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Transceiver offers 100Mbit/s over plastic optical fibre

Posted: 01 Aug 2011     Print Version  Bookmark and Share

Keywords:Ethernet  transceiver  networking 

Avago Technologies Ltd unveils the AFBR-5972Z, a compact Ethernet transceiver that offers fast communication up to 100Mbit/s over plastic optical fibre (POF) targeted at harsh networking environments such as factory automation or power generation and distribution applications.

The device is designed using an Avago Versatile Link duplex connector that reduces board footprint. As such, the transceiver eliminates electromagnetic interference, crosstalk and electrical ground problems that are common with copper wire solutions while also providing easier, more flexible installation, the company said. The transceiver's AFBR-4526Z duplex connector is smaller and similar to electrical RJ-45 sockets and is compatible with existing simplex Versatile Link connectors. In addition, the device is more cost-efficient than comparable PROFINET industrial Ethernet standard connector solutions, Avago added. The device is designed for industrial applications and supports various Ethernet Fieldbus protocols. It operates in the -40°C–85°C extended industrial temperature range and is compatible with quasi-industry standard IEEE 802.3 100BASE-FX.

The AFBR-5972Z device's transmitter is based on a high-power, 650nm LED with an integrated driver that operates at 3.3V. The transmitter receives a LVPECL/LVDS electrical input and converts it into a modulated current that drives the LED. The LVPECL digital interface enables a direct connection to Ethernet PHY ICs. The high-bandwidth receiver contains a PIN photodiode that is packaged in an optical subassembly that couples the optical power efficiently from POF fibre to the receiving PIN. Additionally, the device includes Link lengths up to 50m POF (NA0.5) or 70m POF (NA0.3), is lead-free and RoHS-compliant and offers LVPECL signal detect output.

Samples and production quantities of the AFBR-5972Z fast Ethernet transceiver are available through Avago's direct sales channel and worldwide distribution partners. Avago provides a reference design for the implementation of the AFBR-5972Z transceiver and an application note.

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