IEI Integration PCISA-PV-D4251_N4551_D5251 - Manual (Page 46)

PCISA-PV-D4251/N4551/D5251 CPU Card
Page 33
3.2.17 RS-232/422/485 Serial Port Connector (COM2)
CN Label: COM2
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-18
CN Pinouts: See Table 3-20
The serial ports connectors connect to RS-232/422/485 serial port device.
Figure 3-18: COM2 Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 -NDCDB 2 -NDSRB
3 NSINB 4 -NRTSB
5 NSOUTB 6 -NCTSB
7 -NDTRB 8 -XRI2
9 GND 10 GND
11 TXD422+/TXD485+ 12 TXD422-/TXD485-
13 RXD422+ 14 RXD422-
Table 3-20: COM2 Pinouts
3.2.18 SATA Drive Connectors
CN Label: SATA1, SATA2 and SATA3
CN Type: 7-pin SATA drive connectors (1x7)