Bfc-1508 Connector Mapping; External Serial Port Connector (Com) - Avalue Technology BFC-1508 Quick Reference Manual

BFC-1508

2.1 BFC-1508 connector mapping

2.1.1

External Serial Port connector (COM)

Note:
RS-232/422/485 can be selected by BIOS, but additional
setting for RS-485 mode by SW2.
10 BFC-1508 Quick Reference Guide
RS-232 Mode
Signal PIN PIN
NRXDA 2 1
NDTRA# 4 3
NDSRA# 6 5
NCTSA# 8 7
9
RS-422 Mode
Signal PIN PIN
485TXP 2 1
485RXN 4 3
NC 6 5
NC 8 7
9
RS-485 Mode
Signal PIN PIN
485TXP 2 1
NC 4 3
NC 6 5
NC 8 7
9
Signal
NDCDA#
NTXDA
GND
NRTSA#
NRIA#
Signal
485TXN
485RXP
GND
NC
NC
Signal
485TXN
NC
GND
NC
NC