Subject: Re: troubles with DECstation 5000/240 (another one)
To: Daniel Senderowicz <daniel@synchrods.synchrods.COM>
From: Chris Tribo <talon16m@hotmail.com>
List: port-pmax
Date: 01/16/2000 15:02:59
on 1/16/00 1:24 AM, Daniel Senderowicz at daniel@synchrods.synchrods.COM
wrote:

>>>>> test
>>> ?TFL: 3/ni/ext-lb (3:(xmt [00000006, 00000040] cable)) [KN03-AA]
>>> 
>> 
>> I'm fairly certain this means that you have one or more of the following:
>> 1.) have no transceiver / loopback connected
>> 2.) are using 10Base2 (BNC) and don't have it terminated properly (50
>> ohm t-res on both ports of a BNC T
>> 3.) have no link
>> 4.) excessive network collisions from somewhere else on the network
>> 5.) wrong type / resistance or bad cable.
> 
> I have no link. The port (not BNC) is not connected to any
> network.

    Yep, that'll do it. If you feel like terminating it, you need a BNC "T"
and two 50 ohm terminators.

>> 
>>>>> test-scc-m
>>> ?TFL: 3/scc/pins (2:Ln 2 strtup R-00 xptd=00 actl=20 | 4-5|) [KN03-AA]
>> 
>> scc is the serial controller, sounds like it doesn't like whatever you
>> have plugged into port 2. Whether port 2 is com port 2 on the back of the
>> unit or com port 2 the keyboard/mouse port, I couldn't tell you. I'm
>> guessing it is port two on the back of the unit.
> 
> I have a V.90 modem connected to port 2. I wonder if all modems
> give this kind of message or just this one (Explorer V.90 Ex).
> Incidentally I was having problems using rates above 38400. Does
> anybody have problems communicating above 57600, e.g. 115200?
> 
> Thanks,
> 
> Dan
> 

    According to the Docs for my 5000/200 (DZ serial port based), the
transmitters max out at 38400 baud (yes baud was used in the DEC manual,
sheesh). So you'll have to limit your DTE to 38400. It also mentions that at
speeds above 9600, the DZ uses an external baud generator. This means that
you can't have one port set to 19200 and the other port set to 38400. In
other words, if both ports are set above 9600, they have to be the same
speed to work.

    Chris