Rockwell Automation Allen-Bradley ControlNet 1786 Series, Installation Instructions Manual, Page: 13 / 74

Publication CNET-IN002A-EN-P - December 2001
Overview of The ControlNet Coax Media System 1-5
Segments
A segment is a collection of Coax trunk-cable sections, taps and two
terminators.
The total allowable length of a segment depends upon the number of
taps in your segment and the Coax cable type used. See page 2-1 for
detailed information.
Repeaters
Use repeater adapters and modules to increase the number of taps,
extend the total length of your segment, or create a star configuration
(go off in multiple directions from one point). The number of
repeaters and cable length total is limited depending on your network
topology. Refer to Chapter 2 of this manual for information on system
limitations.
When you insert a repeater into your cable system, you create a new
segment. You can attach up to 4 repeater modules to one repeater
adapter. Refer to Chapter 2 for topology examples. The same
restrictions on the number of taps and cable length apply to this new
segment. Refer to Chapter 2 of this manual for information on system
limitations.
T
T
T
T
N N
N
N
40959
trunk-cable
segment
trunk-cable
N
N
N
N
N N
T
T T T
T T T
T
R
T
N
40960
segment segment