A large-screen visual interaction terminal for information display, device control and networked management. The MDC-21720P runs on the RK3568 quad-core Cortex-A55 platform with Android 11 / Linux support, and features a 21.5-inch full-view capacitive touchscreen at 1920×1080. It is well suited to upgrading conventional displays, split host systems and control panels into an all-in-one terminal with large-screen touch, device communication and networked operation — making information display fuller and on-site operation more intuitive.
| Common Requirements / Pain Points | Large-screen projects must handle display, touch and device control at the same time | Split solutions need an extra host, touch panel and adapter cables, making the structure complex | The site needs to connect serial devices, USB peripherals and the back-end network | Network conditions in public spaces or on-site equipment are complex |
|---|---|---|---|---|
| How the MDC-21720P solves it | 21.5-inch FHD capacitive touchscreen integrating host, system and common interfaces | An all-in-one industrial terminal reduces integration between screen, host and interface boards | RS232×2, RS485×2, USB 2.0×3, USB 3.0×1, USB OTG×1, Gigabit RJ45 | Gigabit RJ45, Wi-Fi & BT, standard SIM card, optional 4G |
| Customer Value | Upgrades a conventional display into an operable, networkable and expandable smart interaction terminal | Simplifies the overall structure, lowering on-site installation and maintenance complexity | More flexible peripheral connection for easier business expansion | Supports wired, wireless and mobile deployment for distributed terminal management |
| Model | MDC-21720P-L10 | MDC-21720P-L11 |
|---|---|---|
| Configuration | DDR 2 GB / eMMC 16 GB | DDR 4 GB / eMMC 32 GB |
| Screen Brightness | 350 cd/m² | 350 cd/m² |
| Interfaces | RS232×2, RS485×2 USB 2.0×3, USB 3.0×1, USB OTG×1 |
RS232×2, RS485×2 USB 2.0×3, USB 3.0×1, USB OTG×1 |
| Part Number | MDC-21720P |
|---|---|
| CPU | RK3568 quad-core 64-bit Cortex-A55, up to 2.0 GHz |
| Configuration | DDR: onboard 2 GB (4 GB optional); eMMC: onboard 16 GB (32 GB/64 GB optional) |
| Operating System | Android 11 / Linux |
| Dimensions | 533.6×320.9×46.7 mm (subject to final mechanical drawing) |
| Brightness | 350 cd/m² (Typ) |
| Resolution | 1920×1080 |
| Viewing Angle | Full viewing angle |
| Serial Ports | RS232×2, RS485×2 |
| USB | USB 2.0×3, USB 3.0×1, USB OTG×1 (Type-C) |
| Audio | 1x mono MIC / stereo HP, 1x stereo SPK |
| GPIO | IO×4 |
| Ethernet | 1x RJ45 10M/100/1000Mbps auto-sensing |
| Wi-Fi | Wi-Fi & BT module |
| SIM Card | Standard SIM card |
| Power | DC 12V input, DC5.5×2.1 mm |
| TF Card | 1x TF card slot |
| Button Openings | 1x Recovery button opening |
| Environment | Temperature: 0℃~60℃; Humidity: 0%~90% RH, non-condensing |
| Interface Direction | Serial Communication | USB / OTG | Network Communication | Audio & Control Expansion |
|---|---|---|---|---|
| Specification Source | RS232×2, RS485×2 | USB 2.0×3, USB 3.0×1, USB OTG×1 (Type-C) | RJ45 10M/100/1000Mbps, Wi-Fi & BT, standard SIM card, optional 4G | MIC / HP, SPK, GPIO IO×4, TF card, Recovery button opening |
| Customer Value | Suitable for control boards, sensors, card readers and print modules. | Suitable for scanners, readers, debugging, external storage and common USB peripherals. | Suitable for connecting large-screen terminals to back-end systems, remote management and on-site networking. | Convenient for expanding audio interaction, basic control, storage and maintenance. |
| Model | MDC-21720P-L10 | MDC-21720P-L11 |
|---|---|---|
| Configuration | DDR 2 GB / eMMC 16 GB | DDR 4 GB / eMMC 32 GB |
| Screen Brightness | 350 cd/m² | 350 cd/m² |
| Interfaces | RS232×2, RS485×2 USB 2.0×3, USB 3.0×1, USB OTG×1 |
RS232×2, RS485×2 USB 2.0×3, USB 3.0×1, USB OTG×1 |
| Type | 4G Module | 4G Module | 4G Module | Adapter | External Wi-Fi Antenna | External 4G Antenna | Mounting Bracket |
|---|---|---|---|---|---|---|---|
| Part NO. | EC200A-CN | EC200N-CN | EG800AK-CN | Chinese Standard | 2.4 GHz magnetic-mount antenna | 4G magnetic-mount antenna | // |
| Description | Cat 4, Mini PCIe | Cat 1, Mini PCIe | Cat 1 LCC | 12 V / 3 A | 3 m extension cable | 3 m extension cable | Optional |
| Pairing Direction | 4G Module / External 4G Antenna | External Wi-Fi Antenna | Barcode Scanners / Card Readers / Printers | Sensors / Control Boards | Mounting Bracket |
|---|---|---|---|---|---|
| Suitable Projects | Large-screen self-service terminals, public service terminals, sites where cabling is difficult | Commercial spaces, store terminals, wireless deployment scenarios | Self-service, identity verification, query and payment terminals | Industrial control, equipment status acquisition, smart locker control | Large-screen fixed installation or complete-unit embedding projects |
| Customer Value | Improves networking flexibility for different on-site conditions | Improves the configurability of wireless connectivity options | Extends business interaction and credential output capabilities | Supports device connection via RS232 / RS485 / GPIO | Simplifies mechanical adaptation and on-site installation |
