2 channel 1 Gbit/s Ethernet contactless coupler with DC/DC converter product photo Front View L
For a larger view click on the picture.

2 channel 1 Gbit/s Ethernet contactless coupler with DC/DC converter


RF characteristics

Channel count:

Ethernet 1000BASE characteristics

Number of 1000BASE-T Ethernet-Channels:
Ethernet channel:
1000BASE-T Ethernet-Channel | One contactless coupler for one channel
Supported Ethernet Standards:
10BASE-T (IEEE802.3 Clause 14)
100BASE-TX (IEEE802.3 Clause 25)
1000BASE-T (IEEE802.3 Clause 40)
Auto negotiation provided to select Ethernet-Standard and full/ half duplex mode automatically
Profinet Class:
Class A, Class B
Ethernet Frame Loss Ratio According to RFC2544:
≤ 1 x 10⁻⁹ ET1) ET3)

Contactless DC-power transmission characteristics

Number of DC-channels:
External power supply:
Power Supply has to be a SELV type acc. to IEC60950-1
The current must be externally limited to 5 A
Interface type DC-Input:
2 single wires at stationary part, AWG18 | Cable length: 550mm ± 50mm
Interface type DC-Output:
2 single wires at rotating part, AWG18 | Cable length: 550mm ± 50mm
Input voltage:
21.6 V to 28.8 V DC; 0 V is connected to Case Ground internally
Current consumption, typ./max.:
0.33 A / 0.5 A @ 24 V Supply Voltage (per data channel) | without external load
Output voltage:
24 V DC ±3% | potential free against Case Ground and data channels
Output current, continuous:
2.5 A (to external load) | Over full temperature range
Output voltage Ripple, max.:
80 mV
Efficiency, typ.:
85% @ full load (at external load)

Mechanical characteristics

Rotating speed, max.:
1,000.0 rpm
200 x 10⁶ revolutions
Maintenance period:
not required
300 000 h
Torque (room / min. temperature), max.:
0.2 Nm / 0.5 Nm @ start-up
0.2 Nm / 0.5 Nm @ rotation
Interface loads, max.:
no loads allowed
Case material / surface:
aluminum-alloy / painted in RAL 9005 jet black
IP protection level:
IP 64
IP protection level remark:
all interfaces connected with appropriate gaskets
Weight, approx.:
2.5 kg
adhesive label

Environmental conditions

Operating temperature:
-30 °C to +71 °C
Relative humidity, max.:
95% (condensation not allowed)
30 g / 11 ms half sine, 3 shocks in each direction of 3 orthogonal axes
20-50 Hz, PSD of 0,02 g²/Hz falling to 0,001 g²/Hz at 500 Hz in each of 3 orthogonal axes.
Duration: 15 min/axis.
Compliant to MIL-STD-810G
Storage ambient temperature:
-40 °C to +85 °C
Storage relative humidity, max.:
95% (condensation not allowed)

Further remarks

Contactless Data and Power Transmission Channels

This combination of contactless data and power channels offers improved lifetime without the need for maintenance. The contactless design provides a high increase in rotating speed in comparison to slip ring designs.
The data channels are realized by rotating capacitive couplers and the power channel is based on inductive technology.
An integrated auxiliary power channel supplies all rotating electronic devices.
ET1) Measured @ 1 Gbit/s with 64 byte frames at 99% channel utilization and 800 s measurement time (for 1000BASE-T)
ET2) Measured @ 100 Mbit/s with 64 byte frames at 99% channel utilization and 8000 s measurement time (for 100BASE-TX)
ET3) Corresponds to BER ≤ 1 x 10⁻¹²



Product data sheet – 636684C0004 – 636684-DS.pdf