The fast Ethernet switch with the product code RSB20-0900MMM2SAABHH is designed by Hirschmann and intended for professional industrial systems. The unit has 9 available ports and it connects to a 24 Volts DC rated voltage source. The device is approved for installation in hazardous locations and it meets the standards for the safety of industrial control equipment.

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Warranty: 1 year Networking-Hardware Warranty Included
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Repairs: We offer repair service for the RSB20-0900MMM2SAABHH.
Exchange: Exchange credit for your defective unit available.

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About RSB20-0900MMM2SAABHH

The catalog number RSB20-0900MMM2SAABHH describes a Hirschmann managed switch which operates on a voltage of 24 Volts DC. The unit is part of the RSB20 series and it comes with a 6-pin plug-in terminal block for the power supply and signaling contact and a V.24 RJ11 interface socket. The unit supports the usage of multi-mode fiber cable in a length of up to 4000 meters. The cable is rated for an 11-decibel link budget at 1300 nanometers. The HIPER ring structure of the network can include more than 100 switches with a reconfiguration time of less than 0.3 seconds. The RSB20-0900MMM2SAABHH managed switch has a current consumption rating of 365 milliamps and a power output rating of 30.3 BTU per hour as heat. In addition to that, the unit also has an IP 20-rated protective housing.


The RSB20-0900MMM2SAABHH managed switch is made to be mounted on a DIN Rail and it supports the store-and-forward switching modes. Additionally, the RSB20-0900MMM2SAABHH managed switch comes without a cooling fan and it should not be exposed to excessive heat. The unit delivers fast Ethernet according to the IEEE 802.3 standards and it has compact dimensions. The dimensions (W x H x D) of the RSB20-0900MMM2SAABHH managed switch are 71 x 131 x 111 millimeters (2.8 x 5.1 x 4.3 inches). In addition to that, the device has a weight of 400 grams (0.88 pounds). The tolerable relative humidity levels in the location where the unit is installed are 10 to 95% without condensation. The storage and transportation temperature ranges should both be between -40 and 70 degrees Celsius (-40 and 158 degrees Fahrenheit).


Technical specifications


Managed Switches


2 x 100BASE-FX/MM-SC (Uplink 1) Ports, 1 x 100BASE-TX/MM-SC (Uplink 2) Port, 6 x Standard 10/100 BASE TX/RJ45 Ports

0 to 4000 meters

24 Volts DC (18 to 32 Volts DC)

365 milliamps

30.3 BTU per hour

IP 20

400 grams (0.88 pounds)

71 x 131 x 111 millimeters (2.8 x 5.1 x 4.3 inches)

0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)

-40 to 70 degrees Celsius (-40 to 158 degrees Fahrenheit)


Common misspellings:

Common misspellings: