OM 1239
8
www.DaikinApplied.com
BACnet communication module
Table 4: BACnet communication module connectors/
terminals
P4 – 1
P4
GND
P4 – 2
+ 5 VDC
P4 – 3
SPI SELECT (SPI Select To Communications Board)
P4 – 4
SPI CLK (Master Clock)
P4 – 5
SPI RCV (MOSI)
P4 – 6
SPI XMIT (MISO)
P4 – 7
SRDY OUT (SPI Ready To Baseboard)
P4 – 8
No Connection
P3 – 1
P3
Network
P3 – 2
Network Signal –
P3 – 3
Reference
P3 – 4
Not Used
l
on
W
orks
communication module
Table 5:
L
on
communication module connectors/terminals
CN_SPI – 1
CN_SPI GND
CN_SPI – 2
+ 5 VDC
CN_SPI – 3
SPI_SELECT1_0 (SPI Select To Communications-
Board)
CN_SPI – 4
SPI_CLK_0 (Master Clock)
CN_SPI – 5
SPI_RX_0 (MOSI)
CN_SPI – 6
SPI_TX_0 (MISO)
CN_SPI – 7
SREADY_0 (SPI Ready To Baseboard)
CN_SPI – 8
No Connection
TB1 – 1
TB1
Network Signal A
TB1 – 2
Network Signal B
TB1 – 3
Not Used
Figure 3: BACnet communication module connectors and
terminals
SPI From Base
Controller
Atmel ARM7 MCU W/ Polarsoft
BACnet
Protocol Stack
Power from Base
Controller
RS-485
Transceiver
BACNET
BAS
SPI Interface
Address Switches
Figure 4: L
on
communication module connectors and
terminals
SPI From Base
Controller
Neuron FT 3150 Smart
Transceiver / Flash Memory
Power from Base
Controller
FT-X1
Transformer
LON BAS
Neurowire Interface
M
ICro
t
eCh
III u
nIt
C
ontroller