IEI Integration NANO-9453 v1.0 - Manual (Page 73)

NANO-9453 EPIC Motherboard
Page 55
PIN NO. DESCRIPTION
4 GND
5 RX-
6 RX+
7 GND
Table 4-17: SATA Drive Connector Pinouts
4.2.16 Serial Port Connector (RS-422 or RS-485)
CN Label: CN5
CN Type: 4-pin header (2x7)
CN Location: See Figure 4-18
CN Pinouts: See Table 4-18
The 4-pin serial port connector supports RS-422 or RS-485 serial port.
Figure 4-18: RS-422/485 Serial Port Connector Location
PIN NO. DESCRIPTION
1 TXD485#
2 TXD485+
3 RXD485+
4 RXD485#
Table 4-18: RS-422/RS-485 Serial Port Connector Pinouts
4.2.17 4-port Serial Port Connector (RS-232)