Product overview This Middle Floor Single Connection LOP is a directfit elevator LOP box and HOP display replacement designed for use with compatible lifts. It combines a singleconnection landing operating panel interface with support for , bottom, and middle floor displays and the elevator door vane function. Key benefits Simple replacement and maintenance: Singleconnection design reduces wiring complexity and speeds up installation and servicing. Direct compatibility: Designed to match the electrical and mounting requirements of the listed model numbers for straightforward swapin replacement. Multiposition display support: Works with , bottom, and middle floor display configurations and integrates with door vane signaling where required. Reliable operation: Intended for consistent floor selection and display performance in operational elevator systems. Functional features Function: Landing operating panel box with hall operating panel display capability and support for door vane inputs. Connection type: Single connection arrangement optimized for middle floor installations. Supported display positions: , bottom, and middle floor display configurations supported. Use in HOP and LOP roles: Can be used as a hall operating panel display or as the landing operating panel box for designated floors. Compatibility and models Compatible with the following model references: HAA26800EA1, HAA23500K4, HAA23500K3, HAA23500K2, HAA23500K1, HAA23500L1. Compatible for use with OTIS lift systems where these model references apply. Practical applications Replacement part for a damaged middlefloor LOP during routine elevator . Retrofit projects where a singleconnection LOP simplifies system updates for middle floor displays. Spare part inventory for building maintenance teams servicing lifts compatible with the listed models. What to check before ordering Verify the elevator system uses one of the listed model references. Confirm mounting and connector orientation on site to ensure a directfit replacement. Ensure compatibility with existing door vane wiring and display configuration prior to installation. This product description reflects the listed model references and intended functions for LOP/HOP display and door vane integration in compatible elevator systems.