|
100 m (max) straight-through or crossover
cable. Cat. 5(e) Screened Twisted Pair cable is required between switches.
|
|
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 can be placed on either switch.
|
|
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.
|
|
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/link
must be placed on the switch and not on the PC.
|
|
Use a ring tongue terminal to connect the
ground screw of the switch to a suitable shield ground. This connection
provides a ground for the twisted pair Ethernet shielded connectors.
|
|
The type of uplink ports on this switch are
determined by the switch part number. In this example, all FP20 switches have
two 100mb/s full duplex multimode fiber-optic uplink ports. Other uplink port
types are available in fixed hardware configurations. SFP ports are not
available on this switch and this switch has no gigabit capable ports.
|
|
This switch has two fixed 10/100/1000mb/s
uplink ports and two SFP uplink ports. The SFP ports can be fitted with
optional fiber-optic SFP transceivers for long distance communications. Only
two uplinks can be active at a time in any combination of twisted pair and SFP.
Refer to the ordering information for the available SFP transceivers.
|
|
All twisted pair ports are configured to
autosense speed, autonegotiate duplex, and autodetect polarity. 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 autosense speed and autonegotiate duplex. All unused ports of the
switch can be deactivated (locked down) from the Network Device Command Center
(NDCC) after all initial connections are made to the switch. If additional
controllers or workstations need to be connected to unused ports after the
initial lock down, an additional command from the NDCC is required to unlock
the ports. After the final connections are made, the lock down command should
be reissued to the switch to lock down any remaining unused ports. Once the
ports are in a lock down state, only the original device can communicate on its
original port.
|
|
If more than one RM100 switch is required
to increase port count in an area, use any of the gigabit uplink ports for the
switch-to-switch connection to provide ample performance headroom on these
aggregating links. 100mb/s links can also be used for this purpose but normally
these links are reserved for single devices on the edge of the network such as
controllers and workstations that require much less bandwidth than
switch-to-switch links.
|
|
The serial port is not required for process
communications; it is used only for occasional out-of-band switch setup and
management.
|
|
This connector is used for a +24VDC power
supply input and relay contacts.
|
|
In this example, an SFP transceiver is used
for the connection to the next switch. The SFP module type must be matched to
the type of fiber-optic cable that is installed. Single mode and multimode
fiber-optic cable in various core/cladding diameters which contribute to the
overall distance limit, can be used with specific SFP modules.
|
|
This is a 10/100mb/s twisted pair link.
|
|
This is a 100mb/s full duplex multimode
fiber-optic link. Distances up to 5 km can be achieved depending upon the
fiber-optic port option ordered and the number of intermediate splices and
patch panels used.
|
