Vista LM104-P50 ユーザーズマニュアル

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Product Overview 
 
The Vista Electronics LM104-P50 module provides connectivity between PC/104-based systems 
and the Echelon Local Operating Network (LON). The module features full compliance with 
Echelon’s LonMark Interoperability Guidelines, greatly simplifying hardware and software 
integration into systems built around LonWorks.  
 
The MS-DOS software drivers supplied with the LM104-P50 module were developed using 
Echelon’s Microprocessor Interface Program (MIP) and function in the same way as the MS-DOS 
software driver supplied with the Echelon SLTA. The LM104-P50 is 100% compatible with 
Echelon’s API (Application Program Interface), so any program that complies with the API will 
work transparently with the LM104-P50.  QNX drivers, provided by Steinhoff Automation, are also 
available (please contact VISTA Electronics Sales). 
 
The module contains one 3150-type Neuron chip, one 32K EPROM containing LON system 
software, and one 32K static RAM chip (24K available) for network message buffering.  It also 
contains one of several network interfaces as outlined below.  It interfaces with other LON nodes in 
standalone, peer-to-peer or polled environments. 
 
The LM104-P50 module (except Options 5/5C) is compliant with the PC/104 specification, version 
2.3 for an 8-bit module with a 16-bit stackthrough connector.  Mechanical and electrical 
specifications are listed in the Appendix A. 
This guide is specific to board revisions B2 and B3 for Options 1/2/3/6, and board revision C.0 
for Options 5/5C. 
LM104-P50 Network Interface Options 
 
Option 1 
RS-485 multi-drop configuration, 39Kbps 
Option 2 
Transformer-coupled twisted pair, 78Kbps 
Option 3 
Transformer-coupled twisted pair, 1.25Mbps 
Option 5 
Echelon PLT-22 Power Line Carrier, 5Kbps 
Option 5C 
Echelon PLT-22 Power Line Carrier w/CENELEC support, 5Kbps 
Option 6 
Echelon FTT-10A Free Topology Transceiver, 78 Kbps 
 
Related Products 
 
VEPC-2 
Single- or two-phase (120Vac Max.) AC line coupler for Options 5 and 5C 
VEPC-3 
Three-phase (250Vac Max.) AC line coupler for Options 5 and 5C