B&R X20cHB1881 Hub expansion module

POWERLINK is a standard protocol for Fast Ethernet equipped with hard real-time

characteristics. Systems with redundant cabling can be implemented easily using

POWERLINK. Unlike ring redundancy, cable redundancy does not require cable

looping, which can sometimes be problematic. This allows the creation of all types

of tree structures. When using a device with the link selector function, data is always

transferred via the highest quality network lines. The link selector function is integrated

in the bus controller.

POWERLINK bus controllers X20BC8083 and X20BC8084 (starting with revision D0) and standalone hub

X20HB8880 are equipped with a modular hub extension. 1 or 2 additional slots are available depending on

the bus base. The X20HB1881 hub expansion module can be operated in these slots. It is important to note

that the hardware revision of the X20BC8083 and X20HB8880 must be ≥F0.

The hub expansion module is a 1x hub. The Ethernet connection is made using 62.5/125 μm or 50/125 µm

fiber optic multimode cable with a duplex LC connection. The module and network status is indicated using

LEDs.

• Hub expansion module

• 1x hub 100 BASE-FX

• Fiber optic multimode cable

• Range up to 2 km

• Hot-swap-capable

These modules are even suitable for use in adverse atmospheric conditions.

The coating on the electronics module protects the components and circuit

board from the effects of condensation and corrosive gases. The effectiveness

of protection against condensation is checked using the test specified in BMW

GS 95011-4. and protection against corrosive gases using the 4-part corrosive

gas tests specified in EN 60068-2-60. test method 4. The tests are completed

both in the company testing lab, which is accredited in accordance with EN

ISO/IEC 17025:2007. and at certified external testing facilities.

There, the products undergo further testing to check their durability – even

beyond standard requirements.