Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 26)

Chapter
Installing the BASIC Module 1
1 -2
Verify all the items in your package against the packing sheet. If any of
the items are missing or incorrect, contact your local Allen-Bradley sales
office.
BASIC Module
User
Manual
(Cat. No. 1771-DB)
Important: Save packing materials in case you need to return an item for
servicing.
The BASIC module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The maximum current drawn by
the BASIC module is:
0.65A – without a device connected to the DH485 port
0.75A – with a DH-485 Interface/Converter (1747-PIC) connected to
the DH485 port
Add this value to the requirements of all the other modules in your I/O
chassis to prevent overloading the chassis backplane and/or backplane
power supply.
Refer to the documentation accompanying your power supply for
additional information.
Install your optional memory module into the BASIC module before
placing the module into the I/O chassis.
Refer to Chapter 3 “Installing and Replacing Components” for information
on how to install the optional memory module.
Unpack the Module
Calculate Power Requirements
Install Memory Module
Chapter