Owner manual

User’s Manual
EBM-BYT User’s Manual
23
2.3.9 Serial port 1 connector (COM1)
RS-232 Mode
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
RS-422 Mode
Signal
PIN
PIN
Signal
485TXN
1
6
NC
485TXP
2
7
NC
485RXP
3
8
NC
485RXN
4
9
NC
GND
5
RS-485 Mode
Signal
PIN
PIN
Signal
485TXN
1
6
NC
485TXP
2
7
NC
NC
3
8
NC
NC
4
9
NC
GND
5