RS232 Communications HP9000 Series 320

[Carlos E Murillo-Sanchez]

Roger Addy via cctech wrote:
> Hi All,
>
> First post here.  I have a HP9000 Series 320 computer with a HP Drive 
> system.  It uses the HPL 2.1 (I think) operating system. I'm trying to 
> get some ASCII files out of the system using the RS232 port.  The port 
> is female DB9, so I'm assuming it's DCE.  I got an HP cable DB9 to 
> DB25 which reorients the pins to PC standard RS232 DTE.  I can get a 
> connection with the HP. but when I try to send a file it just shows 
> the word "PROMPT" on the PC. I'm not sure what to do at this point.  
> I'm currently using Tera Term.  Any advice is appreciated.
I have this HP cable part # 98561-61604, which I think is exactly for 
early HP9000-300 machines.  It is a male DE-9 to female DB-25 cable, and 
the pinout is as follows:

Male DE9         Female DB25
--------         ----------
1 ---------------- 20 DTR
2 ---------------- 2  TD
3 ---------------- 3  RD
4 ---------------- 4  RTS
5 ---------------- 5  CTS
6 ---------------- 6  DSR
7 ---------------- 7  SG
8 ---------------- 8  CD
9 ---------------- 22 RI

Clearly, the DE-9 is not a PC-style serial pinout.

carlos.