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6GK5112-2BB00-2AA3

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The Siemens 6GK5112-2BB00-2AA3 SCALANCE X112-2 is an unmanaged Industrial Ethernet switch that connects twelve copper devices with two multimode fiber segments.
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Technical specifications for 6GK5112-2BB00-2AA3

  • Manufacturer:
    Siemens
  • Part Number:
    6GK5112-2BB00-2AA3
  • Product Family:
    Siemens SCALANCE
  • Product Type:
    SCALANCE X112-2 Unmanaged Industrial Ethernet Switch
  • Stock:
    1
  • Copper Ethernet Ports:
    12 RJ45 ports
  • Fiber Ethernet Ports:
    2 multimode BFOC/ST ports
  • Copper Transmission Rate:
    10/100 Mbit/s
  • Fiber Transmission Rate:
    100 Mbit/s
  • Rated Supply Voltage:
    24 V DC
  • Permitted Supply Range:
    18 to 32 V DC
  • Maximum Current Consumption:
    0.45 A
  • Maximum Power Loss:
    5.16 W
  • Redundant Power Input:
    Yes
  • Signaling Contact Rating:
    24 V DC at 0.1 A
  • Protection Rating:
    IP30
  • Operating Temperature:
    -10 to +70 °C
  • Mounting Options:
    DIN rail, S7-300 rail or wall mounting
  • Parallel Redundancy Protocol:
    Supported
  • Weight:
    2.4251 lbs (1.1 kg)
  • Estimated shipping dimensions:
    12x12.5x12.4cm
  • Tariff Code:
    85176200
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Media Paths Power Inputs Port Diagnostics Mounting Limits

Features:

  • Twelve RJ45 ports exchange frames with two 100 Mbit/s multimode fiber interfaces.
  • Redundant 24 V DC inputs feed one unmanaged switching assembly.
  • Port and supply indicators separate link activity from power or contact alarms.
Copper and fiber media share the switching fabric without a commissioning database.

The signaling contact can carry a monitored state to a separate control input.

Multiple mounting methods keep the protected enclosure within the control cabinet.

The Siemens 6GK5112-2BB00-2AA3 SCALANCE X112-2 Industrial Ethernet Switch may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK5112-2BB00-2AA3 SCALANCE X112-2 Switch Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Relating copper stations to the fiber uplinks

  • RJ45 channels: Twelve ports connect electrical Ethernet devices at the supported negotiated rate.
  • Fiber channels: Two BFOC/ST interfaces carry fixed-rate multimode optical links.
  • Switching path: Frames received on either medium are forwarded to the destination port without user programming.
  • Protocol option: The documented redundancy function applies only when the surrounding network uses its required arrangement.

Keeping the switching electronics supplied

  • Dual feeds: Two 24 V DC terminals provide redundant input paths to the same unit.
  • Supply range: Each feed must stay within the documented DC limits.
  • Power demand: Cabinet supply sizing must cover the switch current and power loss.
  • Fault contact: The floating contact transfers the monitored state to external control wiring.

Reading network and device state locally

  • Link state: Port indicators show whether a physical connection is established.
  • Traffic state: Activity indication changes as frames pass through the associated interface.
  • Supply state: Power indicators distinguish the available DC input paths.
  • External alarm: The signaling contact makes the selected fault state available outside the switch.

Installing the IP30 switch in its enclosure

  • Rail choices: The housing attaches to a standard DIN rail or the documented S7-300 rail.
  • Wall option: Fastening points also permit the stated direct wall-mount arrangement.
  • Enclosure duty: IP30 protection requires installation where cabinet conditions satisfy the application.
  • Temperature range: The surrounding air must remain inside the specified operating limits.
Description
Siemens 6GK5112-2BB00-2AA3 is a SCALANCE X112-2 unmanaged Industrial Ethernet switch that joins twelve copper stations and two multimode fiber links in a plant network. The switch forwards frames between those media without requiring a stored user configuration.

Across 6GK5112-2BB00-2AA3, each RJ45 interface negotiates a 10 or 100 Mbit/s copper connection, while the two BFOC/ST interfaces carry 100 Mbit/s traffic over multimode fiber. This separation lets local electrical devices reach a fiber backbone through the same switching unit.

Power enters 6GK5112-2BB00-2AA3 through redundant 24 V DC inputs, so either feed can maintain the switch electronics when the other supply path is removed. A floating signaling contact reports the monitored fault condition to an external input circuit.

Local LEDs on 6GK5112-2BB00-2AA3 distinguish supply state and port activity before traffic reaches the connected controller or workstation. DIN-rail, S7-300-rail and wall-mount options place the IP30 enclosure inside the required cabinet arrangement.
Alternative Names
6GK51122BB002AA3 6GK5112 2BB00 2AA3 6GK5 112-2BB00-2AA3 Siemens SCALANCE X112-2 SCALANCE X112-2 6GK5112 6GK5112-2BBOO-2AA3 6GK5I12-2BB00-2AA3 X112-2 Industrial Ethernet Switch
Technical notes
Siemens 6GK5112-2BB00-2AA3 forwards Ethernet frames without configuration; match the fiber pair and copper link settings to the connected network segments.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
A copper station has no link after 6GK5112-2BB00-2AA3 is installed; what should be checked first?
Check the assigned RJ45 LED on 6GK5112-2BB00-2AA3, the copper pair and the peer device's 10/100 Mbit/s negotiation. This separates a physical-link problem from normal unmanaged switching behavior.
When adding a fiber uplink to 6GK5112-2BB00-2AA3, which media details must match?
The optical path connected to 6GK5112-2BB00-2AA3 must use multimode fiber, BFOC/ST termination and the documented 100 Mbit/s rate. A copper SFP or single-mode path does not match those interfaces.
If one DC feed to 6GK5112-2BB00-2AA3 is lost, how can the remaining supply path be distinguished?
Use the two supply indicators and the floating signaling contact on 6GK5112-2BB00-2AA3 to identify the missing feed. The remaining input must stay inside the documented DC range.
What should receive the signaling-contact output from 6GK5112-2BB00-2AA3?
Wire the floating contact of 6GK5112-2BB00-2AA3 to an external control or alarm input that monitors switch state. It is separate from the Ethernet data ports and supply terminals.
Before selecting 6GK5112-2BB00-2AA3 instead of a nearby SCALANCE switch, what configuration must be confirmed?
Confirm that the installation needs an unmanaged 6GK5112-2BB00-2AA3 with twelve RJ45 ports and two multimode BFOC/ST ports. Matching only the SCALANCE family name can select the wrong media layout.

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