Broadcom fibre optic transceivers

The ABCU-57Z family of electrical transceivers from Broadcom offers full-duplex throughput of 1000 Mbps by transporting data over shielded and unshielded twisted pair category 5 cable with 5-level PAM (Pulse Amplitude Modulation) signals.
The Broadcom 1000BASE-T module takes signals from both the twisted pair category 5 cable and the SerDes interface.
Pin count overhead between the MAC and the PHY is minimised, and Gigabit Ethernet operation is achieved with maximum space savings.
Broadcom QSFP+ SR4 transceivers (AFBR-79EQDZ, AFBR-79EQPZ) are compliant to the IEEE 802.3ba 40GBASE-SR4 standard and are used for dedicated 40G Ethernet point-to-point links.

The iSR4 optical modules (AFBR-79EIDZ, AFBR-79EIPZ) support both 40G Ethernet as well as the optical interoperability with the 10G Ethernet modules. 
The rapid growth of data centres has driven many IT managers to ask for a solution that will connect equipment over their multimode structured cabling with links which are longer than what was written into the Ethernet standard.

Broadcom eSR4 modules (AFBR-79EEPZ) further extend the link distance of the iSR4 modules to 300 meters using OM3 MMF and 400 meters using OM4 MMF.  This allows a seamless transitioning for the data center operators to migrate from 10G Ethernet to 40G Ethernet without any concern of shortage in link distance. 

Broadcom’s offered iSR4/eSR4 solutions also supports a three-fold increase in line card density at 50% of electrical power dissipation per 10G channel when compared with the 10G Ethernet multimode SFP+ transceivers.
Broadcom has also collaborated with the leading cable vendors to further extend the achievable link distance over MMF required in many large-scale data centre applications.