Reference For The Serial Port A And B Connectors - Sun Microsystems Enterprise 250 Owner's Manual

Reference for the Serial Port A and B
Connectors
Serial Port Connector Diagram
Both serial ports conform to RS-423/RS-232 specifications.
A
Serial Port Signals
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
264 Sun Enterprise 250 Server Owner's Guide • June 1998
13
B
25
Function
none
TXD
RXD
RTS
CTS
DSR
GND
DCD
none
none
none
none
none
none
TRXC
1
14
I/O Signal Description
1
none N.C.
O Transmit Data
I Receive Data
O Ready To Send
I Clear To Send
I Data Set Ready
Signal Ground
I Data Carrier Detect
none N.C.
none N.C.
none N.C.
none N.C.
none N.C.
none N.C.
I Transmit Clock