The EIB applies the same salary scale for men and women. Differences in basic salaries result from the mini-steps awarded in successive appraisals (so reflecting the number of years of service irrespective of gender).
See the EIB Staff Regulations: http://www.eib.org/attachments/general/eib_staff_regulations_2009_en.pdf; http://www.eib.org/about/jobs/compensation-and-benefits.htm