Dual Filtered Interface: RJ-45 Ethernet and USB 2 — JRE LAN-USB 2
Combined 10/100/1000 Ethernet and USB 2.0 filtered interface with independent paths, PoE pass-through, and jumper cables included.
JRE LAN-USB 2 specifications
- Outside dimensions
- 3.2" H x 3.2" W x 0.8" D (80 x 80 x 20 mm)
- Isolation
- Over 80 dB attenuation above 1 GHz; > 70 dB above 700 MHz; > 80 dB from 1 GHz through 6 GHz (data lines); > 80 dB from 400 MHz through 6 GHz (power lines)
- LAN Filter
- RJ-45 Female jacks
- USB Filter
- USB 2.0 Type A Female connectors
- Filtering
- All lines filtered
- Power capability
- Up to 60 VDC at 250 mA, 1.5 ohms max DC resistance
- Data Line Balanced Impedance
- 100 Ohms typical
- Insertion Loss @ 10 MHz
- 0.1 dB
- Insertion Loss @ 150 MHz
- 1.2 dB
- Insertion Loss @ 250 MHz
- 1.5 dB
- Insertion Loss @ 350 MHz
- 2.0 dB
- Insertion Loss @ 480 MHz
- 3.0 dB
- Insertion Loss @ 700 MHz
- > 70 dB
- Insertion Loss @ 800 MHz to 6 GHz
- > 80 dB
- Data rate
- 10/100/1000 Ethernet; USB 2.0 up to 480 Mbps
JRE LAN-USB 2 overview
If the DUT needs standard Ethernet and USB 2.0 together, the JRE LAN-USB 2 keeps both crossings in one plate position. I use the combined housing to save space while keeping the two paths independent.
- One 10/100/1000 Ethernet path plus one USB 2.0 Type-A path
- Passes signals below 480 MHz while rejecting interference above 700 MHz
- Ethernet section filters all eight RJ-45 lines and supports PoE pass-through
- USB section handles USB 1.1 and 2.0 data at up to 480 Mbps
- Greater than 80 dB rejection from 1 GHz through 6 GHz on USB data lines
- Greater than 80 dB rejection from 400 MHz through 6 GHz on USB power lines
- USB Type-A and RJ-45 jumper cables included; interface priced at $770.00
- Housing measures 3.2" H x 3.2" W x 0.8" D (80 x 80 x 20 mm)
This pairing is the economical fit when both links run at these established speed tiers. I would separate the LAN-1 and USB 2-1 interfaces when the connections belong in different plate locations. Choose the LAN-USB 3 for SuperSpeed USB, or a LAN10G combination when the Ethernet side is 10GBASE-T.
Which USB filter do I need? The USB 2-1 is a low-pass filter, the right pick at USB 2.0 speeds. The USB 3-1 uses signal phasing for USB 3 SuperSpeed. The USB C-1 puts that same architecture on a USB-C connector. This LAN-USB 2 pairs the USB 2.0 path with standard Ethernet.
Go deeper
Used in: High-Speed Data
- USB 3 and USB-C Special Considerations Why high-speed USB drops to 2.0 through an RF filter, what speeds to expect at 5/10/20/40 Gbps, and when an active cable is required for the test setup.
- Understanding data signals through filtered I/O The three filtering approaches — capacitive, low-pass, signal-phasing — and when each one applies.
- The effect of adding multiple I/O filters The weakest-link principle and the 3 dB-per-doubling rule for your system isolation budget.
- Interface & connector guide Match every connector and capacitance value to your signal type on the removable I/O plate.
I/O Interfaces nearest the JRE LAN-USB 2
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