IEI Integration NANO-9453 v1.0 - Manual (Page 75)

NANO-9453 EPIC Motherboard
Page 57
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
7 DATA TERMINAL READY (DTR1) 8 RING INDICATOR (RI1)
9 GND 10 GND
11 DATA CARRIER DETECT (DCD2) 12 DATA SET READY (DSR2)
13 RECEIVE DATA (RXD2) 14 REQUEST TO SEND (RTS2)
15 TRANSMIT DATA (TXD2) 16 CLEAR TO SEND (CTS2)
17 DATA TERMINAL READY (DTR2) 18 RING INDICATOR (RI2)
19 GND 20 GND
21 DATA CARRIER DETECT (DCD3) 22 DATA SET READY (DSR3)
23 RECEIVE DATA (RXD3) 24 REQUEST TO SEND (RTS3)
25 TRANSMIT DATA (TXD3) 26 CLEAR TO SEND (CTS3)
27 DATA TERMINAL READY (DTR3) 28 RING INDICATOR (RI3)
29 GND 30 GND
31 DATA CARRIER DETECT (DCD4) 32 DATA SET READY (DSR4)
33 RECEIVE DATA (RXD4) 34 REQUEST TO SEND (RTS4)
35 TRANSMIT DATA (TXD4) 36 CLEAR TO SEND (CTS4)
37 DATA TERMINAL READY (DTR4) 38 RING INDICATOR (RI4)
39 GND 40 GND
Table 4-19: 4-Port Serial Port Connector
4.2.18 USB Connectors (Internal)
CN Label: USB01 and USB23
CN Type: 8-pin header (2x4)
CN Location: See Figure 4-20
CN Pinouts: See Table 4-20
The 2x4 USB pin connectors each provide connectivity to two USB 1.1 or two USB 2.0
ports. Each USB connector can support two USB devices. Additional external USB ports
are found on the rear panel. The USB ports are used for I/O bus expansion.