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100 m (max) straight-through cable. The
shield on the controller's RJ45 connector connects only to a Faraday cage in
the controller; not to the controller's DC ground. Therefore, the RJ45
connectors are floating and the single point of ground is made at the hub or
switch to which the controller is connected. Build this cable assembly with a
shielded, metal-enclosed RJ45 connector on
both ends .
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100 m (max) straight-through cable. To
prevent ground loops, build this cable assembly with a shielded, metal-enclosed
RJ45 connector on one end and an isolated, plastic-enclosed RJ45 connector on
the other end. The metal connector end of this cable assembly/link must be
placed on either switch and not on the PC.
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All twisted pair ports are configured to
auto-sense speed and auto-negotiate duplex. Do not hard-configure speed or
duplex on the twisted pair switch ports or duplex mismatches, which create
communications failures, could occur. Always allow the switch to auto-sense
speed and auto-negotiate duplex.
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If switch management is to be used over
the network via telnet or a web browser, be aware that access privileges and
port configuration requirements exist for the twisted pair switch-to-switch
links. Refer to "Managing Cisco Switches" in Books Online for information.
Refer to the list of reserved IP addresses that are allowed for switches on
DeltaV systems. Refer to the Cisco documentation for web management
information. A dedicated non-DeltaV PC is required for switch management.
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The Management station has special
hardware and software requirements. Refer to the related topics for information
before connecting the station to the DeltaV Control Network. Refer to the Cisco
documentation for web management. A dedicated non-DeltaV PC is required for
switch management.
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For a 100Mbit fiber-optic link, use only a
GLC-GE-100FX 100BASE-FX SFP module in the Cisco 2960-24TC-L switch.
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For a 100Mbit fiber-optic link, use only a
GLC-FE-100FX 100BASE-FX SFP module in the Cisco 2960-8TC-L switch.
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The 100BASE-FX fiber-optic link has duplex
LC connectors on all SFP modules and MTRJ connectors on the Cisco 2950C switch.
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