jlo@elan.com (Jeff Lo) (06/12/90)
I was trying to move our modems from our MicroVAX to our new SPARCserver 330, but it appears that the pinout of the Sun's 9-pin serial ports (ports B, C and D) is different that the pinout on the Vax's ports. When a Trailblazer is hooked up, I can send data to the modem and make it dial with tip, but no output from the modem is ever sent back up the line. Connecting a US Robotics Courier 2400 appears to hang the machine until I disconnect it. Does anybody have the signal pinout for these ports so I can make a cable which will work (we don't appear to have the hardware manual for the machine)?
rmk@snowhit.att.com (06/13/90)
Serial Ports B, C and D SPARCserver 4/330 (4300 cpu board) Pin Signal Pin Signal 1 DCD 5 GND 2 RXD 6 DSR 3 TXD 7 RTS 4 DTR 8 CTS 9 Unused This is from page 34, Sun 4300 CPU Board Installation Manual, Table A-3 Richard Kurtz (816)995-3204 AT&T rmk@snowhit.att.com