Serial Port Connectors; Usb Connector; Table 52. External Serial A Port Pin-Out (J8A1); Table 53. Internal 9-Pin Serial B Header Pin-Out (J1B2) - Intel S3420GPLC - Server Board Motherboard Specification

Connector/Header Locations and Pin-outs
Pin
45
47
49
7.5.5

Serial Port Connectors

The server board provides one external DB9 Serial A port (J8A1) and one internal 9-pin serial B
header (J1B2). The following tables define the pin-outs.
7.5.6

USB Connector

There are four external USB ports on two NIC/USB combinations. Section 5.5.2 details the pin-
out of the connector.
Two 2x5 connector on the server board (J1E1, J1D1) provides an option to support an
additional USB port, each connector supporting two USB ports. The following table defines the
pin-out of the connector.
84
Signal Name
P3V3
P3V3
P3V3

Table 52. External Serial A Port Pin-out (J8A1)

Pin Signal Name
1 SPA_DCD
2 SPA_SIN_L
3 SPA_SOUT_N
4 SPA_DTR
5 GND
6 SPA_DSR
7 SPA_RTS
8 SPA_CTS
9 SPA_RI
10 NC

Table 53. Internal 9-pin Serial B Header Pin-out (J1B2)

Pin Signal Name
1 SPB_DCD
2 SPB_DSR
3 SPB_SIN_L
4 SPB_RTS
5 SPB_SOUT_N
6 SPB_CTS
7 SPB_DTR
8 SPB_RI
9 SPB_EN_N
10 NC

Table 54. Internal USB Connector Pin-out ( J1E1, J1D1)

Pin Signal Name
1 USB2_VBUS4
2 USB2_VBUS5
Intel order number E65697-010
Pin Signal Name
46 P3V3
48 P3V3
50 P3V3
Description
DCD (carrier detect)
RXD (receive data)
TXD (Transmit data)
DTR (Data terminal ready)
Ground
DSR (data set ready)
RTS (request to send)
CTS (clear to send)
RI (Ring Indicate)
Description
DCD (carrier detect)
DSR (data set ready)
RXD (receive data)
RTS (request to send)
TXD (Transmit data)
CTS (clear to send)
DTR (Data terminal ready)
RI (Ring indicate)
Enable
Description
USB power (port 4)
USB power (port 5)
Intel® Server Board S3420GP TPS
Revision 2.4