Info-3b2 Digest, Issue 82
Ken Davis
kdavis at lamc.UUCP
Tue May 16 05:08:01 AEST 1989
Info-3b2 Digest, Number 82
Monday, May 15th 1989
Today's Topics:
Submission
----------------------------------------------------------------------
Subject: Submission
From: info-3b2 at netsys.COM
Date: Mon, 15 May 89 14:53:01 -0400
Date: Mon, 15 May 89 10:12:03 edt
From: ames!mailrus!uflorida!bigbroth!rk
I'm trying to make a direct connect between a bell tech 386/25 and
a 3b2/400. The port on the 386 is an ace intelligent port board
with 8 modular ports.
I'm trying to construct a modular null modem cable. This is the
wiring diagram I've come up with, but haven't tried it yet. Does
anybody know if this is correct?
386/ace board 3b2/enhanced ports board
1 G <-----------------------------------------> G
2 CTS <------| |-----------> CTS
| |
3 TDXO<......|........\/------------|-----------> TDXO
| /\ |
4 DTR <------|------\/ \/..........|...........> DTR
| /\ /\ |
5 RXDO<------|-----/ \/ \.........|............> RXDO
| /\ |
6 DCD <......|......./ \-----------|------------> DCD
| |
7 G <------|----------------------|------------> G
| |
8 RTS <------| |------------> RTS
What I'm trying to say is:
G 1 to 1 G
CTS 2 tie to 8 (plug)
TDXO 3 to 5 RXDO
DTR 4 to 6 DCD
RXDO 5 to 3 TDXO
DCD 6 to 4 DTR
G 7 to 7 G
RTS 8 tie to 2 (plug)
Neither the 386 or 3b2 have DSR (RS232 pin 6) which is usually tied to
DTR. Is it needed?
=======================================================================
Rohan Kelley -- UNIleX Systems, Inc. (Systems and software for lawyers)
UUCP: ...{gatech!uflorida,ucf-cs}!novavax!bigbroth!rk (office)
novavax!mdlbrotr!rk (home)
ATTmail: attmail!bigbroth!rk
3365 Galt Ocean Drive, Ft. Lauderdale, FL 33308 Phone: (305) 563-1504
"Go first class or your heirs will" -somebodyelse
=======================================================================
-------------------------------------
To join this group or have your thoughts in the next issue, please
send electronic mail to Ken Davis at the following address;
{apple, netsys, pacbell, pyramid}!lamc!info-3b2-digest
The views expressed in Info-3b2 Digest are those of the
individual authors only.
**********************
End of Info-3b2 Digest
**********************
More information about the Comp.sys.att
mailing list