This high-speed differential hard metric connector system enables data rates of >25 Gbit/s and claims to be the first connector system that meets the requirements for 100G ATCA technology.
The data rates and the improved transmission behaviour are mainly based on the reduced size of the signal termination, designed for vias with a diameter of only 0.30mm.
The drilling hole diameter for the shielding contacts is specified at 0.46mm. According to the company the fact that the reduction of the vias leads to an improved crosstalk behavior was the motivation to the further miniaturisation of the press-fit zone.
The communication technology shows an ongoing trend towards increasing data rates and higher bandwidths. This means there is a need for 100GbE (gigabit Ethernet) data transmission. Typical applications are the next generation of internet backbones, data centers or cloud computing.
ERmet ZDpro connectors fulfill the requirements and challenges of the interface between backplane and daughter cards in suchhigh speed systems, claims the company. The new product is based on the mechanical design of its ERmet ZD and ERmet ZDplus, with the same dimensions.
ERmet ZDpro connectors are backwards mating compatible to ERmet ZD and ZDplus connectors. This means that existing backplane designs do not need layout changes on the backplane side if customers want to upgrade their daughter cards in the first step before upgrading the whole system, although the layout on the daughter cards has to be modified, if ERmet ZDpro receptacles are used.
To benefit from the maximum performance of the ERmet ZDpro the company recommends backdrilling. Decreasing via stub length and the related “stub effect“ by backdrilling significantly reduces the reflections and the overall bit error rate of the connection.
The first products of the ERmet ZDpro family are the four-pair right-angle female connector and the related straight male connector with press-fit termination. Both will be available from September 2015.
The connectors provide 40 signal pairs. The male connectors are available with different contact lengths (3.8mm or 5.3mm). While the standard variants with 3.8mm contacts offer an optimised impedance behaviour the male connectors with 5.3mm contact lengths provide a 1.5mm higher wipe length of 2.9mm.
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