System Description - Communication Functions
Part No.: 4418309_Rev09 Fusion4 MSC-L
Honeywell Installation & Operation Manual 3 - 63
FIGURE 3-37 illustrates the RS Communication 2-wire connections and
FIGURE 3-38 illustrates the RS Communication 4-wire connections.
FIGURE 3-37 RS Communication 2-wire connections
FIGURE 3-38 RS Communication 4-wire connections (CAN-HMI-MSC only)
1, 4
2, 5
3, 6
CNx
RS485_A_CHx
RS485_B_CHx
RS485_Common_CHx
CAN-ARM-MSC
CAN-HMI-MSC
RS-485
TRANSCEIVER
TXD
RXD
0V
0V
TXD
RXD
External equipment
0V connection is omitted for some
RS-485 applications
TXD
RXD
1
2
5
CN151
RS485_A_CH5
RS485_B_CH5
RS485_Y_CH5
RS485_Z_CH5
RS485_Common_CH5
CAN-HMI-MSC
RS-485
TRANSCEIVER
TXD
RXD
0V
0V
4
3
0V connection is omitted for some
RS-485 applications
External equipment
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