There is no direct replacement. However there is a workaround available. Telect had 23" to 19" panel adapters available that come in a variety of non full rack sizes, A combination of these could be used in order to replace the old panel adapters. The part numbers follow the scheme 02117-XX for EIA to EIA and EAI to WECO and 02117-XXF for WECO to WECO and WECO to EIA.