'In the light of the group's revised view of the extended market downturn, it is no longer believed that the refinancing proposal provides it with an appropriate capital structure,' the company said. 'Accordingly, Marconi has decided that it is unable to enter into the proposed new bank facility. The bank co-ordinators have indicated that the banks reserve all their rights under the existing facilities.' Combined with an admission that overall demand for its fibre optic and telecoms equipment has continued to deteriorate, analysts said prospects for the group were bleak.