11
PIN
Description
1
GND
2
+12V
3
CONTROL
3.3 Serial Ports
•
The ICPMB-7880 offers four high speed NS16C550 compatible UARTs with
Read/Receive 16 byte FIFO.
•
COM2 : COM2 (RS-232/485)
PIN NO. DESCRIPTION
PIN NO. DESCRIPTION
1
DCD4
2
DSR4
3
RX4
4
RTS4
5
TX4
6
CTS4
7
DTR4
8
RI4
9
GND
10
•
CN46 : (RS-422/485 ONLY)
PIN NO. DESCRIPTION
1
+XTX2
2
-XTX2
3
XRX2+
4
XRX2-
•
CN38,CN37: COM3,COM4(RS-232 ONLY)
PIN NO. DESCRIPTION
PIN NO. DESCRIPTION
1
NRLSD3
2
NDSR3
3
NRX3
4
NRTS3
5
NTX3
6
NCTS3
7
NDTR3
8
-XRI3
9
GND
10
3.4 Power Connector
The pin assignments are as following:
•
ATX: Micro ATX Power Connector 24 PIN