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100 m (max) straight-through or crossover
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 must be
placed on the switch and not on the PC.
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100 m (max) straight-through or crossover
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 can
be placed on either end of the link.
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100 m (max) straight-through or crossover
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 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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The CIOC with a
multimode fiber-optic network interface (MTRJ port), is an edge device for an
end-of-line group of remotely located CHARMs I/O. CIOCs with a fiber-optic
network interface cannot be daisy-chained and are used for star-connected
CHARMs networks as shown in the image. The fiber-optic MTRJ port is for use
with multimode fiber-optic cable with diameters of 62.5/125 or 50.125 µm. The
maximum distance supported is in the 2 kilometer range; however, the actual
distance supported is influenced by the number and quality of fiber-optic
splices, patch panels, and grade and attenuation of the fiber-optic cable.
Refer to the CIOC Carrier specifications for the fiber-optic link budget.
Single mode
fiber-optic cable is not
supported. For single mode fiber applications, a low port number, external
fiber-optic switch can be used to link the twisted-pair version of the CIOC
using fiber-optic cable. Refer to the DeltaV Smart Switch Product Data Sheets
for more information.
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The serial port is not required for process
communications; it is used only for occasional out-of-band switch setup and
management.
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The firewall IPD supports up to eight
redundant controllers on its protected side in any combination of M-series and
S-series controllers, and any number of CIOCs.
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Use a ring tongue terminal to connect the
ground screw to a suitable shield ground. This connection provides a ground for
the twisted-pair, shielded Ethernet connectors.
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