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Honeywell commercial programmable t7350 Manuel D’Utilisation

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T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
11
63-4368
Refer to the Light Commercial Building Solution System 
Communication Guide form 71-3123 and the E-Bus Wiring 
Guidelines, form 74-2865 for a complete description of 
network topology rules. Prepare Wiring Diagrams, for wiring 
details. Plan to configure each controller. Refer to the Excel 
L
ON
S
PEC
™ User Guide, form 74-2937, to configure the 
T7350H, XL15 and XL10 Controllers.
Step 1. Plan the System
Plan the use of the T7350H Thermostat according to the job 
requirements. Determine the location and functionality of each 
device. Verify the sales estimate for the number of other 
controllers and devices required. Check the number and type 
of other required accessories. When planning the system 
layout, consider potential expansion possibilities for future 
growth. Planning is very important if HVAC systems and 
controllers are to be added in future projects.
Fig. 4. Connecting personal computer to LonWorks® bus.
Step 2. Determine Required Network Devices
A maximum of 60 nodes can communicate on a single 
L
ON
W
ORKS®
 Bus segment. Each L
ON
W
ORKS®
 Bus device 
comprises one node. If more than 60 nodes are needed, a 
Q7751A Router or Q7740 Repeater is necessary. A router or 
repeater allows up to 120 controller nodes per network, 
divided between two L
ON
W
ORKS®
 Bus segments. Please note 
that routers are not supported by the LCBS L
ON
S
PEC
™ 
system configuration tool. Refer to the Light Commercial 
Building Solution System Communication Guide form 71-3123 
for LCBS details. Refer to the E-Bus Wiring Guidelines, form 
74-2865, for a complete description of network topology rules 
and maximum wire lengths. A 209541B Termination Module 
may be required. Refer to the Excel 10 FTT Termination 
Module Installation Instructions form, 95-7554. 
Step 3. Layout Communications and Power 
Wiring: 
L
ON
W
ORKS®
 Bus Layout
The communications L
ON
W
ORKS®
 Bus, is a 78-kilobit network 
that uses transformer isolation and differential Manchester 
encoding. The Free Topology Transceiver (FTT) L
ON
W
ORKS®
 
communications Bus supports a polarity insensitive, free 
topology wiring scheme, refer to the E-Bus Wiring Guidelines 
form, 74-2865, for a complete description of L
ON
W
ORKS®
 
network topology rules. Fig. 5 shows T7350H devices 
connected in a typical free topology L
ON
W
ORKS®
 network.
Fig. 5. Typical topology for T7350 devices in L
ON
W
ORKS®
 network.
M22492
NOTEBOOK PC
RS-232
SERIAL 
PORT
Q7760
SLTA
CABLE
PART 
NO. 205979
SHIELDED 
INTERFACE 
CABLE
T7350H
LonWorks
BUS PORT
NOTEBOOK PC
RS-232
SLTA
SLTA
SLTA
RS-232
RS-232
T7350H
MODEM
MODEM
MODEM
M22493 
LonWorks    BUS
LonWorks    BUS
LonWorks    BUS
T7770 
WITH NO 
LonWorks 
BUS ACCESS
T7770
JACK FOR OPERATOR TERMINAL
LonWorks    BUS
I/O CONNECTIONS
T7350H
T7350H
T7350H
T7350H
T7350H
T7350H
T7350H
T7350H