Siemens SIMATIC NET System Manual page 179

Figure 4-23
The managed Industrial Ethernet switches of the SCALANCE X-300/XR-300 product line are
suitable for the setup of electrical and/or optical line, ring or star structures with transmission
rates of 10/100/1000 Mbps in high-performance plant networks. The SCALANCE X-300/XR-
300 have a wide range of functions for high network security and availability. They support
numerous IT standard functions such as VLAN, IGMP Snooping/Querier or STP/RSTP,
Quality of Service and allow for seamless integration of automation networks into existing
company networks. By establishing virtual networks (VLAN) with the SCALANCE X-300/XR-
300, an existing network can be divided into multiple virtual partial networks. The
SCALANCE X-300/XR-300 also support the standardized redundancy procedures Spanning
Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP). This allows a subnetwork to
be connected redundantly to a higher-level company network with reduced requirements for
the reconfiguration time (within seconds). With the support of the Multiple Spanning Tree
Protocol (MSTP), a network can be divided into multiple partial segments.
The devices have a rugged metal housing with IP30 degree of protection and are designed
for use in switch boxes and control cabinets. The X-300 models are provided for mounting
on a DIN rail, an S7-300 standard rail or for wall mounting; the XR-300 models for mounting
in the 19" rack.
The devices are equipped with up to 16 fixed electrical RJ45 ports with securing collar for
secure connection of IE FC RJ45 Plug 180. The partially or fully modular setup of the
devices with 2 to 12 slots offers the possibility of individual equipping of the device with
suitable 2-port media modules. These include two device variants with PoE ports
IEEE 802.3at Type 1 (corresponding to IEEE 802.3af) for supply of the PoE capable end
devices with voltage and data.
The supplied C-PLUG removable data storage medium can be used to store configuration
and project engineering data and simply transfer them when replacing a device. The
redundant power supply and the ring structures redundantly structured via MRP and HRP
ensure high network availability.
The device can be monitored on site with a signaling contact with on-site configuration.
Furthermore, the devices provide integrated system diagnostics with PROFINET, SNMP,
integrated Web server, SINEMA server or SINEC NMS and an automatic function for
sending e-mails for remote diagnostics and signaling via the network.
The TS variants are released according to EN 50155/ and EN 50121-4 for use in railway
applications.
The EEC variants are designed for usage in extended temperature ranges of -
40 °C to +70 °C. Note the reduced operating temperatures of -40 °C to +70 °C when using
media modules or -40 °C to +60 °C when using SFP pluggable transceivers.
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
SCALANCE XR324-12M, fully modular device equipped with media modules
SCALANCE network components
4.5 SCALANCE X Industrial Ethernet Switches
179