Rockwell Automation Publication ICSTT-RM448M-EN-P - February 2021 85
Chapter 5 Install the AADvance System
1. Select an applicable cable. We recommend 3-pair, overall shielded cable.
2. Remove the serial port connector from the T9100 processor base unit.
3. Make the connections shown in the illustration. Terminate the twisted
pairs with a 120 resistor in series with a 68 nF capacitor at the receiver
ends.
4. Connect the signal ground (not illustrated) from the 0 V terminal to the
slave device.
5. Insert the connector into the T9100 processor base unit.
System Security Serial networks are closed and local and have limited protocol functionality, so
they are immune to any external attack apart from local deliberate sabotage.
The AADvance system, however, with its computers and DCS interfaces, uses
Ethernet networks which are frequently part of a larger corporate network and
can expose the system to accidental or malicious infection or attack.
These steps help prevent such issues:
• Consider network and computer security, for example:
IMPORTANT
Do not connect the signal ground to the AC safety ground.
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