patrol staff | A330i or X210i console, with W611W / W620W handsets or a W712 radio gateway | A330i: 116 DSS keys, 92 dB speaker and 8 short-circuit inputs, 1 output and an RS-485 interface. X210i: 106 DSS keys across three screens with a gooseneck microphone. Handsets are Wi-Fi 6 with 16 DSS keys and a push-to-talk key; the W712 puts existing UHF radios on the same system. |
One for every place a person can be stranded without a phone: each barrier, each pedestrian route, each stairwell, each lift lobby and the far end of each level. A multi-storey car park typically lands at 6 to 12 help points plus 2 to 4 barrier stations.
The stations carry the contacts for it: the A12V has 2 short-circuit outputs, the A10W has one relay and the PA2S gateway has a built-in relay with 1 short-circuit in and 1 out. The release itself is wired by the site own barrier or gate contractor.
Yes. The A12V carries a 4 MP camera with infrared night vision, the A513W combines a 4 MP IR camera with an IP66 speaker, and terminals are stated as compatible with SIP and ONVIF — so the call can be linked to a camera and reviewed on a VMS where the site runs surveillance.
With zoned speakers and horns on the same system. The A233 is an IP66 horn with 30 W rated output for the surface areas, the A212 wall speaker and A201 ceiling speaker cover enclosed levels, and the family supports up to 20 multicast zones with prioritisation.
The call follows the same rules as any other call on the PBX. It can ring a group rather than one position, and it can be routed on to a duty phone, a handset or an out-of-hours number, with time-of-day routing in up to 3 periods per day.
Stairwells and lift lobbies get their own help points, because that is where a person without a car is most likely to be alone. The i16S/i16SV covers an exposed position at IP65 and IK10 from −30 °C to 60 °C with a 3W speaker, a camera on the video model and 2 short-circuit inputs and 2 outputs.
Both, in documented ways. The W712 gateway integrates a UHF 400–470 MHz radio module and supports one analog or DMR II radio plus one SIP call with group calls between them; the PA3 and PA2S gateways drive passive speakers and legacy analog horn speakers.
Position, device and what it does
| Position | Device | What it does | Interfaces to check |
|---|---|---|---|
| Entry and exit barriers | A12V outdoor video intercom | Talk to the driver, verify on camera, release the barrier | 2 short-circuit outputs; 1 access-control relay; ONVIF on the video model |
| Levels and stairwells | i16S / i16SV | Help call from an exposed position, with video on the SV model | 2 in / 2 out; 1 or 2 access controls by variant; anti-tamper alarm |
| Pedestrian doors and lift lobbies | A10W | Help or door call from a standard 86 box with an external button option | 1 relay; 1 alarm input; PoE or 12 V DC |
| Compact columns | i60 / i60K | Card, PIN, BLE, DTMF and app entry with a camera | 1 relay; 1 in / 1 out; IP65 with the rain cover |
| Unattended levels | A513W | Speaker and camera in one IP66 enclosure, with relay contacts for a strobe | Relay in and out for a PIR sensor, infrared sensor or strobe light |
| Surface areas | A233 horn | Announcements across the open car park | 30 W rated output; IP66; PoE, PoE+ or DC |
| Control room or kiosk | A330i / X210i console | Answering, releasing, paging and alarm display | A330i 8 in / 1 out / RS-485; X210i 106 DSS keys with group broadcasting |
| Patrols and ground staff | W611W / W620W handset or W712 radio gateway | Take the call away from the kiosk or onto the existing radio | Wi-Fi 6 coverage, or UHF 400–470 MHz channel plan |
Walk the car park at survey and mark every position a person can be alone in, then match the device to the exposure at that position rather than to the car park as a whole.
A car-park barrier is a vehicle control device that also sits in an escape and fire-access route: whether it fails open or closed, whether a manual release is required, how fire service access is maintained and how a pedestrian route is kept clear are local requirements decided by the fire authority, the building control function and sometimes a traffic authority. The published equipment provides the interfaces — 2 short-circuit outputs on the A12V, one relay on the A10W, a built-in relay on the PA2S, and 1 output on the A330i console — but the release policy, the signage and the fail-safe behaviour are site decisions. Confirm them before the barrier contractor orders hardware, and keep the intercom wiring separate from the life-safety circuit.
Car parks appear in the unattended-site environments named in the paging and intercom material, and the risk profile is a person alone in a level with no staff nearby. A compliant design says what happens when a help point is pressed: which position rings first, how long it rings, what happens when it is not answered, whether a camera is linked to the call, and how the response is recorded. One-key alarm activation, alarm light flashing and simultaneous calling to the management unit are published capabilities; the response procedure is a site policy that should be written, tested and reviewed with the operator own security team.
A car park is a wet, cold, dirty and sometimes struck environment, so the rating of each position matters more than the feature list. Published ratings are IP66 and IK10 for the A12V and A11/A11V (from −40 °C to 70 °C), IP65 and IK10 for the i16S/i16SV (from −30 °C to 60 °C), IP65 with a rain cover for the i60 series, IP66 for the A233 horn and the A513W video speaker, and IP54 for the A10W indoor panel. Mounting height, protection from vehicle impact, drainage at the mounting point and the cable entry are installation matters: choose positions with the site engineer rather than from the drawing, and confirm the rating against the actual exposure.
A car-park intercom with cameras and audio archiving collects personal data: number plates in view, faces at the barrier and recorded speech. What may be recorded, how long recordings and images are kept, what signage and notice is required and who may export the material differ by jurisdiction and are the operator own responsibility under the applicable law. Audio archiving of SIP paging, intercom and calls is a published capability of the paging tier and TF card image storage up to 128 GB is published on the door phones — the retention rule and the notice are policy. Nothing on this page is a compliance determination, and the published material records no certification for these products.
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: parking intercom · parking intercom system · car park intercom · parking barrier intercom · parking help point
All IP telephony, intercom and paging equipment in this design is supplied and integrated by NEXVIA.
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