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The LORAIN® XP 4870 / 4890 (LXP) are
the younger siblings to the LXP 48500 platform, bringing internal distribution
to the existing high capacity 2RU power shelf platform. The XP 4870 / 4890 platform is built from the same
high powered LXC300 controller and rectifiers, but allows the system to be
completely configured into a compact, 2RU system solution. Applications
for the XP 4870 / 4890 include Digital Loop Carrier, small microwave, Digital
Subscriber Line, FTTx solutions, Radio Base Stations, Point of Presence, fiber
repeaters, or data center applications requiring -48VDC power.
The power shelf allows for up to (3) 1750 watt 48VDC rectifiers for a total of 4500 watts of power conversion. A single AC feed is available for both
120VAC or 208/240VAC inputs. The internal distribution can be configured for a number of different options:
- Internal distribution configured with load and/or battery shunts
- Low voltage load or battery disconnect
- Up to (4) 1-150A load distribution circuit breakers/fuse positions
- Up to 10 GMT load distribution fuse positions
The controller in the LXP System commands up to 17 rectifiers, has a 2-line VFD display for extreme temperature operability, and is temperature hardened to 80°C operation. Feature enhancements include:
- SNMP capability
- Battery reserve time monitor
- Battery discharge plotting
- Loss of redundancy alarm
- Sequential rectifier start
- Rectifier and battery age tracking
- Constant power mode of operation
- 50VA ring generators
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