Siemens 6GK5204-2BB00-2AA3 SCALANCE X204-2 Managed Industrial Ethernet Switch

Overview

SIEMENS SCALANCE X-200

6GK5204-2BB00-2AA3 SCALANCE X204-2 Managed Industrial Ethernet Switch

Connect four copper Ethernet links and two multimode fiber links with network management, redundant DC supply inputs and a fault-signaling contact.

At a Glance

Brand	Siemens
Model	6GK5204-2BB00-2AA3
Product Type	Managed industrial network switch
Core Function	Connect copper and fiber network segments
Application	Industrial Ethernet and PROFINET networks

Copper and multimode fiber

Four RJ45 ports connect local equipment and two BFOC ports connect fiber segments.

Network diagnostics

Web-based management, PROFINET IO integration and LEDs provide station and port information.

Replaceable configuration storage

An optional C-PLUG supports configuration transfer during service.

Product Overview

6GK5204-2BB00-2AA3 is the SCALANCE X204-2 managed switch for combining twisted-pair machine connections with multimode fiber network links. The copper interfaces support 10 and 100 Mbit/s operation, while the optical interfaces operate at 100 Mbit/s full duplex.

Redundant 24 V DC inputs, a configurable signaling contact and network-management functions support integration into industrial networks, including redundant ring operation with the appropriate network design.

Ordering focus: Match the BFOC multimode fiber and 1310 nm optical link to the installed network, and keep the exact hardware article distinct from its later successor.

Key Functions

Link local equipment to fiber segments

Four copper ports serve nearby Ethernet devices while two BFOC interfaces provide multimode fiber connections over distances up to 3 km.

Monitor network and power conditions

LED diagnostics and a signaling contact indicate monitored conditions, while web-based management provides configuration and diagnostic access.

Transfer the switch configuration during service

The optional C-PLUG stores the device configuration for maintenance and exchange workflows.

Official Specifications

Copper Network Ports	4 RJ45 ports, 10/100 Mbit/s, half or full duplex
Optical Network Ports	2 BFOC/ST interfaces, 100 Mbit/s full duplex, 100BASE-FX
Optical Transmission Medium	Multimode 50/125 µm or 62.5/125 µm fiber; 1310 nm wavelength
Maximum Fiber Segment Length	3 km under the specified fiber and attenuation conditions
Maximum Standard Copper Link	100 m with IE FC TP standard cable and the specified connectors
Power Supply Inputs	2 × 24 V DC SELV; permitted range 18 to 32 V DC
Current at Rated Supply	215 mA
Power Loss at 24 V DC	5.16 W
Input Overcurrent Protection	Resettable PTC fuse, 0.6 A / 60 V
Signaling Contact Rating	24 V DC; maximum 100 mA
Power and Fault Connections	4-pin plug-in supply terminal block and 2-pin signaling-contact terminal block
Operating Ambient Temperature	−10 to +60 °C
Storage and Transport Temperature	−40 to +70 °C
Operating Humidity	Below 95%, without condensation
Altitude-Dependent Ambient Limit	Up to 2000 m at 56 °C; up to 3000 m at 50 °C
Address Aging Time	30 seconds
Copper Port Adaptation	Autonegotiation, MDI/MDIX automatic crossover and automatic polarity correction

Official source:Siemens product manual and technical specifications

Frequently Asked Questions

Can I connect ST fiber plugs to 6GK5204-2BB00-2AA3?

Yes, the BFOC sockets correspond to the ST connector format.

Does 6GK5204-2BB00-2AA3 support Network diagnostics for mobile equipment?

Use multimode fiber with a 50/125 µm or 62.5/125 µm construction suitable for 1310 nm transmission.

How long can a fiber segment connected to 6GK5204-2BB00-2AA3 be?

The maximum segment length is 3 km when the specified fiber and attenuation requirements are met.

Can I force a different speed or half-duplex mode on the optical ports of 6GK5204-2BB00-2AA3?

No, the optical ports use fixed 100 Mbit/s full-duplex transmission.

Do the copper links of 6GK5204-2BB00-2AA3 require crossover cables?

No, the RJ45 ports support automatic MDI/MDIX crossover.

How can I retain the network configuration when replacing 6GK5204-2BB00-2AA3?

Use the optional C-PLUG to store and transfer the switch configuration.

What contact load can I connect to the fault output of 6GK5204-2BB00-2AA3?

Keep the signaling-contact circuit within 24 V DC and a maximum current of 100 mA.

Compatibility & Ordering Notes

Before ordering 6GK5204-2BB00-2AA3: Match the installed multimode optics, BFOC connectors, supply arrangement and network configuration before selecting this hardware version or assessing its listed successor 6GK5204-2BB10-2AA3.

Compatibility Checklist for 6GK5204-2BB00-2AA3

• Use multimode 1310 nm links rather than the single-mode connections of an LD variant.
• Keep optical links at the fixed 100 Mbit/s full-duplex setting.
• Plan the optional C-PLUG and backup configuration for service exchange.
• Wire both supply inputs and configure the monitored fault conditions for the installation.

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