Mercury 255
Product code: 255
Mercury 250
Product code: 250
APPLICATION
Mercury 250 is a data concentrator unit (DCU) designed for operation in AMR/AMI systems for automatic and automated collection from electricity meters of commercial and/or technical readings, electrical parameters measurement results, event logs, metering instruments and objects status data, collected data preprocessing and storage, maintaining the universal time, data exchange with the upper-level data-processing center and high end software (HES) and adjacent systems.
MODIFICATIONS
Mercury 250 modifications are available with different number and type of communication channels with electricity meters.
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| Meter communication channels | RS-485, PLC-II |
| Upper-level data-processing center communication channels | GSM, Ethernet |
| Number of RS-485 channels | up to 4 |
| Supported number of meters, pcs | |
| • for GRL.12 and GRL.22 modifications | up to 3x1024 |
| • for GR.4R modification | up to 4x256 |
| Absolute error of clock rate per day without external synchronization, s | ±0.5 |
| Supply voltage, V | 3*230 |
| Calibration interval, years | 4 |
| Warranty period, years | 3 |
| Mean time between failures, min, h | 90,000 |
| Operating temperature range, °C | -40 to +70 |
| Dimensions (LхWхH), mm | 280x220x300 |
— Supports data transmission modes via GPRS with a dynamic and static IP address.
— Supports data transmission via CSD.
— Supports data collection from external devices via RS-485 interfaces (most electricity meters represented in Russian market).
— Built-in modem for data transmission via power line (PLC)<sup>*</sup>.
— Individual event logging.
— Server-to-meter connectivity via ‘transparent tunel’ channel as an option.
— Supports exchange protocols with adjacent systems: IEC 60870-5-101/104, RTU 325.
* - only in GRL.12 and GRL.22 modifications
Table of commercially available DCU modifications.
| Modification | Features |
|---|---|
| Mercury 250 GRL.12 | Supports data collection from meters via PLC-II, RTU-325 communication protocols for operation in Mercury-AMI (Advanced Metering Infrastructure) systems. |
| Mercury 250 GRL.22 | Supports data collection from meters via PLC-II, RTU-325 communication protocols and the protocols for operation in “Telescope +” systems and systems working with DLMS/COSEM, SPODES* protocol. |
| Mercury 250 GR.4R | RTU-325 data communication protocols and the protocols for operation in Mercury-AMI (Advanced Metering Infrastructure) systems. Data collection support via 4 RS-485 channels. |
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