Coupling Network | PCD 121 / 122 / 126A
IEC/EN 61000-4-5
IEC/EN 61000-4-12
ITU K.44
The PCDs 121, 122 and 126A are used for coupling of different impulses onto unshielded (a)symmetrical data and signal lines according IEC/EN or ITU standards (see technical data). Up to 4 lines can be tested simultaneously. To achieve maximum flexibility, only coupling elements are included in the PCDs.
Decoupling circuits that depend on the EUT to be tested, can be placed separately in the test setup. Manual coupling path switching for common mode (longitudinal, line to ground) and differential mode (transverse, line to line) tests. Default coupling elements are gas arrestors and breakdown avalanche diodes. The coupling elements can be easily selected. The direct coupling output allows the customer to use his own coupling elements. They are suitable for AXOS compact devices from Haefely and can be combined with the DEC decoupling networks.
- Impulse shape:
PCD 121: 1.2 / 50 μs - 8 / 20 μs (pulse shape only defined at the generator output)
PCD 122 (only on request)
PCD 126A:
- 1.2 / 50 μs - 8 / 20 μs (Z = 2 Ω)
- 100 kHz ring wave (Z = 12 Ω, 30 Ω , 200 Ω) - Impulse amplitude: max. 6.6 kV
- Various coupling elements depending on the device: gas arrestors, capacitors and Avalanche breakdown diode (see data sheet)
- Serial resistor:
PCD 121: 4 x 40 Ω, 4 x 80 Ω, 4 x 160 Ω
PCD 126A: 1 x 40 Ω - Voltage on EUT lines:
PCD 121: max. 72 VDC or 50 VAC, RMS (with gas arresters) | max. 144 VDC or 100 VAC, RMS (with ABDs)
PCD 126A: max. 375 VDC or 265 VAC, RMS (with capacitors) | max. 72 VDC or 50 VAC, RMS (with gas arresters and ABDs) - Signal bandwidth:
PCD 121: up to > 10 MHz (with gas arresters) up to > 1 MHz (with ABDs)
PCD 126A: up to > 1 kHz (with capacitors), up to > 1 MHz (with ABDs), up to > 10 MHz (with gas arresters) - Dimensions: 450 x 570 x 195 mm
- Safe and simple - All sockets are fitted with safety banana plugs to ensure maximum safety for the user.
- Robust and reliable - Careful selection of components ensures that the DECs will perform under the toughest test conditions.
- Report Generation – The unit controller can automatically generate test reports without a computer.