IEI Integration NOVA-945GSE v2.01 - Manual (Page 54)

NOVA-945GSE 5.25” SBC
Page 52
The 10-pin serial port connector provides a RS-232 serial communications channel. The
COM serial port connectors can be connected to external RS-232 serial port devices.
Figure 3-21: COM Connector Pinout Locations
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 2 DSR
3 RX 4 RTS
5 TX 6 CTS
7 DTR 8 RI
9 GND 10 N/C
Table 3-21: COM Connector Pinouts
3.3.20 COM 3 RS-422/485 Connector
CN Label: JP2
CN Type: 6-pin header (2x3)
CN Location: See
6
Figure 3-22
CN Pinouts: See
6
Table 3-22
The COM 3 serial port can be set for RS-422/485 connectivity by on-board jumper (refer to
Section 4.5.4). The JP2 connector provides the RS-422 or RS-485 signals when COM 3
is set for RS-422 or RS-485 devices.