GigaFOIL Ethernet Filter - ETS-Lindgren
GigaFOIL Ethernet Filter
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Key Features
  • Insertion Loss: 100 dB from 10 kHz to 18 GHz
  • Fiber Optic Isolation Link (FOIL)Technology
  • Network Performance Unaffected; Will Not Increase Network Hop Counts

ETS-Lindgren's GigaFOIL Ethernet Filters utilize patented technology and are the only EMI/RFI filters for Ethernet on the market that offer 100 dB performance from 10 kHz to 18 GHz and higher. Housed in a single filter package, these filters are the most convenient and reliable solution for bringing Ethernet access to all varieties of shielded rooms and enclosures.

Standard signal line filters rely on capacitors and inductors to eliminate unwanted RF signals. However, these types of filters often eliminate the high frequencies that make up the sharp edges of high-speed digital square wave signals, thereby degrading the integrity of the signal. In order to avoid this side effect, it is necessary for standard signal line filters to have extended passbands that allow the higher frequencies to pass unimpeded.
Also, it is important to note that standard ethernet signal line filters do not differentiate between Ethernet signals and undesirable signals. They act like a hole in the shielded enclosure to all signals, good and bad, within the passband.

ETS-Lindgrens GigaFoil is designed for 10/100 Ethernet and Gigabit Ethernet networks. This filter automatically selects the fastest communication speed and can translate between 10/100 and Gigabit networks.

NOTE: Product will not support POE (Power Over Ethernet). May be used in conjunction with an POE Injector. Contact factory for details.

Product Features


GigaFOIL filters have an insertion loss of 100 dB from 10 kHz to 18 GHz. 

FOIL Technology

GigaFOIL Ethernet Filters utilize a fiber optic isolation link (FOIL) to maintain 100 dB shielding integrity.

Uninterrupted Network Performance

These filters convert only Ethernet packets, so there is no passband and no transmission of unwanted signals. These filters will not interfere with your network, increase hop counts or degrade network performance, which are common problems with standard signal line filters.

Physical Specifications

Filter Housing: 20 ga zinc plated cold rolled steel

Dimensions: 6.80” x 2.90” x 2.40” with 3” threaded penetration (1” NPS)

Operating Temperature: -40ºC - 70ºC (-40ºF - 158ºF) Continuous
-40ºC - 85ºC (-40ºF - 185ºF) <72 Hours

Electrical Specifications
Shielding Effectiveness: 100 dB from 10 kHz to 18 GHz
Insertion Loss: 100 dB from 10 kHz to 18 GHz
Conducted/Radiated Emissions: Exceeds MIL-STD-461 CE102
Exceeds MIL-STD-461 RE102
Exceeds FCC Part 15 A, B
Exceeds EN 55022 Class A, B
Auto MDI/MDI-X: Automatically Detects and Configures MDI or MDI-X
Auto Negotiation: Automatically Configure 10Mbps, 100Mbps or 1000Mbps
Flow Control: Supports 802.3x Flow Control for Full-duplex Mode and Back Pressure for Half-duplex Mode
Hot Pluggable: Can Be Plugged In/Out Without Affecting Filter or Other Links
Auto Link Restoration: Automatically Re-establishes Network Link After a Link Loss
Communication Standards:
  • IEEE 802.3 10Base-T (Ethernet)
  • IEEE 802.3u 100Base-T(Fast Ethernet)
  • IEEE 802.3ab 1000Base-T (Gigabit Ethernet)
Power Requirements: +5VDC max/1A min
GigaFoilv4 Power Supply Input: 100-240VAC; 50/60Hz
Safety File: E362686
Safety Standards: UL 60950-1 CSA C22.2 No. 60950-1
RoHS 2011/65/EU RoHS 2015/863
REACH 1907/2006 Article 33 POP 850/2004
EN 55024:2010 EN 55032:2012 + AC:2013
EN 61000-3-2:2014 EN 61000-3-3:2013
FCC 47 CFR Part 15B ICES-003 Issue 6

Product Configuration

Product Configuration:

All GigaFOIL filters come with their power supplies