DB25 POLIF FEM. -> RJ45

ACT Mountable Heavy Duty Adapter RJ-45 Female to 25 pole D-Sub Female

25-pin D-sub to RJ-12 / RJ-45 Modular Adapters

D-sub Connector to RJ-45 female Connector adapter in one housing. The wiring at the RJ-45 female side is fixed, but the wire-ends have crimp contacts, which could be placed in the desired position of the D-sub connector without any tools.
Housing has locking screws for firmly attaching the D-sub end.