Connector Systems

In advanced TCSPC systems external wiring is reduced to a minimum. Nevertheless finding the right cables, connectors and adapters can be a nightmare. The most common connections systems currently used are BNC, SMA, SMB, MCX, and LEMO connectors. The connectors are shown in Fig. 7.46. 

Both BNC and SMA eonneetors give reliable eonneetions. If they are used to eonneet PMTs to preamplifiers, routers or TCSPC inputs, there is negligible danger of damaging the eleetronies by eable diseharges (see Fig. 7.58, page 316). 

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R 18] [A 13] The data transmission of the signals will be executed by an electronic bus consisting of standardized elements as shown in Figure 4.80. The aperture in the center of the plate is reserved for the electrical connection. This connector system allows horizontal connection from the beginning to the end of the complete... 

Type of protection EEx e II T Cable connector system for heating units Type of... 

The missing standard curve for all sensors has not been established in the market yet, but is not a real problem either. Several manufacturers have established internal or house standard curves. Standard packages have been established within the manufacturers as well, but different connector systems are still an obstacle to standardization. 

A coaxial connector system, used for high-bandwidth connections in electronics. 

A wide range of attenuators is available for the commonly used SMA and BNC connector systems. Power splitters are available for splitting a signal into 2, 3 or 4 outputs. The signal amplitude at the outputs is 1/2, 1/3 and 1/4 of the input amplitude, respectively. Unused outputs of a power splitter must be terminated by 50 resistors. Attenuators and power splitters of satisfactory bandwidth can be made by soldering small 0805-size surface-mount resistors directly between the pins of SMA connectors. 

SAE/USCAR-2 Performance Specification for Automotive Electrical Connector Systems, Revision 4, United States Council for Automotive Research, 2003. 

Syndiotactic polystyrene (sPS) is a relatively new material discovery in semicrystalline pol5nners with a high melting point and rapid crystallization rate, which makes it possible to injection mold the material. The stereospecific polymerization was made possible by the combination of a transition metal catalyst with weakly coordinating cocatalysts, such as methylaluminoxane. The excellent balance of mechanical, electrical, solvent resistance, and dimensional stability properties combined with a relatively low price (based on styrene monomer) have made this material a competitor to existing engineering plastics. The products also have excellent heat performance and are finding application in antomotive (under the hood), electrical, and electronic connector systems. 

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