This manual is an Installation Guide for the ACC/RTB-735R2/736R2, a rear transition board (RTB) providing access to I/O signals of PENT/CPCI-735R2/736R2 Family boards. It details the installation and removal procedures, connector pinouts, switch settings, and safety precautions. The guide is intended for users qualified in electronics or electrical engineering with a working understanding of PCI, CPCI, and telecommunications. It covers on-board connectors, CompactPCI connectors, front panel connectors, and provides troubleshooting and safety information.