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Chapter 4 - Operation
4.2.6
ControlNet Network
A ControlNet Network is a single coaxial trunk cable broken up into segments interconnected by links.
Node Connections to the network are created through a Tap and drop cable. Repeaters are used to link
segments together and for changes in media from coax to fiber optic. All points on the network must
either have an interface card or a terminator. Terminators are comprised of termination resistors, which
are used to mark the beginning and end of a trunk segment and Tap Dummy Load (TDL) which
terminate a drop cable when no node is present. The model number for the ControlNet Universal
Interface is TC-PCIC02-100.
The following image displays the PCIC card used by Honeywell.
TC-PCIC02: This is a universal PCIC card.
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