Description
Storage/Control I/O Module 1-9
Table 2: Serial Port 4 Pin and Signal Assignments
a
a
All pins not identified are no-connection
Pin
Signal Name
Description/Direction
2
TxD
Transmit Data
(terminal to modem)
3
RxD
Receive Data
(modem to terminal)
4
RTS
Request to Send
(terminal to modem)
5
CTS Clear
to
Send
(modem to terminal)
6
DSR
Data Set Ready
(modem to terminal)
7
GND
Chassis Ground
8
DCD
Data Carrier Detect
(modem to terminal)
15
RTxC
Tx Clock to output data
(terminal to modem)
17
RRxC
Rx Clock to input data
(terminal to modem)
20
DTR Data
Terminal
Ready
(terminal to modem)
24
TTxC
Tx Clock to output data
(terminal to modem)