Chapter 5
25
QDSP-2020 User’s Manual
Pin
Signal
1 Tx+
2 Tx-
3 Rx+
4 NC
5 NC
6 Rx-
7 NC
8 NC
Table 4 10/100/1000 Ethernet RJ-45 Connector (LAN)
Pin
Signal
1
DCD, Data carrier detect
2
RXD, Receive data
3 TXD,
Transmit
data
4
DTR, Data terminal ready
5 GND,
ground
6
DSR, Data set ready
7
RTS, Request to send
8
CTS, Clear to send
9
RI, Ring indicator
Table 5 RS-232/422/485 Port DB-9 Connector (COM1)
Table 6 RS-232 Port DB-9 Connector (COM2)
Pin
Signal
1 KBDAT
2 MSDAT
3 GND
4 +5V
5 KBCLK
6 MSCLK
Table 7 PS/2 KB/MS Mini-DIN Connector (MS/KB)