Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 102)

102 Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
Chapter 2 Installation Instructions
Connect the Adapter to the
Ethernet Network
The adapter module supports DLR (Ring) and Star topologies. For more details
on topologies, see System Architecture on page 16 .
The adapter module has four autosensing 10/100BASE-TX Ethernet ports for
connecting to a local area network through a minimum Cat5e shielded twisted
pair (STP) Ethernet cable. There are two ports for each adapter module.
The adapter module Ethernet ports are on the 1715-A2A adapter base unit and
are identified in this table.
The fixed connectors on the adapter module are female RJ45 modular jacks. Use
a minimum Cat5e shielded twisted pair (STP) cable with male RJ45 modular
jacks for network cabling.
IMPORTANT For wiring details, see Table 12 .
IMPORTANT The 1715 Redundant I/O System requires the use of a minimum Cat5e shielded
twisted pair (STP) Ethernet cable.
Table 12 - Allocation of 10/100BASE-TX Ports to Adapter Modules
1715-AENTR Adapter Module 10/100BASE-TX Ports
Adapter A A1, A2
Adapter B (where present) B1, B2
IMPORTANT Most network connections use straight-through cables. Crossover cables are
not needed due to the intelligence or functionality of the switch. If a direct
connection is required from the adapter to the personal computer (for
example, during setup), it can be necessary to use a crossover cable. This
depends on the characteristics of the interface in the personal computer.