Publication 1769-UM002B-EN-P - July 2005
2-6        Installation and Wiring
6. To allow communication between the controller and module, move the 
bus lever fully to the left (4) until it clicks. Ensure it is locked firmly in 
place.
7. Attach an end cap terminator (5) to the last module in the system by 
using the tongue-and-groove slots as before. 
8. Lock the end cap bus terminator (6). 
Mounting
Minimum Spacing
Maintain spacing from enclosure walls, wireways, adjacent equipment, etc. 
Allow 50 mm (2 in.) of space on all sides for adequate ventilation.
Figure 2.2 Space Requirements
ATTENTION
When attaching I/O modules, it is very important 
that the bus connectors are securely locked together 
to ensure proper electrical connection.
IMPORTANT
A 1769-ECR or 1769-ECL right or left end cap must be 
used to terminate the end of the bus.
ATTENTION
During panel or DIN rail mounting of all devices, be sure 
that all debris (metal chips, wire strands, etc.) is kept from 
falling into the module. Debris that falls into the module 
could cause damage at power up.
Host Controller
Compact I/O
Compact I/O
Compact I/O
Compact I/O
Compact I/O
End Cap
Side Side
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