RTD Embedded Technologies, Inc.
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13
BRG2110 User’s Manual
4
Functional Description
Block Diagram
The Figure below shows the functional block diagram of the CAN SPIDER. The various parts of the block diagram are discussed in the
following sections.
Figure 6: CAN SPIDER Block Diagram
CAN Bus
The CANSpider active CAN bus hub can connect up to four fiber optic CAN de
vices, such as RTD’s
ECAN527-2 PC/104 CAN bus interface
boards together. Additional CAN bus devices may be connected to the galvanically isolated twisted pair CAN ports. This structure enables
flexible expansion of CAN Spiders as well as connection of twisted pair CAN devices to your network. The flow through from J4 to J5 with
jumperable termination resisters allows simple cascading of CANSpiders for more fiber ports or to attach additional twisted pair ports. See
Figure 7 CANSpider Application Example and Figure 8 CANSpider Standalone Application Example.