ITU-T K.21
Products as per Basic standards

Combination Wave Lightning Surge Simulator CWS 600G
- Description:Lightning surge simulator CWS 600G is generated during thundering weathers or opening/closing of electrical switches 
 - Model:CWS 600G 
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CDN for Unshielded Unsymmetric Communication Line CDN 405AF8(2A)
- Description:The CDN 405AF8 is designed according to figure 9 of IEC/EN 61000-4-5:2017, it’s used for test unshielded unsymmetric communication line with transmission rate up to 100 Kbit/s 
 - Model:CDN 405AF8(2A) 
 - For more details