BTB connectors are divided up into four mounting types:
BTB connectors are selected by considering the mounting method, pin pitch, number of the rows (aka number of the ways), pin length, stacker height etc.
http://www.we-online.de/web/de/intelligente_systeme/neu__skedd/startseite.php. 2015-08-26. http://www.we-online.de/web/de/intelligente_systeme/neu__skedd/startseite.php ↩
"RZ Series". www.airborn.com. Retrieved 2018-08-22. https://www.airborn.com/products/connectors/rz-series-home-page ↩