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B ASYX SC E
U
B
E
#
1
U
B
E
#
2
U
B
E
#
3
U
B
E
#
4
VAV 1-1
VAV 1-2
VVR 1-3
VVR 2-1
VVR 2-2
VVR 2-3
VAV 3-1
VVR 3-2
VAV 3-3
VVR 4-1
VAV 4-2
VVR 4-3
BASYX SCM SUPERVISOR
BASYX UBE EXPANDERS
BASYX VAV/VVR CONTROLLERS
UP TO 32 TOTAL
CHANNEL 1 VAV/VVR
CONTROLLERS
UP TO 32 TOTAL UBE CONTROLLERS
UP TO 32 TOTAL
CHANNEL 2 VAV/VVR
CONTROLLERS
UP TO 32 TOTAL
CHANNEL 3 VAV/VVR
CONTROLLERS
UP TO 32 TOTAL
CHANNEL 4 VAV/VVR
CONTROLLERS
MAIN RS485 COMMUNICATIONS BUS
CHANNEL RS485 COMMUNICATIONS BUS
COMPLEX COMMUNICATIONS BUS WITH EXPANDER MODULES
Figure 9: BASYX Typical Communications Loop Configurations
Communications loops may contain any mixture of BASYX controllers. Each controller must have a unique address
setting for proper operation.
Smaller systems may not require the BASYX SCM Supervisor or the UBE Unitary Bus Expanders. A Single loop
containing a minimum of (1) PSC and up to 31 additional controllers may be used.
