EAX-Q77
User’s Manual
28 EAX-Q77
User’s Manual
2.6.5
COM Port Headers (COM2/COM3/COM4/COM5/COM6)
COM2
Signal
PIN PIN
Signal
NDCD2-
1
2
NRXD2-
NTXD2-
3
4
NDTR2-
GND
5
6
NDSR2-
NRTS2-
7
8
NCTS2-
RI2-/5V/12V
9
10
NC
COM3
Signal
PIN PIN
Signal
NDCD3-
1
2
NRXD3-
NTXD3-
3
4
NDTR3-
GND
5
6
NDSR3-
NRTS3-
7
8
NCTS3-
NRI3-
9
10
NC