By Telecom Lead Team: Broadcom has unveiled four new
physical layer transceivers (PHYs) to its portfolio of 10 gigabit Ethernet
(GbE) and 40GbE high-speed Ethernet products for optical fiber
communications.
The new SFP+ physical layer transceivers (PHYs) include
dual, quad and octal-channel devices for data center and enterprise networks,
enabling the transition from 1GbE to 10GbE and 40GbE. Based on advanced 40nm
CMOS architecture, the new devices deliver 10 times more bandwidth than previous
generation 1GbE PHYs.
Data center, cloud and enterprise networks are
transitioning from 1GbE to 10GbE and 40GbE. Analysts predict overall 10GbE
ports to increase from 24 million in 2011 to 76 million in 2015. In addition,
40G port shipments are projected to grow from 36,000 in 2011 to 795,000 in
2015.
Broadcom’s SFP+ and QSFP+ PHYs are designed to address
the bandwidth and traffic demands being placed on the network, with greater
functionality, flexibility and performance for system managers.
All four devices feature Broadcom’s EDC technology,
enabling data transmission on a 10GbE or 40GbE serial interface. This feature
is ideal for applications requiring transmission over multimode fiber (MMF) at
distances up to 300m (LRM) using OM3 fiber and SFP+ copper twin-axial cable
(CR).
In addition to supporting long reach over multi-mode
fiber (LRM), the new PHYs handle short range (SR), long range (LR) and newer
extended range (ER and ZR) optical interfaces for a broad range of
high-bandwidth applications. The all-digital signal processing (DSP)
high-speed, front end, on-chip microcontroller provide the highest performance
and flexibility for line card designers.
Multi-rate capabilities allow IT managers to work with
1GbE, 10GbE or 40GbE systems for maximum flexibility. Integrated IEEE 1588 time
syncronization operating on a per-channel basis, provides an in-band scheme of
precisely-timed packets to traverse multiple systems for voice, video and
cellular base station applications. This feature also can be bypassed or
disabled for each channel independently.
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