Rockwell Automation 1797-TCAP ControlNet Ex Tap Dummy Load Installation User Manual
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4
ControlNet Ex Tap Terminator Installation Instructions
1797-5.30 - September 1999
Certified Equivalent ControlNet Ex System Diagram Items
You may use these items as equivalents for the items shown on the system
diagram.
ControlNet Ex 
Tap
1797-TPx
ControlNet Ex Coax 
Tap
Four types of connections 
available: S (straight t-tap), R 
(right angle t-tap), YS (straight 
y-tap), and YR (right angle 
y-tap) - a maximum of 48 
taps can be connected 
together by coax trunk cable
CNet Ex Trk Trm 1797-XT
ControlNet Ex Trunk 
Terminator
Simple resistor (75
Ω
) with
coax connector that must be 
on each end of the ControlNet 
Ex coax trunk for termination
Coax Trunk 
Cable
1797-RG6
Quad-Shield, RG-6 
75
Ω
Coax Trunk
Cable
Maximum (functional) length 
between 2 1797-TPx is 
3280ft (1000m) - each 
1797-TPx reduces the 
(functional) coax cable length 
by 53.4ft (16.3m)
None
None
Standard Coax Trunk 
Cable BNC Couplers
Different standard cable 
couplers, 90
o
, 180
o
, etc.
System Diagram Name
Catalog Number
Source
Coax Trunk Cable
1797-RG6
Allen-Bradley
3092A
1
Belden Wire & Cable Co.
3092A with blue jacket
Belden Wire & Cable Co.
1
Belden Wire & Cable 1189A may be used, but with functional loss of communication 
distance and/or nodes.
System 
Diagram Name
Catalog 
Number
Catalog Name
Description