Quick Reference Guide
BFC-1208 Quick Reference Guide 11
2.1 BFC-1208 connector mapping
2.1.1
External Serial Port connector 1(COM1)
Note:
RS-232/422/485 can be selected by BIOS, but additional
setting for RS-485 mode by SW2.
RS-232 Mode
Signal
PIN PIN
Signal
NRXDA
2
1
NDCDA#
NDTRA#
4
3
NTXDA
NDSRA#
6
5
GND
NCTSA#
8
7
NRTSA#
9
NRIA#
RS-422 Mode
Signal
PIN PIN
Signal
485TXP
2
1
485TXN
485RXN
4
3
485RXP
NC
6
5
GND
NC
8
7
NC
9
NC
RS-485 Mode
Signal
PIN PIN
Signal
485TXP
2
1
485TXN
NC
4
3
NC
NC
6
5
GND
NC
8
7
NC
9
NC
