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14.6.2 Surge CDN for unsymmetric datalines CDN 117
Teseq’s CDN 117 coupling-decoupling network
enables convenient testing
with surge pulses of 1.2/50 μs on data, signal or peripheral lines, as specified in
many product standards. The test method, severity levels, permissible reaction
of the EUT and specification of the coupling networks are included in IEC/EN
61000-4-5.
All coupling methods described in IEC/EN 61000-4-5
for unshielded
unsymmetrical line pairs can be performed both in differential- and common
mode coupling (line-to line and line-to-ground).
The user can manually select coupling modes
by connecting the surge
generator’s output to the appropriate input of the CDN 117.
Several CDN 117s can be arranged in parallel
for applications in which
more than two conductors must be decoupled.
The CDN 117 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.
