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1747-5.34 - June 1998
A two-port active physical layer component that reconstructs all traffic it
hears on one network segment side and retransmits it to another network
segment side. Repeaters allow for extensions in network distance,
conversion to alternate media (coaxial cable, fiber, etc.) and altering the
topology of the network.
Repeater
An application-level command set that Allen-Bradley programmable
controllers use to communicate across networks.
PCCC (Programmable Controller Communications
Commands)
The rate at which access to the network is granted.
NUT (Network Update Time)
Any physical device connecting to the ControlNet network that requires a
network address in order to function on the network.
Node
The network address of a node on the ControlNet network. This address
must be in the range of 1 to 99 (decimal) and be unique to that subnet. A
subnet can contain a maximum of 99 nodes.
Network Address
A collection of connected nodes (end devices). The connection paths
between any pair of nodes can include repeaters, routers, bridges, and
gateways.
Network
An input/output (RJ-45 style) connector for a programming terminal to
gain full access to the network.
NAP (Network Access Port)
P-4