Description
Overview
Teseq’s CDN 118 coupling-decoupling network is designed for convenient surge testing of telecommunications equipment to IEC/EN 61000-4-5, which specifies a 1.2/50 μs or a 10/700 μs pulse. It includes the special decoupling network and coupling elements that are required for these tests. The design of the CDN is given in IEC 61000-4-5 Ed.3 Figure 10 and A.4. It can be easily interfaced with the EUT and is designed as a bench top unit. It can be used with Teseq’s NSG series or any industry standard surge generator with the appropriate connector adapter.
The user can manually select coupling modes by connecting the generator’s output to the appropriate input. All coupling methods described in the standard can be configured with the CDN 118. Two CDN 118 main units can be arranged in parallel for testing eight line applications (low speed transmission only). It requires to combine CDN 118-T4 with the option CDN 118-EXT-1..
Specifications
Technical specifications |
CDN 118 |
Max operating voltage | AC 250 V, DC 250 V |
Max operating current | 0.5 A |
Ohmic resistance per path | 3 Ω |
Decoupling chokes 1 kHz | 20 mH nominal |
Transmission 3 dB BW | 250 kHz |
Symmetrical stray inductance | approx. 50 µH (pair, @1 kHz) |
Connectors | 4 mm safety banana |
Pulse | 1.2/50 μs and 10/700 μs pulse |
Max. pulse voltage | 6.6 kV line to ground, 3 kV line to line |
Min. generator impedance | 2 Ω for 1.2/50 μs, 15 Ω for 10/700 μs |
Series resistor | in relation to the selected pulse coupling network |
Max. pulse frequency | 3 per minute |
Connectors | Fischer 103 |
Size (W x H x D) in mm | 335 x 232 x 180 |
Weight | approx. 19.5 kg |