Honeywell Network Router Q7751A User Manual

Q7751A Router  
FEATURES  
Physical isolation between two channels.  
Supports installation of larger networks.  
Uses LONWORKS network protocol.  
Two-piece design allows pre-wiring and cable testing  
prior to installation.  
Color-coded screw terminals and polarity-insensitive  
power and network connections minimize chance of  
incorrect wiring.  
Operates from 16-30 Vac or Vdc, allowing router to be  
powered from same source as sensors and actuators.  
Power and network wiring are looped through each  
base plate, providing undisrupted network continuity  
if replacing router.  
Two front panel jacks that access the twisted pair  
network without requiring disassembly.  
Front panel bar code including model, revision, and  
two removable Echelon® Neuron® chip ID stickers.  
SPECIFICATIONS  
DESCRIPTION  
The Q7751A Router is a two-piece design allowing prewiring  
and cable testing prior to installing the electronic component.  
The front panel includes a printed circuit board (PCB) with  
active electronics. The front panel also has a service switch,  
a power/wink LED, an activity LED, and two network  
connectors. Network and power are connected to screw  
terminals located on a type 2 base plate where the router is  
plugged. Wiring is never directly connected to a router.  
The Q7751A Router doubles the bus length and the number  
of usable nodes on a LONWORKS® (previously called E-Bus)  
network. The Q7751A2010 has an FTT-10 transceiver. It is  
used on LONWORKS networks with the Excel 10 Series 2000  
family of controllers. The Q7751A1012 has a TP-78  
transceiver. It is used on LonWorks networks with the Excel  
10 VAV1 Series 1000 controller.  
®U.S. Registered Trademark  
Copyright © 1999 Honeywell Inc. • All Rights Reserved  
74- 2952- 1  
 

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