Serial Ports A And B (Rs-422/Rs-232) - Sun Microsystems Ultra 1 Series Service Manual

TABLE B–1
Signal Name Pin
3 k bd-pwer
4 m se-rxd
These connectors are located on the back panel of system board.
Figure B–2
TABLE B–2
Pin
1
2
3
4
5
6
7
Sun Ultra 1 Series Service Manual ♦ Revision A, November 1995
112
Keyboard/Mouse Pin Assignments
Description
Keyboard
power
Mouse receive
data
Serial Ports A and B Con
Serial Ports Pin Assignments
Signal Name Description
Not none
connected
Transmit TxD
Data
Receive Data RxD
Ready To RTS
Send
Clear To CTS
Send
Data Set DSR
Ready
Signal Gnd
Ground
(continued)
Pin Signal Name
7 kbd-pwk
8 kbd-pwr
Pin Signal Name
14 Not
connected
15 Transmit
Clock
16 Not
connected
17 Receive
Clock
18 Not
connected
19 Not
connected
20 Data
Terminal
Ready
Description
Keyboard
power key
Keyboard
power
Description
none
TRxC
none
RTxC
none
none
DTR