🚀 go-pugleaf

I found the pinouts for the 4-port card, which I assume are the same
as the backplane ports.   I am now trying to connect the serial
port to a Bridge Communications Server/100, and run ATE (I know)
to pretend my RT is a VT100.  I am using the following cable
connection:
 
       2 Transmit Data  <------->   Receive Data     6
bridge 3 Receive Data   <------->   Transmit Data    1
       7 Signal Ground  <------->   Signal Ground    10    RT (10-pin)

      20 DTR            <---+--->   DTR              2
                            |--->   DSR              7
      ^                     +--->   Carrier Detect   9
db25 pin
                             +-->   RTS              3
                             |-->   ring             4
                             +-->   CTS              8

I added tty0 with devices, auto-enable is off, etc., I configured it
just like an internal modem I have that works on another machine.  ATE
(all set up to talk, no modem control strings, parity, baud, #bits,
stop, mark, etc. are set identically to a terminal that works
when connected to the same cable.  ATE thinks that it gets
connected (not surprising), but no data over the wire.  If you
can tell me how to fix this, I will be most grateful!

Thanks---
John-- 
...................................
John Bunda            UT CS Dept.      
bunda@cs.utexas.edu   Austin, Texas    

From article <5552@cs.utexas.edu>, by bunda@cs.utexas.edu (John Bunda):
> I can't seem to find them, not even in the Hardware Reference.  Does
> anyone have the pinout definitions for the 10-pin serial ports?

Sure, look under 'RS-232C Adapter' in the third volume.  Just in case
you don't have that volume:

1   Transmit Data               6   Receive Data
2   Data Terminal Ready         7   Data Set Ready
3   Request to Send             8   Clear to Send
4   Ring Indicate               9   Data Carrier
5   No Connection              10   Signal Ground

Transmit Data, Data Terminal Ready and Request to Send are OUTPUT from
the card, all others are input ( except ground which is neither ).

+-------+
| 5  10 +-+
| 4   9   |
| 3   8   |    <----- View from rear of adapter showing polarization
| 2   7   |
| 1   6 +-+
+-------+

Good luck!

-- 
Ed Clarke
uunet!bywater!acheron!clarke