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FS-8700-21 LonWorks Manual Page 7 of 62
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com
4 HARDWARE CONNECTIONS
LonWorks devices are available with several different physical interfaces. The screw plug supplied with the FieldServer
LonWorks interface will connect the FieldServer to the FTT-10 network. The 9 pin D-connector can also be used to connect to
the network (FS-B4011 only). The 2-wire twisted-pair connection to the network is polarity insensitive. The FTT-10 network is
a free topology network which supports star, loop and/or bus wiring connections. Please refer to the FTT-10A Free Topology
Transceiver User’s Guide from Echelon Corporation for recommended wiring practices if necessary. The connection diagram
below shows how the FieldServer FS-B2011, FS-B30 and FS-B4011 are connected to a LonWorks network:
FS-X40
FS-X20
or
FS-X30
To other
LonWorks
Nodes
To other
LonWorks
Nodes
FieldBus
Connector
Pin 1
Pin 2
DB 9 Connector
FieldBus
Connector
To other
LonWorks
Nodes
To other
LonWorks
Nodes
Configure the remote LonWorks devices according to manufacturer’s instructions.
4.1 Service Pin
The service pin is used to commission the FieldServer onto the network using a LonWorks Network Management tool. On FS-
B2011 and FS-B4011 FieldServers the node’s unique Neuron ID will be displayed on the Error Screen of the Ruinet utility with
every service pin press.