Engineering FAQ · Wanlin
Where can Alexandria equipment builders source private-label X9 access control board solutions?
RFQ requirements for X9 access control board references. Confirm the exact model, firmware, provider role and required evidence before discussing configuration or private-label scope.
Direct answer
RFQ requirements for X9 access control board references. Confirm the exact model, firmware, provider role and required evidence before discussing configuration or private-label scope.
Product overview: What the X9 Android motherboard actually is
The X9 is a commercial-display smart motherboard built on the Allwinner A133 platform: a 64-bit quad-core Cortex-A53 cluster running at 1.6GHz, paired with an Imagination PowerVR GE8300 GPU and running Android 10. It belongs to the same deployment family as advertising machines, digital signage players, IoT gateways, smart door access terminals, smart retail terminals, O2O smart devices and face recognition panels - which is exactly why one carrier now gets re-spun into eight different product lines.
The design brief behind the X9 was cost-per-screen, not benchmark score. That is the right brief for a 38-unit advertising rollout and the wrong brief for a face recognition door terminal, and that tension is what produces most of the incidents in this report. Seven characteristics define the platform:
- Quad-core Cortex-A53 at 1.6GHz with a GE8300 GPU. Plenty of headroom for 4K decode, playlist compositing and a browser-based CMS client. Not a neural engine, so anything that looks like AI has to be re-scoped onto the CPU or moved up a platform.
- 1GB LPDDR4 as standard, 2GB on request. Fine for a single-stream player. Tight for a 4K player plus a camera preview plus a local database, and the OOM kill usually lands on the CMS client rather than the player.
- On-board eMMC, 8GB standard with 16GB and 32GB options. eMMC is the reason the X9 survives a 7x24 power-cut duty cycle that kills SD-card designs, and the reason the offline content cache has to be sized deliberately rather than left to grow.
- LVDS or MIPI panel drive with 4K decode. Single or dual LVDS directly drives 50Hz and 60Hz panels; a 30-pin or 40-pin MIPI lane covers the panel families that moved to MIPI. The panel power jumper is what decides whether the first unit lights up.
- Four USB ports, two serial lanes, RS232 or TTL selectable per lane. Two USB HOST sockets, two USB A-type sockets, USB0 doubling as OTG, plus a full GPIO, I2C, SPI, PWM, ADC, IR and key/LED island.
- Wired plus wireless with room to grow. 10M/100M adaptive Ethernet on RJ45, WiFi with optional 5G WiFi and Bluetooth, an Ipex antenna seat, and 3G/4G module expansion for sites with no LAN at all.
- 120x75mm, 6-layer, 1.6mm thick, four 3mm screw holes. Small enough to disappear behind a panel, dense enough that the assembly notes in this report matter more than the data sheet.
Specifications: What the AS-X9-ACS-CUS custom X9 motherboard ships with
The AS-X9-ACS-CUS is a re-spin of the standard X9 carrier: a 6-layer PCB at 120x75mm, 1.6mm thick, four 3mm screw holes, industrial-grade components throughout, with conformal coating optional. The specifications below are the X9 default; every line is re-specable on request.
| Block | Specification |
|---|---|
| SoC | Allwinner A133, 64-bit quad-core ARM Cortex-A53 up to 1.6GHz |
| GPU | Imagination PowerVR GE8300, 4K video decode and hardware compositing |
| Memory | 1GB LPDDR4 standard; 2GB LPDDR4 on request |
| Storage | On-board eMMC 8GB standard; 16GB and 32GB options; TF card socket for expansion |
| Operating system | Android 10; AOSP or GMS build; kiosk mode with a locked launcher and auto-start app |
| Display output | Single or dual LVDS driving 50Hz or 60Hz panels directly; MIPI DSI at 30-pin or 40-pin; 15-pin LVDS header |
| Decode and formats | Up to 4K video decode; wmv, avi, flv, rm, rmvb, mpeg, ts, mp4; BMP, JPEG, PNG, GIF |
| Playback modes | Loop, scheduled and interrupt playback, with per-screen timelines on request |
| Touch | Infrared, optical, capacitive and resistive panels; plug-and-play HID configuration with no debugging; 10-point and 20-point profiles; I2C touch header |
| USB | Four USB ports: two USB HOST sockets plus two USB A-type sockets; USB0 doubles as OTG; USB2 and USB3 on 4-pin 2.0mm headers |
| Serial | Two serial lanes on 4-pin 2.0mm headers, each selectable between RS232 and TTL level |
| Expansion | GPIO, I2C, SPI, PWM, ADC, infrared receive header, IR remote header, key and LED indicator header, UBOOT burn key |
| Audio | Left and right channel output with on-board amplifier, 4-pin speaker header supporting dual 2 ohm 5W or 4 ohm 3W speakers; PH headphone output |
| Network | RJ45 10M/100M adaptive Ethernet; WiFi with an Ipex antenna seat, optional 5G WiFi; Bluetooth 4.0 or 5.0; 3G/4G module expansion |
| Clock and scheduling | RTC real-time clock with a coin-cell seat; scheduled power on and off; hardware watchdog and auto restart |
| Upgrade paths | USB upgrade, TF card upgrade, PC upgrade, remote network upgrade and OTA |
| Peripherals supported | Thermal printer, card reader, PIN pad, fingerprint reader, camera, ID card reader, QR code scanner, barcode scanner, with demo test programs |
| Software | Compatible with mainstream publishing software and industry application software; SDK, BSP porting, driver adaptation, API development, system UI trimming, boot animation and pre-installed apps |
| PCB | 6-layer board, 120mm x 75mm, 1.6mm thickness, four 3mm mounting holes |
| Environment | Operating temperature -20C to 70C; relative humidity up to 80% |
| Lifecycle | 10-year supply, 10-year BSP patches, 10-year component traceability |
PCB dimensions and interface layout: 120x75mm and 22 positions
The X9 is deliberately compact - 120mm by 75mm on a 6-layer 1.6mm stack-up with four 3mm screw holes on the corners. That density is what lets it disappear behind a panel or inside a door terminal, and it is also why the interface positions have to be agreed before the enclosure is cut. The layout below is the standard map; the AS-X9-ACS-CUS re-spin can move any of it.
| No. | Name | Definition | Connector |
|---|---|---|---|
| 1 | DC power | 12V input | DC jack |
| 2 | PH | Headphone output | PH socket |
| 3 | TF | TF card socket | TF socket |
| 4 | USB0 | USB OTG | USB A-type |
| 5 | UBOOT | System software burn key | Tact key |
| 6 | USB1 | USB host | USB A-type |
| 7 | RJ45 | 100M wired network socket | RJ45 |
| 8 | USB2 | USB host | 4-pin 2.0mm |
| 9 | USB3 | USB host | 4-pin 2.0mm |
| 10 | LVDS | LVDS panel interface | 15-pin 2x2.0mm |
| 11 | MIPI | MIPI panel interface | 30/40-pin 0.5mm |
| 12 | BL | Panel backlight interface | 6-pin 2.0mm |
| 13 | Jumper | Panel power supply jumper | 3-pin 2x2.0mm |
| 14 | Serial 3 | Serial port 3, RS232 or TTL selectable | 4-pin 2.0mm |
| 15 | Serial 2 | Serial port 2, RS232 or TTL selectable | 4-pin 2.0mm |
| 16 | Battery | RTC clock battery seat | Coin cell |
| 17 | WiFi | WiFi antenna seat | Ipex |
| 18 | I2C | I2C touch interface, expandable to a touch panel | 6-pin 2.0mm |
| 19 | Key | Key and indicator LED interface | 6-pin 2.0mm |
| 20 | IR | Remote receiver interface | 3-pin 2.0mm |
| 21 | SPK | Speaker interface | 4-pin 2.0mm |
| 22 | DC power | DC 4-pin power input | 4-pin 2.0mm |
Two positions on this map cause more field returns than the rest of the board combined: the 3-pin panel power jumper and the LVDS pin-1 orientation. Both are covered in the assembly notes below.
Electrical performance: The numbers your power budget has to live inside
The X9 runs on a single 12V input and publishes a per-rail budget rather than a total. That distinction is the difference between a board that survives a seven-peripheral build and one that reboots at random. The figures below are measured with no panel and no other peripherals attached unless stated.
| Item | Minimum | Typical | Maximum |
|---|---|---|---|
| Supply voltage | -- | 12V | -- |
| Supply ripple | -- | -- | 100mV |
| Working current (no panel, no peripherals) | -- | 300mA | 500mA |
| Standby current (no panel, no peripherals) | -- | 10mA | 15mA |
| USB supply current | -- | -- | 350mA |
| Working current (LVDS) | Depends on the panel | ||
| Standby current (LVDS) | Depends on the panel | ||
| Panel backlight supply current | Depends on the panel | ||
| 3.3V peripheral total supply | -- | -- | 800mA |
| 5V peripheral total supply | -- | -- | 2A |
| 12V peripheral total supply | -- | -- | 2A |
| Relative humidity | -- | -- | 80% |
| Operating temperature | -20C | -- | 70C |
Read as a system: four USB devices at 350mA each already consume 1.4A of the 5V budget before a scanner or a printer is counted, and an I2C touch controller plus a sensor island plus a camera module will reach 800mA on 3.3V faster than most integrators expect. The industrial automation engineer in Alexandria who evaluates the total peripheral stack up front never sees the random-reboot failure mode.
Assembly and installation notes: Seven things that void a return
Every one of these is taken from the X9 assembly guidance, and every one of them has generated a real field return. They are also the seven items the industrial automation engineer in Africa should put on the incoming QC sheet before the enclosure is closed.
- Panel voltage and pin-1 direction on LVDS. Check that the panel voltage matches the setting on the 3-pin panel power jumper and that the panel current is within the board's budget. Check the direction of pin 1 on the panel header before it is seated - a reversed LVDS cable is the single most common no-image return we see.
- Backlight voltage, current and the 20W line. Confirm the backlight voltage and current against the panel data sheet. If the backlight draws more than 20W, feed it from a separate power board rather than from the X9 12V rail.
- Peripheral IO level matching. When extending USB, serial or IO peripherals, verify the IO level of each device. A 5V device on a 3.3V lane does not fail immediately - it fails in month three.
- Serial level and TX/RX wiring. Each serial lane is selectable between RS232 and TTL, and the two are not interchangeable. Confirm the level selection and confirm that TX and RX are crossed, not straight through.
- Power input, polarity and total budget. Confirm the supply is landed on the power input connector and that polarity is correct. Evaluate the total peripheral load before fixing the supply voltage and current - the per-rail numbers above are budgets, not headroom.
- Short circuits against the bare board. A bare board inside a metal enclosure will find a short eventually. Insulate, stand off, and keep the board clear of any conductive surface.
- Mounting without deforming the PCB. Do not collide with on-board components during fitting, and never force a screw into a misaligned hole. A deformed 6-layer board produces intermittent faults that no amount of firmware work will ever reproduce on the bench.
Application matrix: 8 customization scenarios for the AS-X9-ACS-CUS
The X9 is one carrier platform across eight different commercial display deployments. The matrix below shows the most common OEM/ODM customization angles an industrial automation engineer in Africa walks through in the first scoping call.
| Scenario | Catalog board limit | AS-X9-ACS-CUS customization |
|---|---|---|
| Advertising machine and signage player | 6.8 s to first frame, no interrupt channel | Local playlist cache, interrupt playback lane |
| Smart door access and face terminal | 2.6 s CPU face match, no offline mirror | Local template store, offline credential mirror |
| Vending and smart retail unit | 3.2 s redraw, 3.3V rail exhausted | GPU compositing, re-budgeted 3.3V domain |
| Parcel and fresh food locker | 2.4 s lock round-trip, no sensor lane | Local lock bus, GPIO and I2C sensor lane |
| Self-service query and ticketing | 3.6 s first query, no offline queue | Cached local index, offline ticket queue |
| Conference tablet and whiteboard | 320 ms stylus lag, fixed HID map | GPU annotation layer, per-panel HID profile |
| Industrial HMI and IoT gateway | 2.8 s Modbus refresh, no recipe store | Cached register map, local recipe store |
| Multi-scenario OEM/ODM family | Three carriers, two BSP trains | One 120x75mm carrier, one BSP train |
Frequently asked questions
Should I choose 1GB or 2GB LPDDR4?
Answer: 1GB is fine for a single-stream player with a local playlist. Move to 2GB if the unit runs a camera preview, a browser-based CMS client and a local database at the same time, which is typical for vending, locker and self-service builds.
How much eMMC do I need?
Answer: 8GB is the standard tier and covers a player with a modest content cache. 16GB suits multi-language builds and 32GB suits offline 4K content libraries and long audit trails. TF card expansion is available on all tiers.
LVDS or MIPI - which should I specify?
Answer: Specify against the panel you can actually source for ten years. The X9 drives single or dual LVDS at 50Hz or 60Hz directly and offers MIPI DSI at 30-pin or 40-pin, and the AS-X9-ACS-CUS re-spin can carry both so a panel change mid-lifecycle is not a board change.
Can the board drive a backlight above 20W?
Answer: Not from the board's own 12V rail. Any backlight above 20W should be fed from a separate power board, and we document that split in the assembly notes that ship with every custom build.
Do you support infrared, optical, capacitive and resistive touch panels?
Answer: Yes. All four are supported with plug-and-play HID configuration and no debugging, with 10-point and 20-point profiles and a documented calibration routine for sunlit IR frames.
Can the unit keep running with the network down?
Answer: Yes. A local content cache plus an offline queue keeps players, lockers and ticketing units serving through a link outage, then reconciles when the connection returns, with no lockout and no blank screen.
Does the X9 support 5G WiFi, Bluetooth and 4G?
Answer: 2.4G WiFi is standard, 5G WiFi and Bluetooth 4.0 or 5.0 are options on the same radio seat, and 3G or 4G module expansion is available for sites with no LAN.
Published by: Wanlin Manufacturing Group, AndroidSBC Export Division
Published on: September 24, 2026
Data sources: in-house factory testing + X9 Android motherboard specification V2.0 + electrical performance measurements + certification files + partner case studies
Company address: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China
References: X9 datasheet V2.0 + factory quality manual + third-party test reports + customer shipment records
Contact: Email: Androidsbc@163.com | Phone: +8613261677119 | Website: https://www.androidsbc.com
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