Modular Communication Architecture
Pluggable GPRS/4G, Ethernet, HPLC/RF or G3 PLC communication modules; uplink and downlink configurable per project requirements.
Product
J52C002 Smart Data Concentrator Unit (DCU) for AMI
J52C002 is a modular smart data concentrator unit (DCU) built on a 32-bit Arm Cortex-A7 Linux platform for global AMI applications. It collects meter data, stores it locally and transfers it to the HES system. Features pluggable communication modules (G3 PLC), management of ≥300 meters, remote O&M, and firmware upgrade. Supports G3 PLC downlink communication.
Modular Communication Architecture
AMI Data Concentrator
Linux Embedded Platform
≥300 meters Meter management capacity
300 × 7 days Load profile storage
3×230/400 V Supply voltage
−25°C to +85°C Operating temperature
Product Highlights
Smart AMI Communication and Data Management
300-Meter Management Capacity
Each DCU manages at least 300 meter archives, including serial number, model and communication parameters.
G3 PLC Downlink Communication
G3 PLC downlink communication for meter reading and control, supporting automatic meter registration and network topology management.
Remote O&M via HES
Supports HES remote configuration, real-time reading, periodic reading, alarm push and DCU/meter firmware upgrade.
DCU + Meter Firmware Upgrade
Remote firmware upgrade for both DCU and meters (DLMS image transfer), plus local USB upgrade.
Auto Meter Discovery + Topology
Auto-detects new meters, tracks online status and retrieves network topology in real time.
Applications
Applications and Selection Guidance
Technical Specifications
Technical Specifications
| Wiring | 3-wire |
| Rated voltage | 3 × 230/400 V |
| Rated current | 5(10) A |
| Energy accuracy | Active: Class 0.5 (Class C); Reactive: Class 2 (Class A) |
| Pulse output | 6400 imp/kWh; 6400 imp/kvarh |
| Voltage range | 70%–130% Un |
| Frequency | 50 Hz |
| Standby power consumption | ≤8 W / 12 VA |
| Communication power consumption | ≤12 W / 15 VA |
| CPU | NXP Cortex®-A7 / i.MX6ULL (32-bit ARM) |
| SDRAM | 256 MB |
| Flash | 256 MB |
| Operating system | Linux (real-time embedded) |
| Internet protocol | IPv4 |
| Uplink ports | GPRS/4G, Ethernet |
| Downlink ports | HPLC/RF or G3 PLC |
| Local ports | 1 × RS232, 1 × USB, 1 × IR |
| Uplink communication | GPRS/4G, Ethernet |
| Downlink communication | G3 PLC |
| HES connection | TCP client with heartbeat keep-alive and automatic reconnection |
| Meter connection | G3 PLC module, 2 × RS485 ports |
| Local maintenance | USB, RS232, Ethernet Web, IR |
| Display | 160×160 dot-matrix LCD; LED indicators for operation, alarm, RS485-1/RS485-2 |
| Remote configuration | HES configures meter parameters via DCU (clock, tariff, threshold); remote relay control |
| Real-time reading | On-demand reading of meter status and instantaneous data; automatic retry up to 3 times |
| Periodic reading | Load profile, monthly billing, instantaneous curve, meter time sync; configurable interval (15 min / 1 h / 1 day / 1 month) |
| Alarm push | Monitors meter alarms and pushes to HES |
| Meter archive | Auto-detects new meters, pushes to HES, tracks online status and network topology |
| Data storage | Periodic meter data storage; 300 meters × 7 days load profile (typical) |
| Logging | Operation logs and communication records |
| Operating temperature | −25°C to +85°C (normal); −40°C to +85°C (limit) |
| Relative humidity | ≤95%, non-condensing |
| IP rating | IP51; IP54 with enclosure |
| Insulation class | Class II |
| Clock accuracy | ≤0.5 s/day |
| MTBF | ≥50,000 hours |
| Applicable standards | DLMS/COSEM (Green Book, Yellow Book, OBIS, IEC 62056) |
Structure & Dimensions
J52C002 Dimensions &
Dimensions
Wiring
FAQ
Product FAQ
What is J52C002?
J52C002 is a smart data concentrator unit (DCU) for AMI, collecting meter data, storing it locally and transferring it to HES via G3 PLC downlink.
How many meters can it manage?
At least 300 meter archives per DCU, with local storage of 300 meters × 7 days load profile (typical).
What communication does it support?
Uplink: GPRS/4G and Ethernet. Downlink: G3 PLC and 2 × RS485. Local: RS232, USB, IR and Ethernet Web.
Can it upgrade firmware remotely?
Yes. Remote DCU firmware upgrade and remote meter firmware upgrade via DCU (DLMS image transfer), plus local USB upgrade.
What operating system does it use?
Linux on a 32-bit Arm Cortex-A7 (NXP i.MX6ULL) platform with 256 MB SDRAM and 256 MB Flash.
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