Serial Ports A And B; Figure B-7 Serial Port A And B Connector Pin Configuration; Table B-8 Serial Port A And B Connector Pin Assignments - Sun Microsystems Sun Blade 1000 Service Manual

B.2

Serial Ports A and B

The serial port A and B connectors (J2001) are DB-25 connectors located on the
motherboard back panel.
Serial port A
50
39
FIGURE B-7
TABLE B-8
Pin
1
2
3
4
5
6
7
8
9
10
B-6 Sun Blade 1000 and Sun Blade 2000 Service Manual • January 2002
Serial port B
13
38
25
14
26
1
Serial Port A and B Connector Pin Configuration
Serial Port A and B Connector Pin Assignments
Signal
NC
SER_TDX_A_CONN
SER_RXD_A_CONN
SER_RTS_A_L_CONN
SER_CTS_A_L_CONN
SER_DSR_A_L_CONN
GND
SER_DCD_A_L-CONN
BUTTON_POR
BUTTON_XIR_L
Description
Not connected
Transmit data
Receive data
Ready to send
Clear to send
Data set ready
Signal ground
Data carrier detect
Power on reset
Transmit internal reset