Honeywell EXCEL5000 Q7751A - Manual

®U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • All Rights Reserved
74- 2952- 1
DESCRIPTION
The Q7751A Router doubles the bus length and the number
of usable nodes on a L
ON W ORKS
®
(previously called E-Bus)
network. The Q7751A2010 has an FTT-10 transceiver. It is
used on L
ON W ORKS 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.
FEATURES
• Physical isolation between two channels.
• Supports installation of larger networks.
• Uses L ON W ORKS 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
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.
Q7751A Router