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PRODUCT DATA
65- 0227- 2
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
QS7800B Network Interface ControlBus™
Module for Multi-Dropping
7800 SERIES Relay Modules
APPLICATION
The QS7800B Network Interface ControlBus™ Module allows
remote monitoring and diagnostics of multi-dropped 7800
SERIES Relay Modules.
FEATURES
• Up to six ControlBus™ Modules per Network Interface
Unit. (Maximum of 222 multi-dropped subnetworks per
Q7700 Network Interface Unit).
• Up to 31 multi-dropped 7800 SERIES subnetworks per
QS7800B ControlBus™ Module without using an
RS-485 repeater.
• Up to 61 multi-dropped 7800 SERIES subnetworks per
QS7800B ControlBus™ Module using an RS-485
repeater.
• Local and remote annunciation of 7800 SERIES Relay
Module faults.
• Personal computer user interface.
• Microsoft® Windows™ based Combustion System
Manager® user interface.
• Modular construction.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Installation ........................................................................ 2
Ordering Information ........................................................ 2
Wiring ............................................................................... 3
Building a Multi-Drop Network .......................................... 6