Cable Termination; Singly Terminated Network Segment; Fig. 8. Wiring Layout For One Doubly Terminated Daisy-Chain; Fig. 9. Singly Terminated Lonworks Bus Termination Module - Honeywell Q7300H System Engineering

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES
T7770
EXCEL 10
CVAHU
BUILDING MANAGER
1 4 8 12 16
EXCEL 15
W7760
17 23 30 31 37 44
EXCEL 10
RI0
T7770
Fig. 8. Wiring layout for one doubly terminated daisy-chain LonWorks

Cable Termination

The FTT network segment requires termination for proper
data transmission performance. Use a 209541B
Termination Module to connect two of the three termination
module wires to the LonWorks

Singly Terminated Network Segment

In a singly terminated topology segment, only one
termination is required and can be placed anywhere on the
segment. Singly terminated segments use the yellow and
brown wires. Mount the termination modules on the
appropriate terminals as shown in Fig. 9.
63-4365
EXCEL 10
CVAHU
T7300
T7300
T7300
T7300
LonWorks ®
BUS
EXCEL 10 EXCEL 10
CVAHU RI0
T7770
T7770
Bus terminals.
EXCEL 10 EXCEL 10
RI0 RI0
209541B TERMINATION
MODULES (AT ENDS OF
LonWorks ® BUS
T7300
DAISY-CHAIN)
T7300
T7300
T7300
EXCEL 10
RI0
T7770
JACK FOR
OPERATOR
TERMINAL
EB EB
YELLOW
BROWN
ORANGE
Fig. 9. Singly terminated LonWorks
14
LonWorks ® BUS
EXCEL 10
RI0
T7770
WITH NO
LonWorks ®
BUS ACCESS
EXCEL 10
RI0
T7770
WITH NO
LonWorks ®
BUS ACCESS
LonWorks ® BUS
I/O CONNECTIONS
M16085B
segment.
C1 C2 C3 C4 C5
X T T AS AS
PART NO. 209541B
TERMINATION MODULE
M16202
Bus termination
module.