User Guide

6 LonWorks Technical Data Honeywell
2. LonWorks C4 Option Board Technical Data
2.1 General
LonWorks
connections
Interface Pluggable connector (5 mm)
Channel type TP/FT-10
Transfer cable Twisted pair
Communications
Baud rate 78 Kbit/s
Ambient
operating
temperature
–10°C…50°C
Storing
temperature
–40°C…70°C
Humidity <95%, no condensation allowed
Altitude Max. 1000 m
Environment
Vibration 0.5 G at 9…200 Hz
Safety
Fulfils EN50178 standard
Table 1. LonWorks technical data
2.2 Physical Media and Wiring
LONWORKS networks can be implemented on many different physical media. Honeywell
OPT-C4 option board is equipped with an FT-X1 transceiver supporting the Free
Topology transformer coupled network, which allows the network wire to be connected
as bus, star, loop or combination of these. This media reaches a communication speed
of 78kBits/s. The FT-X1 transceiver is compatible with Echelon’s LPT-10 Link Power
Transceiver, and these transceivers can communicate with each other on a single
twisted pair cable.
termination
termination
Figure 1. Doubly Terminated Bus Topology
termination
Figure 2. Singly Terminated Bus Topology