GOT-3150T/3150TL User
’
s Manual
13
2.5 Serial Ports
COM Port Connector: COM1
The connector, COM 1, is a DB-9 connector,
and the following table
shows the pin assignments of this connector.
Pin
Signal Name
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
COM1
COM Port Connectors:
The RS-232 pin assignments are listed on the following
table.
Pin
Description
Pin
Description
1
Data Carrier Detect
(DCD)
2
Data
Set
Ready
(DSR)
3
Receive Data (RXD)
4
Request
to
Send
(RTS)
5
Transmit Data (TXD)
6
Clear to Send (CTS)
7
Data Terminal Ready
(DTR)
8
Ring Indicator (RI)
9
Ground (GND)
10
NC
2
4
6
1
3
5
7
8
9
10
