Hardware Configuration
ROBO-8914VG2AR User’s Manual
2-7
29
Ground
30
Read Data#
31
Ground
32
Head Select#
33
Ground
34
Disk Change#
J11: COM1 Serial Port
PIN No.
Signal Description
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTS
7
DTR
8
RI
9
Ground
10
N/C
J12 : COM2 Serial Port 2 Connector
PIN No.
Signal Description
RS-232
RS-422
RS-485
1
DCD (Data Carrier Detect)
TX-
DATA-
2
DSR (Data Set Ready)
N/C
N/C
3
RXD (Receive Data)
TX+
DATA+
4
RTS (Request to Send)
N/C
N/C
5
TXD (Transmit Data)
RX+
N/C
6
CTS (Clear to Send)
N/C
N/C
7
DTR (Data Terminal Ready)
RX-
N/C
