Tianjin Estel Electronic Science and Technology Co.,Ltd
TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO.,LTD (ESTEL(GUANGDONG) TECHNOLOGY CO., LTD) We are the professoinal supplier of outdoor telecom cabinet, air conditioner, heat exchanger, and telecom
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MR483000HG2B-GS Rectifier Module of Telecom Power System
MR483000HG2B-GS is a power supply device that converts standard AC voltage into stable 48Vdc for
communication power supply system.
For a larger load capacity, the rectifier modules can be connected in parallel, or an additional independent monitoring module can be used for intelligent control.
The rectifier module is a plug-in modular unit designed to be compatible with racks and cabinets.
Appearance of Telecom Power System
Module introduction of Telecom Power System
| Reliability | |
| MTBF | >500,000 hours (25℃) |
| Audible Noise | |
| Specification | ≤55dB(A) (40℃) |
Interface description of Telecom Power System
Definition of module gold finger of Telecom Power System
| Pin number | Pin function description |
| 1,2 | Output 48V- |
| 3,4 | Pre-charge |
| 5,6 | Output 48V+ |
| 7 | Group address wire of rectifier |
| 8 | Group inner address wire of rectifier |
| 13 | CANL |
| 14 | CANH |
| 31,32 | module protection ground |
| 33,34 | AC input neutral( N) |
| 35,36 | AC input phase line( L) |
Module panel introduction of Telecom Power System
Description of the indicator lights of the rectifier module of Telecom Power System
| Indicator | Indicator color | Status | Status description | Suggested solution |
|
Power indicator |
Green | On | Module AC input is normal | Normal state, no action required |
| Off | The AC input of the module is abnormal (no input power supply, input power supply over-voltage and under-voltage, etc.) | Check whether the input is normal; if the input is normal, replace the rectifier module | ||
| 4Hz flashing (4times/sec) | Manual query status | Normal state, no action required | ||
|
Alarm indicator |
Yellow | Off | No abnormal alarm | Normal state, no action required |
|
On | Temperature pre-alarm (ambient temperature exceeds 65℃ ~ over-temperature shutdown) | Check whether the ventilation of module are blocked and whether the ambient temperature is normal | ||
| Dormancy shutdown (when the module is in dormancy shutdown, only the protection indicator is on, and the module does not report an alarm) |
Normal state, no action required | |||
| 290Vac<Input voltage<300Vac | Check if the input voltage is normal | |||
| Module current limiting | Normal state, no action required | |||
| 4Hz flashing (4times/sec) | Module hardware address error | Check if module is inserted in place and locked | ||
| 0.5Hz flashing (1times/2s) | The communication between the module and the outside is interrupted | Replace the rectifier module or monitoring module; check the CAN bus wiring of the power system for errors | ||
|
Fault indicator |
Red | Off | No abnormal alarm | Normal state, no action required |
| On | The output is locked due to over-voltage or the module is not inserted in place | Unplug the rectifier module, wait for more than 1 minute, and then insert it | ||
| No output caused by internal fault of rectifier module | Replace the rectifier module |