Very Computer

by **Matthew Cummin** » Thu, 30 Mar 1995 04:00:00

: Someone gave me a VT320 terminal and I'd like to try and connect it
: directly to a Linux server. The terminal has what looks like a phone
: jack on it andI don't know how to go about connecting this to a 25 or

That's for the keyboard, plug it in there.

: 9 pin serial port on Linux. Can someone give me some clues as to how I'm
: supposed to get this connected ?

Use the db25 connector that's on the back, and a null modem cable.
--

by **R..** » Thu, 30 Mar 1995 04:00:00

Someone gave me a VT320 terminal and I'd like to try and connect it
directly to a Linux server. The terminal has what looks like a phone
jack on it andI don't know how to go about connecting this to a 25 or
9 pin serial port on Linux. Can someone give me some clues as to how I'm
supposed to get this connected ?

***********************************
* Rob Poole *
* Atlantic Computer Institute *

* (902) 423-8383 *
***********************************

by **Abed Tony BenBrah** » Fri, 31 Mar 1995 04:00:00

>Subject: VT320 Connection
>Date: 29 Mar 1995 11:14:18 -0400
>Someone gave me a VT320 terminal and I'd like to try and connect it
>directly to a Linux server. The terminal has what looks like a phone
>jack on it andI don't know how to go about connecting this to a 25 or
>9 pin serial port on Linux. Can someone give me some clues as to how I'm
>supposed to get this connected ?

+----+
+------+ +--------+
| |
| |
+----------------------+
1 2 3 4 5 6

Pin Description
----- -------------------
1 Clear To send
2 Signal Ground
3 Receive Data
4 Transmit Data
5 Frame Ground
6 Request to Send

You will only need pins 2 3 and 4.

Tony BenBrahim
StarTech Computer Services

by **Joshua Kopl** » Sat, 01 Apr 1995 04:00:00

: : Someone gave me a VT320 terminal and I'd like to try and connect it
: : directly to a Linux server. The terminal has what looks like a phone
: : jack on it andI don't know how to go about connecting this to a 25 or

: That's for the keyboard, plug it in there.

well, not necessarily, some networks use 10baseT cables to connect terminals
so you may be looking at one of those. However, if that is the case, then
there should be an adapter than you can remove, underneath of which is a 25
pin serial connector. The "phone jack" type connector for the keyboard should
be smaller, and it should be recessed into the case, so you can tell the diff.

Do this: if the thing that looks like a phone jack sticks out the back of the
case pretty far, then try and remove it...screws, clips, or just sheer brute
force should do the trick. Then underneath that there will be a serial
connection and I'm sure you can figure everything out from there :)
but as Matthew Cummings mentioned, you need a null modem cable....
I hope this helps...
--Joshua

------------------------------------------------------------------------------
Joshua Koplik, owner of Founder of the "Keep your .Sig short"
SeaFood.blackdown.org Foundation
------------------------------------------------------------------------------

by **Dale Shuttlewor** » Sun, 02 Apr 1995 04:00:00

Hi,

[...]

: Pin Description
: ----- -------------------
: 1 Clear To send
: 2 Signal Ground
: 3 Receive Data
: 4 Transmit Data
: 5 Frame Ground
: 6 Request to Send

: You will only need pins 2 3 and 4.

Yes, but if you're making up the cable, you might as well wire 1 and 6
as well and avoid overruns. I don't know what the V320 is like, but
VT100s are very prone to overruns at 19200bps and above (not that you
can read the text going by at that speed :-).

Dale.

--
******************************************************************************
* Dale Shuttleworth *

******************************************************************************

by **Mike Ibar** » Wed, 12 Apr 1995 04:00:00

> : : Someone gave me a VT320 terminal and I'd like to try and connect it
> : : directly to a Linux server. The terminal has what looks like a phone
> : : jack on it andI don't know how to go about connecting this to a 25 or

> : That's for the keyboard, plug it in there.

> well, not necessarily, some networks use 10baseT cables to connect terminals
> so you may be looking at one of those. However, if that is the case, then
> there should be an adapter than you can remove, underneath of which is a 25
> pin serial connector. The "phone jack" type connector for the keyboard should
> be smaller, and it should be recessed into the case, so you can tell the diff.

> Do this: if the thing that looks like a phone jack sticks out the back of the
> case pretty far, then try and remove it...screws, clips, or just sheer brute
> force should do the trick. Then underneath that there will be a serial
> connection and I'm sure you can figure everything out from there :)
> but as Matthew Cummings mentioned, you need a null modem cable....
> I hope this helps...
> --Joshua

> ------------------------------------------------------------------------------
> Joshua Koplik, owner of Founder of the "Keep your .Sig short"
> SeaFood.blackdown.org Foundation
> ------------------------------------------------------------------------------

NO, no, no...

Don't do anything to this RJ-11 connector, that's the one that looks like a phone jack. Contact Digital Equipment Corp (DEC), and ask them for a pinout for this to DB25, maybe even post to comp.sys.dec? (or something like that?) The pinouts are inside of the VT320 manual. After you make/acquire the proper cable, make it null, or connect it to a null-modem adapter. Connect this to your serial port on your PC running linux and you are all set!

I will look for the pin-outs for you, but no promises as I am no where near any for awhile, gotta go look in my closet and dust them off :-)

regards,

Mike Ibarra

by **Scott Weinste** » Thu, 13 Apr 1995 04:00:00

Mike> NO, no, no...

Mike> Don't do anything to this RJ-11 connector, that's the one
Mike> that looks like a phone jack. Contact Digital Equipment Corp
Mike> (DEC), and ask them for a pinout for this to DB25, maybe
Mike> even post to comp.sys.dec? (or something like that?) The
Mike> pinouts are inside of the VT320 manual. After you
Mike> make/acquire the proper cable, make it null, or connect it
Mike> to a null-modem adapter. Connect this to your serial port on
Mike> your PC running linux and you are all set!

Mike> I will look for the pin-outs for you, but no promises as I
Mike> am no where near any for awhile, gotta go look in my closet
Mike> and dust them off :-)

The vt320s use some freak rj-?? with an offset on it. I doubt a std
RJ-11 will fit. Your safest bet is to buy, from Digital, a vt320 cable
and a converter from rj-?? to db-25.

--SW

If you need pin-outs let me know.

by **Christian Weisgerb** » Sat, 15 Apr 1995 04:00:00

> The vt320s use some freak rj-?? with an offset on it.

The freak-RJ45 is called (DEC) MMJ.

Quote:> I doubt a std RJ-11 will fit.

It won't.

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