Serial Connectors; Figure 1-2 Db-25 Serial Connectors - Sun Microsystems Ultra 1 Series Reference Manual

1.2

Serial Connectors

13
25
13
25
FIGURE 1-2
TABLE 1-1
Pin
1
2
3
4
5
6
7
8
9-14
15
16
17
18-19
20
21-23
24
25
1-2 Sun Ultra 1 Series Reference Manual • September 1995
1
14
1
14
DB-25 Serial Connectors
Serial Connector Pinouts, RS-423/RS-232
Function
none
TxD
RxD
RTS
CTS
DSR
Gnd
DCD
none
TRxC
none
RTxC
none
DTR
none
TxC
none
A
B
I/O
none
O
I
O
I
I
I
none
I
none
I
none
O
none
O
none
Signal Description
Not connected
Transmit Data
Receive Data
Ready To Send
Clear To Send
Data Set Ready
Signal Ground
Data Carrier Detect
Not connected
Transmit Clock
Not connected
Receive Clock
Not connected
Data Terminal
Ready
Not connected
Transmit Clock
Not connected