Product accessories. Accessories HUBER+SUHNER

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1 Product accessories Gas discharge tube (GDT) 134 Gas discharge tubes 135 SEMPER GDT units 136 Definitions 137 Selection of a suitable gas discharge tube Protective caps 138 Mounting wacher nut sets 138 Blanking plugs 140 Grounding cables 140 Grounding rings 141 Mounting brackets 142 Grounding kits 143 HUBER+SUHNER 133

2 Gas discharge tube (GDT) HUBER+SUHNER gas discharge tube protectors are normally delivered without gas tube some times called gas capsule. This allows the customer to select the appropriate GDT according to his application conditions, especially the maximum operation signal voltage amplitude. Exceptions: All protectors of the following series are supplied with properly installed gas discharge tube. Protectors with replaceable gas discharge tube Series fine protectors (for cube design types) Series high-power/low-im protectors Series high-power/low-im protectors with integrated high-pass filter and DC injection Protectors with fix installed gas discharge tube (no replacement possible) Series fine protectors (for barrel design types) Series miniature gas discharge tube protectors Series slim line gas discharge tube protectors Series data line protectors Specification Requirements Limits Insulation resistance 100 V (50 V for X48) Ω Glow voltage 10 ma 70 V Arc voltage >1 A 10 V Glow-arc transition current < 0.5 A Capacitance 1 MHz <1 pf typ. Impulse discharge current Alternating discharge current Operating temperature 30 ka, 8/20 µs 20 ka, 8/20 µs 8 ka, 10/350 µs 500 A, 10/1000 µs 100 A, 10/1000 or 10/700 µs 65 A rms, 11 cycles 10 A rms, 1 s 1 operation minimum >10 operations 1 operation minimum >400 operations >1000 operations 1 operation minimum > 10 operations -40 to +85 C -55 to +125 C GDT only Notes: Designed for operations exceeding 25 years GDT specification acc. international standard ITU-L K HUBER+SUHNER

3 Gas discharge tubes U Zstat U Zdyn max. I S 8/20 µs I SG 8/20 µs U ARC Dim. (V) (V) (ka) (ka) (V) ±15 % x ±20 % x ±15 % x ±15 % x ±15 % x8 Suitable for the following installed GDT holders: Gas discharge tubes together with capsule holder U Zstat U Zdyn max. I S 8/20 µs I SG 8/20 µs U ARC Dim. (V) (V) (ka) (ka) (V) ± 15 % * ± 20 % * ± 15 % * ± 15 % * ± 15 % * * 6x8 mm gas discharge tube same as of the tabel above together with holder with groove Suitable for the following installed GDT holders: HUBER+SUHNER 135

4 SEMPER GDT units for retrofit and replacement for series 3401 and 3402 U Zstat U Zdyn max. I S 8/20 µs I SG 8/20 µs U ARC (V) (V) (ka) (ka) (V) ± 15 % ± 20 % ± 15 % ± 15 % ± 15 % SEMPER GDT units for retrofit and replacement for series 3409 U Zstat U Zdyn max. I S 8/20 µs I SG 8/20 µs U ARC Figure (V) (V) (ka) (ka) (V) ± 15 % Fig ± 20 % HUBER+SUHNER

5 Definitions U Zstat Static spark-over voltage voltage which ignites the GDT in the case of a voltage rise of less than 100 V/ms. (acc. ITU-T K.12) U Zdyn Dynamic spark-over voltage max. voltage which ignites the GDT in the case of a voltage rise of 1 kv/µs. (acc. ITU-T K.12) I S Impulse discharge current peak value of a defined current pulse which is allowed to be applied at least ten times at intervals of 30 seconds without causing any significant changes of the spark-over voltage specification. Values are given for current pulse shape definitions of 8/20 µs (rise time/half-value period). I SG Maximum pulse current peak value of a defined single current pulse which can be conducted to ground once. For pulse shape refer to I S. U B Glow discharge voltage residual voltage across the GDT capsule when the discharge current operates the GDT in the glow state, typically at 10 ma. U ARC Arc voltage increasing current drives the GDT capsule into the arc state. The resulting voltage across the GDT is the arc voltage. Selection of a suitable gas discharge tube According to RF power transmission static spark-over voltage 1500 V* 1200 V* 900 V* 600 V 470 V 350 V 230 V static spark-over voltage 1500 V* 1200 V* 900 V* 600 V 470 V 350 V 230 V 90V 90V Diagrams of permissible RF power (CW or PEP) for 50 Ω and 75 Ω systems * non standard values. A calculation method for VSWR = 1 is explained in section 4, «How to select the right product», page 148. For maintenance requirements please refer to page 156. HUBER+SUHNER 137

6 Protective Caps Suitable for connector interface Dimensions (mm/in) A B C L 62_BNC * BNC (f) 17.0/ / / / _TNC-0-0-1* TNC (f) 17.0/ / / / _N-0-0-9* N (f) 21.0/ / / / _7/ */** 7/16 (f) 34.0/ / / /4.72 * Waterproof in connected condition ** Black plastic-coated steel cable Mounting screw sets Sets of stainless steel for screw mounting of protectors composed of: Screw Nut Tooth washer Thread size Screw length Wall thickness max M6 20 mm/0.79 in 4 mm/0.16 in M8 20 mm/0.79 in 4 mm/0.16 in M8 30 mm/1.18 in 14 mm/0.55 in M8 40 mm/1.57 in 24 mm/0.94 in * M8 30 mm/1.18 in 12 mm/0.47 in. * with additional washer recommended for protectors made of aluminium 138 HUBER+SUHNER

7 Mounting washer nut sets Standard sets without O-ring composed of: Washer V-washer (soft copper) Nut according to protector design and original delivery Suitable for protectors with mounting hole (MH dimensions refer to page 34 35) MH12, MH24, MH50, MH71, MH119 (nut thickness 4.75 mm / 3/16") MH25, MH MH72, MH74, MH MH80, MH MH69 Special sets composed of: Washer V-washer (soft copper) Nut With O-ring according to protector design and original delivery Suitable for protectors with mounting hole (MH dimensions refer to page 34 35) MH80, MH MH72, MH MH12, MH24, MH50, MH71 (nut thickness 3.30 mm / 1/8") MH12, MH24, MH50, MH71 (nut thickness 4.75 mm / 3/16") HUBER+SUHNER 139

8 Blanking plugs Blanking plugs can be used to seal bulkheads or panels, where optional lightning EMP protectors are not yet installed. The included soft-copper washer provides both water/dust protection and excellent RF shielding. Suitable for mounting hole Thread length (MH dimensions refer to page MH12, MH24, MH50, MH mm/0.453 in MH mm/0.929 in MH mm/0.929 in MH12, MH mm/0.882 in 140 HUBER+SUHNER

9 Grounding rings cable terminals for HUBER+SUHNER lightning EMP protectors with N and TNC interface To be applied directly on the bulkhead fixation thread of the protector, if it is not possible to provide a proper bonding/grounding via bulkhead. Installation outside of the protected area recommended. Suitable for mounting hole or Mounting hole screw diameter * < 17 mm/ in MH12, MH24, MH50, MH71, MH * mm/ in MH25, MH * screw 6 mm/ in (1/4 ) * screw 8 mm/ in * Recommended grounding wire size AWG 6 (16 mm 2 ) Grounding cables Customized grounding cables made from grounding wire AWG 6 and fitted with cable terminals are available on request. HUBER+SUHNER 141

10 Mounting brackets Brackets for bulkhead mounting of protectors Right angle design made from # 8 gauge (3.3 to 4.2 mm) copper sheet Each face features 4 wall mounting holes of size 6.7 mm/0.265 in diameter Dimensions: large hole face: 76x76 mm (3.00x3.00 in) small hole face: 50x76 mm (2.00x3.00 in) Suitable for protectors with mounting hole Figure face 1 face MH 69 MH 12, 24, 50, 71, 119 Fig MH 80, 118 MH 25, 70 Fig MH110 Fig * MH12, MH24, MH50, MH71, MH119 Fig * MH25, MH50, MH70, MH170 Fig. 5 * Material: aluminium Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig HUBER+SUHNER

11 Grounding kits for coaxial cables HUBER+SUHNER series 9076 grounding kits enable reliable grounding of today s usual corrugated copper tube and RG cables for radio transmitter antenna installations. Features Quick and easy installation No loose piece parts Low contact transition resistance (1 mω max.) Grounding cable AWG6 (16 mm2) Current handling capability 100 ka 8/20 µs, 25 ka 10/350 µs Waterproof IP67 Corrosion resistant Material data Component part Metal mounting parts contact part Gasket Material stainless steel copper EPDM Grounding kit N-style Straight grounding cable connection Right angle to corrugated copper tube cable For cable size Sucofeed,Andrew,Nokia,Kabelmetal, RFS,Eupen,etc. A B C Stripping length Grounding screws Weight (g) Cable diameter N014 1/4, RG213/214* M N038 3/ M N013 1/2 highflex M N012 1/ M N078 7/8 / 7/8" highflex M N / M N / M * Including 3/8" highflex HUBER+SUHNER 143

12 Grounding kit P-style Parallel grounding cable connection Alligned to corrugated copper tube cable For cable size Sucofeed,Andrew,Nokia,Kabel metal,rfs,eupen,etc. "A" B C Stripping length Grounding screws Weight (g) Cable diameter P014 1/4, RG213/214* M P038 3/ M P013 1/2 highflex M P012 1/ M P078 7/8 / 7/8 highflex M P / M P / M * Including 3/8" highflex Stripping dimensions stripping length Concerning the necessary cable jacket length which has to be removed, refer the tables above, column «stripping length». Select according to type number. The mounting instruction is shipped with every kit. It can also be obtained as download from our homepage (LP accessories) or the catalogue CD-ROM. 144 HUBER+SUHNER

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