0120037-J0 Rev. C
6
Figure 1 — LPS04
2. Product Overview
The LPS04 is a compact, stand-alone DC to DC up-converter system designed for distributed power communica-
tions applications using +/- 190Vdc (RFT-V circuit) over twisted copper pairs. Using switched mode technology, the
LPS04 quad output converter module provides outstanding efficiency in a compact design.
Applications include, powering mini DSLAMs, optical network terminals in fiber to the home networks, as well as
with municipal Wi-Fi access points. The LPS04 may be installed inside or outside a remote OSP power cabinet. Line
powering enables using the existing remote power node backup without the need at the remote site of AC utility or
battery backup, thus reducing the installation and operating expenses and providing flexibility related to site selec-
tions for the installation of the remote communicating equipment.
Alpha's LPS04 modular DC to DC converter unit incorporates a full range of standard features including, current
limiting and individual ground fault interrupt for each circuit. Particular emphasis is placed on recognizing a fault con-
dition and shutting down the circuit as quickly as possible to ensure the highest level of safety. Compliance wit GR-
1089-CORE Class A2 enables crafts people to work on the equipment while powered which significantly reduced
the administrative and labeling requirements and overheads for the high voltage wiring.
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Four +/- 190Vdc line powering RFT-V channels with current limiting and ground fault protection
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91% efficiency for increased OPEX savings and reduced carbon footprint
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Rugged and sealed enclosure for installation either inside or outside power cabinets
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Wide operating temperature range for deployment in harsh OSP environment
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High reliability sealed design
2.1 Product part number
Part number 0120037-001.
