Redundant 48V DC power supply with automatic switchover ensuring uninterrupted 24/7 operation
- Input voltage range compliant with 48V DC telecom power systems (36-72 VDC)
- Designed for use with nominal 48V DC distribution in accordance with ETSI EN 300 132-2
- Standby operation with automatic and seamless changeover upon primary supply failure
- Suitable for redundant and high-availability power architectures
- Intended for continuous 24/7 operation in telecom and infrastructure equipment
- No manual intervention required
The RSPS-DC Standby Backup Module is intended for use in telecommunications and network equipment powered from nominal 48V DC distribution systems in accordance with ETSI EN 300 132-2. The module operates over an extended input voltage range of 36-72 VDC, supporting normal operating, abnormal, and transitional voltage conditions as defined for telecom power interfaces.
Under normal operating conditions, the RSPS-DC remains in standby while monitoring the primary DC power source. In the event of loss, degradation, or failure of the main power supply, the module automatically assumes the load without interruption. The automatic changeover mechanism ensures continuity of service and maintains equipment operation during power supply faults.
The RSPS-DC is a dedicated standby power supply developed specifically for DEVA products deployed in telecom and critical infrastructure environments. It is designed for systems with redundant 48V DC feeds and supports continuous 24/7 operation. The module contributes to high-availability power architectures, improves system resilience, and supports compliance with telecom-grade reliability requirements.
| Input | |
| Input voltage range | SCW20C: 36 – 75 VDC |
| Output | |
| Nominal output voltage | 12 V DC |
| Voltage Accuracy | 2% |
| Output power | 20 W |
| Line regulation | ±0.5 % |
| Load regulation | ±0.5 % |
| Ripple & noise (typ) | ~80 mVp-p |
| Efficiency (typ) | 89% |
| Protections | |
| Overload protection | Hiccup mode, auto recovery |
| Short-circuit protection | Yes, auto recovery |
| Over voltage/temperature protection | Yes |
| Isolation | |
| Input to output isolation voltage | 1.5 kVDC |
| EMC & Compliance | |
| EMC emission | Compliance to BS EN/EN55032, radiated Class A (without external components) |
| EMC immunity | Compliance to EN61000-4-2, -3, -4, -6 (criteria A) |
| Safety approvals | EAC TP TC 004 |
| Operating conditions | |
| Temperature | -15°C to 55°C |
| Humidity | < 95%, non-condensing |
| Altitude | 0 to 5000m above sea level |