User's Manual Part 1

December 20, 2004 SCP-LPS20x-011-012-01H
ADC Telecommunications, Inc. 3
OVERVIEW
The LPS-20xR is an outdoor/low profile span-powered Access Point (AP). The LPS-300C Central Office (CO) power
module provides span powering to the LPS-20x. Each LPS-300 can power two individual LPS-20xs. There are
currently two types of APs available: the LPS-20xR L1A Outdoor series and the LPS-20xR L1B Low Profile series
units.
Telco carriers in the Wireless Fidelity (Wi-Fi
®
) market can create a carrier class access point with the following
features:
• Span powering over symmetric or asymmetric, rate adaptive Digital Subscriber Loop (DSL) from any
Digital Subscriber Line Access Multiplexer (DSLAM) supporting xDSL transport
• Hardened outdoor packaging
• Roadmap support for class Quality of Service (QoS) in the Asynchronous Transfer Mode (ATM) DSL
backhaul
• Simple Network Management Protocol (SNMP) Management Information Base (MIB), allowing integration
into their management system
• Product family support for fatter pipe, NxDS1 backhaul
• Low first-cost deployment from remote cabinet DSLAM and Digital Loop Carrier (DLC) platforms
• NEBS and OSMINE compliant
Wi-Fi deployment fits into the overall DSLAM broadband services market. It allows Telco carriers to use their
existing infrastructure to easily be part of the public Wi-Fi arena. The LPS-20x is a simple end device that, with the
exception of the span powering, uses standards based interfaces. This permits it to be deployed directly from
existing DSLAM equipment without the need to introduce new CO ATM switching elements into the Telco carrier’s
network.
The two-wire dry xDSL interface from the DSLAM is routed through a power shelf co-located in the CO (Figure 1).
The LPS-300C located in the power shelf does not regenerate the xDSL signal; rather, it superimposes a Class A2,
DC powering voltage on the outside plant (OSP) interface. This is a standard xDSL signal since it comes from a
DSLAM. Therefore, there is no proprietary signal added to the stream.
Figure 1. CO-Based DSLAM Deployment
13-LPS20xR