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555021 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
LevelOne · COMPONENT
PRODUCT OVERVIEW

555021: CIRCUIT CARD ASSEMBLY.

LevelOne IES-1881 Industry Ethernet Switch provides 16 PoE ports of 10/100Base-TX plus 2 Combo ports of 1000Base-T Gigabit Ethernet and 1000Base-LX SM SC fiber to enable high speed network at mission-critical environment. With the 1U height rack-mountable size, this switch can be easily installed in the cabinet, plus the clearly visible status LEDs provide simple monitoring of port link activity. Resilient Ring Network Supports Ring topology network providing simple installation and ultra fast network recovery performance, less than 15ms.

Unlike much complex resilient topology, such as a redundant star, the Ring simplifies the network design and requires less cabling installation. In addition, fast network recovery time helps minimize system downtime. High Reliability All components are built to withstand harsh environment applications without compromise where humidity, temperature variation and even shock vibration are concerns, including Electric & U This part is cataloged in the U.S.

Government catalog under NSN 2910-01-019-4584, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
555021
NSN: 2910-01-019-4584
FSC: 2910 — Engine Fuel System Components, Nonaircraft
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
overall_diameter0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
general_characteristics_item_description7 HOLES EQUALLY SPACED, 0.005 IN. AND 0.006 IN. MAX DIA THRU ONE WALL IN
NSN2910-01-019-4584
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: LevelOne CIRCUIT CARD ASSEMBLY TITLE COMPONENT PN 555021 MFR LevelOne CIRCUIT CARD ASSEMBLY
KEY FEATURES
•
OVERALL DIAMETER: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 7 HOLES EQUALLY SPACED, 0.005 IN. AND 0.006 IN. MAX DIA THRU ONE WALL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
GENERAL CHARACTERISTICS ITEM DESCRIPTION7 HOLES EQUALLY SPACED, 0.005 IN. AND 0.006 IN. MAX DIA THRU ONE WALL IN
SUBSTITUTES & CROSS-REFERENCES 1
195321Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 555021?
555021 is a CIRCUIT CARD ASSEMBLY manufactured by LevelOne.
What parts can replace 555021?
There is 1 known substitute for 555021: 195321. Substitute compatibility should be verified for your specific system.
What is the NSN for 555021?
555021 is cataloged in the U.S. Government catalog under NSN 2910-01-019-4584. This indicates validated use in U.S. government and defense supply chains.
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