Introduction
1
These operating instructions support you when installing and connecting up devices of the
SCALANCE XR-300 product group.
The conguration and the integration of the devices in a network are not described in these
operating instructions.
1.1 Purpose
The SCALANCE XR-300/XR-300EEC switches are rack switches for installation in the 19" control
cabinet. Up to 12 SFP transceivers can be plugged in, thus enabling exible network
construction and expansions. On both the eld level and the control level, the control cabinet
switches perform networking with the distributed eld devices and ensure high plant availability
with extensive diagnostics options and high transmission speeds.
The SCALANCE XR-300EEC (Enhanced Environmental Conditions) switches also feature high
immunity and can be used in an extended temperature range.
1.2 Scope of validity
These operating instructions apply to the following devices:
• SCALANCE XR322-12
• SCALANCE XR326-8
• SCALANCE XR326-8EEC
Unless mentioned otherwise, the descriptions in these operating instructions refer to all
devices of the SCALANCE XR-300 product group named above in the section on the range of
validity.
1.3 Designations used
This section describes the conventions used in this document to clearly and eciently present
information.
Classication Description Terms used
Product line The product line includes all devices and variants of all product groups.
If information applies to all product groups within the product line, the
term SCALANCE X-300 is used.
SCALANCE X-300
Product group If information applies to all devices and versions of a product group, the
term SCALANCE XR-300 is used.
SCALANCE XR-300
SCALANCE XR-300
Operating Instructions, 03/2023, C79000-G8976-C586-02 7
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