16 Rockwell Automation Publication DNET-IN001B-EN-P - January 2012
Chapter 1 Install a 1756 DeviceNet Communication Module
Install the Module
To install the module, follow this procedure.
1. Align the circuit board with top and bottom guides in the chassis.
2. Slide the module into the chassis, making sure the module backplane
connector properly connects to the chassis backplane and noting that the
module is properly installed when it is flush with the power supply or other
installed modules.
WARNING: When you insert or remove the module while backplane
power is on, an electrical arc can occur. This could cause an explosion in
hazardous location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
Repeated electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create electrical
resistance that can affect module operation.
31588-M
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