Coaxial Protective Adapter for Antenna Connections COAXTRAB Ban ees CN-LAMBDA/4-2.0... with N-connectors protects the antenna connections of radio plants for narrow-band signals against surge voltages. By using the A/4 technology, a very good protection level is attained. These ideal voltage limiting properties are achieved with frequency dependent short-circuiting, ensuring that transient surge voltages are kept away from the device. The useful signal is not impaired by this technology. The arrester has a frequency of 2 GHz + 15% making it ideal for protecting mobile phones, cordiess phones and satellite location systems and reduces the frequency of system failure in storms, for example. CN-LAMBDA/4 has an energy absorbing capacity of 20 kA (8/20)us thus also accounting for the high danger potential for exposed antenna systems. The adapter can either be connected directly in the antenna line or installed at the terminal device without an extra adapter cable. The CN-UB/MP assembly board can be used for installing the protective device in the switch cabinet. An M3 clamping screw is provided on the arrester housing for the connection of the equipotential bonding to the cable screen. C-UFB-PA is available as preassembled equipotential lead. The equipotential bonding/ground connection is to be made along the shortest possible route and the conductor cut to the required length. 124 PHOENIX CONTACT CN-LAMBDA/4-2.0BB Protective adapters with N-connector connection 0 | 4/4-branch line \ Description Connection Type Order No. PKL COAXTRAB, protective adapter for antenna connections socket-socket CN-LAMBDA/4-2.0BB 28 18 863 1 plug-socket CN-LAMBDA/4-2.0SB 28 18 876 1 Equipotential lead, Supply length: 1.5 m, C-UFB-PA 27 62 36 2 10 Conductor cross section 1.5 mm?, with cable lug CN-UB assembly board CN-UB/MP 28 18135 Technical data Quality level in acc. with IEC 61 644-1 (draft August 1998) Ce, C3, D1 Nom. discharge surge current i,,, (8/20): 20 kA Output voltage limitation at 1 kV/us: asymm. (4) <10V Residual voltage at i,.: <20V Input attenuation a in a 50 Q system: Standing wave ratio (VSWR) in a 50 Q system: Perm. HF power Ppa, with VSWR=1.2/1.0 in a 50 Q system: Connection: Temperature range: < 0.3 dB from 1.7 - 2,3 GHz < 1.2 from 1.7 - 2.3 GHz < 400 W/s 500 W (2 GHz) N Connector 26 C to + 80 C