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Simplex 4010 NION Installation/Operation Manual Version 2 Document 51998 Rev. A1 03/26/03
1.4: SMX Network Transceivers
Connection of the network wiring to the NION is made via an SMX transceiver. The network SMX transceiver
daughter board is a component of every NION. This transceiver provides the network medium interface for NION
network communication.
There are four styles of SMX transceivers: FTXC for FT-10 (Free Topology) wire bus and star, S7FTXC for style seven
wiring requirements, FOXC for FT-10 fiber point-to-point and DFXC for bi-directional fiber. The proper transceiver
must be ordered separately for the specific medium it is to utilize.
The transceivers are mounted to the NION mother board using a header strip and two standoffs. Refer to the
board layout diagram for the placement of the SMX transceivers.
NOTE: All network connections are transformer isolated, making all network communication immune to
ground fault conditions. Therefore, no ground fault supervision of the Echelon network is required or
provided.
FTXC-PCA and FTXC-PCB Network Transceivers
When used by the FTXC transceiver, FT-10 allows up to 8,000 feet (2438.4 m) per segment in a point-to-point
configuration, up to 6,000 feet (1828.8 m) per segment in a dedicated bus configuration, or up to 1,500 feet
(457.2 m) per segment in a star configuration. Each segment can support 64 nodes, and with routers, the system
can be expanded up to 200 nodes.
Data A
Data B
Twisted Pair
FTXC-PCA
FTXC-PCA
FTXC-PCA
FTXC-PCA
FTXC-PCA
Figure 1-3a: FTXC-PCA Transceiver Wiring
FTXC-PCB
FTXC-PCB
FTXC-PCB
FTXC-PCB
FTXC-PCB
FT-10 Transceiver
Header Connection
Electrical Termination
Jumper
Data B
Data A
Figure 1-3: FTXC-PCA and FTXC-PCB Network Transceivers
FTXC-PCA
FTXC-PCA
FTXC-PCA
FTXC-PCA
FTXC-PCA
FT-10 Transceiver
Header Connection
Electrical Termination
Jumper
Data A
Data B
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