47102 ZP3AB-SCB-R Serial control bus interface boardThe ZP3AB SCB R provides a remote interface on the system control bus wiring enabling repeat indication and system control, at locations remote from the main panel position. The interface can be positioned anywhere on the system bus wiring (which it shares with remote display units (RDUs). Driven from within the main control panel by an optional SCB D driver board, a combination of up to 32 or 64 RDUs and SCB Rs can be controlled dependant upon the