Quick Reference Guide
BFC-1509 Quick Reference Guide 11
2.1 BFC-1509 connector mapping
2.1.1
External Serial Port 1 connector (COM1)
Signal
PIN PIN
Signal
NDCDA#_485TXN
1
6
NDSRA#
NRXDA_485TXP
2
7
NRTSA#
NTXDA_485RXP
3
8
NCTSA#
NDTRA#_485RXN
4
9
NRIA#
GND
5