Key Features

  • 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

Tech Specs

  • Function Free topology link power twisted pair transceiver with integral +5VDC power convertor
  • Data Communications Type Differential Manchester coding
  • Network Voltage 42.4VDC supplied by LPI-10 Link Power Interface Module. Nominal 48VDC inputto LPI-10 Interface provided by customer’s power supply
  • Application Current Output at Node 100mA @ 5VDC ± 10%
  • EMI Designed to comply with FCC Part 15 Level B, EN55022 Level B, and CISPR 22 Level B
  • ESD Designed to comply with EN 61000-4-2, Level 4
  • Radiated Electromagnetic Susceptibility Designed to comply with EN 61000-4-3, Level 3
  • Fast Transient/Burst Immunity Designed to comply with EN 61000-4-4, Level 4 (network cable only)
  • Surge Immunity Designed to comply with EN 61000-4-5, Level 3
  • Conducted RF Immunity Designed to comply with EN 61000-4-6, Level 3
  • Listings Recognized by UL to Standards UL 60950, 2000 and CSA C22.2 No. 60950, 2000
  • Recognized by TÜV EN 60950
  • Clock Rates 20, 10, 5, or 32.5 MHz input clock. Clock supplied by Neuron Chip and automatically configured bythe LPT-11
  • Transmission Speed 78 kilobits per second
  • Maximum LPT-11 Devices Per Segment 128 with LPT-11 output of 5VDC @ 25mA
  • 64 with LPT-11 output of 5VDC @ 50mA
  • 32 with LPT-11 output of 5VDC @ 100mA
  • Network Cabling 1See User’s Guide for compatible cables
  • Network Length in Free Topology 21000m (3,280 feet) maximum total wire with one repeater
  • 2500m (1,640 feet) maximum total wire with no repeaters
  • 2500m (1,640 feet) maximum node-to-node distance
  • Network Length in Doubly Terminated 24400m (14,430 feet) with one repeater
  • Bus Topology 22200m (7,210 feet) with no repeaters
  • Network Bus Polarity Polarity insensitive
  • Power-down Network Protection High impedance when unpowered
  • Connector Thru-hole pins (1.8mm spacing)
  • Network Terminator Termination in LPI-10 Link Power Interface Module
  • Operating Temperature -40 to +85°C
  • Non-operating Temperature -40 to +85°C
  • Operating Humidity 
  • (non-condensing) 25-90% RH @ 70°C
  • Non-operating Humidity
  • (non-condensing) 95% RH @ +70°C
  • Packaging Single In-line Package

LPT-11 Link Power Twisted Pair Tranceiver Datasheet


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