LPT-11 Link Power Twisted Pair Transceiver Models 50040-02 and 50040R-02 Feature Complete LONWORKS free topology communication transceiver and power supply in a miniature SIP Receives both network data and power on a single twisted wire pair Provides unmatched electrical noise isolation Polarity insensitive network wiring 78 kilobits per second network bit rate for distances up to 500 meters (free topology) and up to 2200 meters (doubly terminated bus topology) Supports free topology star, bus, and loop wiring Compatible with the FTT-10A Free Topology Transceiver, as well as the FT 3120 /FT 3150 Smart Transceivers Supplies 5VDC 100mA maximum for node power Meets the requirements of the LONMARK TP/FT-10 channel type Description The LPT-11 Link Power Twisted Pair Transceiver provides a simple, cost-eective method of adding a network-powered LonWorks transceiver to any Neuron Chip-based control system. The link power system sends power and data on a common twisted wire pair, and allows the user to install LPT-11 transceivers with virtually no topology restrictions. Power is supplied by a customer-furnished nominal 48VDC power supply, ows through the LPI-10 Link Power In- terface Module where it is regulated to 42.4VDC, and then passes onto the twisted wire pair. The LPT-11 transceiver eliminates the need to use a local power supply at each node since node power is sent from a central power supply over the same twisted wire pair that handles network communications. The LPT-11 transceiver consists of a Single In-Line Package (SIP) containing a 78kbps dieren- tial Manchester coded communication transceiver, a power supply that extracts power from the twisted pair network, and connections for the Neuron Chip Communications Port (CP) lines and twisted pair network. The LPT-11 transceiver supports free topology wiring, freeing the system installer from the need to wire in a bus topology. Star, bus, and loop wiring are all supported by this architec- ture. Free topology wiring reduces the time and expense of system installation by allowing the wiring to be installed in the most expeditious manner. It also simplies network expansion by alleviating the need for the installer to follow strict rules about stub lengths. www.echelon.com Typical Wiring Topologies Supported by the LPT-11 Link Power Transceiver capability of the LPT-11 transceiver elimi- nates the need for local power supplies at each node, resulting in equipment and LPI-10 labor cost savings. Single Termination Bus/Line Using the LPT-11 transceiver can save thou- LPI-10 sands of hours of development time com- pared with designing a custom transceiver. LPI-10 Termination The transceiver is designed to comply with Star Double Termination Bus/Line FCC Part 15, Level B, and CISPR 22 Level B regulations, minimizing time consuming and expensive laboratory transceiver test- ing. As a UL, CSA, and TV recognized component, the LPT-11 transceiver can be LPI-10 LPI-10 integrated into a product with minimal ad- ditional safety testing. The transceiver is small enough to t into virtually any appli- cation, and is economically priced for OEM Mixed Loop applications of any volume. Echelon oers a comprehensive range of Should it be necessary to add more nodes substances (RoHS) in electrical and elec- development tools, network interfaces, or wire runs in excess of 500 meters, link tronic equipment. The LPT-11 transceiver routers, and network services tools to sim- power segments can be interconnected by includes an integral switching power supply plify the task of designing products using a router or a physical layer repeater. that requires minimal external components the LPT-11 transceiver. Technical support to furnish +5VDC at up to 100mA. This for the transceiver is available through Model 50040R-02 is compliant with the current is typically used to power a Neuron Echelons LonSupport Premier technical European Directive 2002/95/EC on the re- Chip and application electronics, sensors, assistance program. striction of the use of certain hazardous actuators, and displays. The high current LPT-11 System Block Diagram Sensor LPT-11 Actuator Device +5VDC power FT 3120 / FT 3150 Smart Transceiver Device To additional LPT-11 or 48VDC 42.4VDC max. FT 3120/ LPI-10 Power FT 3150 Interface Supply Smart Transceiver Devices LPT-11 Device FT 3120 / FT 3150 Smart Transceiver Device LPT-11 Device www.echelon.com