19 Aug
2012
19 Aug
'12
6:05 p.m.
Looks like the 50pin connection (J1) on the SUN2 CPU has 2 serial
ports, found a pinout:
The two serial ports on J1 are usually labelled SIO-A and SIO-B
on the back of the machine and appear as /dev/ttya and /dev/ttyb
under SunOS. The documented maximum output speed is 19200 bps.
All ports are wired DTE and are compatible with both RS-232C and
RS-423, using Zilog Z8530A dual UART chips. The pinout of J1 is:
3 TxD-A 14 DTR-A 33 DD-B
4 DB-A 15 DCD-A 34 CTS-B
5 RxD-A 22 DA-A 36 DSR-B
7 RTS-A 24 BSY-A 38 GND-B
8 DD-A 28 TxD-B 39 DTR-B
9 CTS-A 29 DB-B 40 DCD-B
11 DSR-A 30 RxD-B 47 DA-B
13 GND-A 32 RTS-B 49 BSY-B
Is the Sun 2 Keyboard a serial keyboard? If not, any ideas on where to
get a serial keyboard.
Thanks everyone!
-Nick