Cat6A cable is constructed with fluoropolymers that
support ANSI/TIA-568-C specifications for stability in
extreme conditions over long lengths and is available in
24 AWG or smaller 26 AWG to minimize size and weight.
For connectors, Cat6A cable can be terminated with
ARINC high-speed connectors. They can handle the
more stringent insertion loss, crosstalk, and other signal
degrading factors, as well as the increased bandwidth
return loss requirements that result from faster I/O. For
extreme environments, circular CeeLok FAS-T and MIL-
DTL-32546 qualified CeeLok FAS-X 10 GB Ethernet
connectors accommodate higher speeds and smaller spaces.
Figure 2: Cat 6a cable.
(Image Source: TE
Figure 3: CeeLok
(Image Source: TE
To provide higher speeds over longer distances, optical
fiber is gaining ground in backbone applications—
especially as 100G links ( 10, 10 Gbps fibers per Tx to Rx
link) become more prevalent. The metrics clearly show
the fiber-optics advantage:
• Speed and distance: A twisted pair cable can carry a
1 Gbps signal over a distance of 100 m, a multimode
fiber can transmit 10 Gbps up to 550 m, and a single-mode fiber, an order of magnitude farther.
• Weight: A generic Cat6A Ethernet cable weighs 45
lb per 1,000 ft, while a fiber-optic counterpart is 78
percent lighter, weighing just 10 lb.
• Noise immunity: Optical fibers are made of dielectric
materials; they neither emit nor receive EMI. Cable
shielding is not required.
As military avionics systems continue to push the
envelope with heavier data loads, an end-to-end fiber-optic solution is attractive. Optical fiber used to have a
reputation as being fragile and hard-to-use. That’s not true
now. Today’s optical fiber constructions resist crushing
and pinching during installation. No-epoxy/no-polish
connectors significantly speed up termination.
A relatively new component that can push heavy loads
through active optical fiber networks is the video transceiver.
While it’s clear that many advanced interconnect products
are available today, where are packaging and connectivity
headed in the future?
As far as packaging is concerned, previous ARINC
standards are being eclipsed by new standards, such
as ARINC 836A. The same smaller sizes and higher
density seen in consumer and industrial electronics
are now in play for avionics. Generic packaging for
aviation electronics will keep shrinking to accommodate
smaller boxes and significantly lower weights. As far as
connectivity is concerned, copper and fiber will continue
to coexist, each lending their specific advantages. ECN
Extremely low DCR ... and ultra-low AC losses
Optimized for high frequencies ... up to 5+ MHz
Superior current handling ... up to 44.0 Amps
Soft saturation ... to withstand high current spikes
Learn More coilcraft.com/XEL50xx Compact footprint: 5. 28 x 5.48 mm
XEL50xx Power Inductors for
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