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Pluggable
interfaces are small, hot-swappable, managed port interface modules that provide
physical layer (copper or fiber) signaling for data, voice, storage and video
transport networks.
Pluggables started with GBIC (Gigabit Interface Converter) modules, which
allowed Gigabit Ethernet devices to provide a generic, modular interface to
optical transceivers. This capability allowed optical transceivers of various
distances (10km or 80km for example) to be plugged into a switch-card slot
without changing the card. In the days before GBIC, Gigabit Ethernet switch
vendors provided a blade of, say, 8 ports of Gigabit to the customer, with all
the same type of optical interface (mostly multimode). When a customer needed a
few ports of single-mode optics, they had only two choices:
- Use a media converter, or
- Buy a separate card for each type of optical interface
Each of
these options is expensive and wastes resources. The GBIC solution provided a
mechanism of supplying a simple blade with GBIC slots, and allowing the customer
to choose the optics for each slot individually.
Fast forward by a few
years, and GBIC has been 'upgraded' to SFP (Small
Form Pluggable). SFP optical interfaces are less than ½ the size of GBIC
interfaces, and the usage (protocols and applications) has dramatically
expanded. Today, MRV Communications provides an astonishing variety of optical
and copper interfaces using GBIC and SFP technology, and a wide array of systems
to which these interfaces attach.
Read on to find out more about MRV's
Pluggables technology, solutions and products:
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