User's Manual

74 Document Number: 0100SM1401 Issue: 12-16
Hot Standby Full Duplex Radio - QH
Introduction
Welcome to the Quick Start Guide for the QH Hot Standby full duplex radio. This section provides additional installation
considerations, wiring diagrams and operational descriptions. This document should be read in conjunction with the QB full
duplex radio Quick Start Guide.
The QH is a redundant, hot standby, full duplex radio providing automatic changeover facilities.
The QH is designed as a modular solution, comprising 2 identical QB full duplex radios (standard) linked to a central monitoring
and changeover controller (Hot Standby Controller). Either QB may be taken out for maintenance without the need for system
down time. The automatic changeover can be triggered by the online out-of-tolerance (alarm) conditions based on either RF
and/or user data throughput parameters.
QB - Full Duplex Radio
QHHSC - Hot Standby
Controller
QB - Full Duplex Radio
Part F – Quick Reference Guide