Rockwell Automation 1756-HIST2G FactoryTalk Historian ME 2.1 Installation Instructions - Manual (Page 14)

14 FactoryTalk Historian Machine Edition Module
Publication 1756-IN611A-EN-P - February 2010
Install or Remove the Module Under Power
This module is designed to be installed or removed while chassis power is
applied. Rockwell Automation recommends that you stop all data collection
services before you remove the module.
Wire the Ethernet Connector
Use an RJ45 connector to connect to the Ethernet. Wire the connector
according to the following illustration:
WARNING When you insert or remove a module while backplane power is on, an
electrical arc may occur. An electrical arc can cause personal injury or
property damage by:
•
sending an erroneous signal to your system’s field device
causing unintended machine motion or loss of process control.
•
causing an explosion in a hazardous environment.
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.
RJ 45
8
1
8 ------ NC
7 ------ NC
6 ------ RD-
5 ------ NC
4 ------ NC
3 ------ RD+
2 ------ TD-
1 ------ TD+