Sun Serial (DB25) connector

#Computer#Serial Interfaces#Sun

Available on SUN computers since the SUN3 series (1988) to the current UltraSparc systems (RS423/RS232)

25 pin D-SUB FEMALE connector pin-out & layout

25 pin D-SUB FEMALE connector  at the computer

Used at least in Ultra 1/ 2/ 5 / 10 / 30/ 60 / 80, Enterprise 150/ 220R/ 250/ 3000/ 3500/ 4500/ 5000/ 5500/ 6500, Netra t 1120/ 1125/ 1400/ 1405 / SPARCstation 5 / Sun Blade 1000 / Sun Blade 2000 / Sun Fire 280R / Enterprise 420R serial ports.

PinNameDirDescription
1n/c- 
2TXD-->Transmit Data
3RXD<--Receive Data
4RTS-->Request to Send
5CTS<--Clear to Send
6DSR<--Data Set Ready
7GND-System Ground
8DCD<--Data Carrier Detect
9n/c-BUTTON_POR (Power-on reset) for Sun Ultra 80 / Sun Blade 1000 / Sun Blade 2000 / Sun Fire 280R / Enterprise 420R
10n/c-BUTTON_XIR_L (Transmit internal reset) for Sun Ultra 80 / Sun Blade 1000 / Sun Blade 2000 / Sun Fire 280R / Enterprise 420R
11n/c-+5 Vdc for Sun Ultra 80 / Sun Blade 1000 / Sun Blade 2000 / Sun Fire 280R / Enterprise 420R
12n/c- 
13n/c- 
14n/c- 
15TRxC<--Transmit Clock
16n/c- 
17RTxC<--Receive Clock
18n/c- 
19n/c- 
20DTR-->Data Terminal Ready
21n/c- 
22n/c- 
23n/c- 
24TxC-->Transmit Clock
25n/c- 
Note: Direction is DTE (Computer) relative DCE (Modem)

SUN Keyboard/Mouse Connector (old)

TI-99/4A Video/Audio connector