From: gerg@netcom.com (Greg Andrews)
Newsgroups: comp.unix.xenix.sco
Subject: T2500 with Xenix
Date: 15 Oct 92 17:23:27 GMT
Organization: Netcom Online Communications Services (408-241-9760 login: guest)

In article <718418469.24042@zooid.guild.org> vid@zooid.guild.org (David Mason) writes:
>
>Also, I could use the same for a Telebit Trailblazer T2500, it doesn't seem to
>have compression on when other sites connect with the current setup.
>

Probably doesn't have error control at all if you relied on dialTBIT to
configure the modem for you.

Here's a condensed version of the setup guide available from Telebit tech
support (1-800-TELEBIT or 408-734-5200):

(these examples assume the modem is connected to the "COM1" port, tty1a/tty1A)

Your /usr/lib/uucp/Devices file should look like this:

	Direct   tty1a - 1200-19200 direct
	ACU      tty1A - 1200-19200 tbnorm
	ACUPLAIN tty1A - 1200-19200 tbplain
	ACUUPEP  tty1A - 1200-19200 tbuupep

Note the "Direct" entry accesses the non-modem-control port (lowercase
letter), and the other entries access the modem-control port (uppercase
letter).  Direct connections to the modem for adjusting registers and
testing modem connections should be performed through the non-modem-control
port with this command:

	cu  -ltty1a  -s19200  dir


Here are the commands you should type to your T2500:

	AT &F
	AT X3 Q4 S45=255 S48=0 S50=0 S51=254 S52=2 S54=3
	AT S58=2 S64=1 S66=1 S92=1 S95=2 S97=1 S106=1 S131=1
	AT &W


Add these entries to your /usr/lib/uucp/Dialers file:

   # tbnorm:  Script for 'normal' modem calls with MNP or V.42
   # tbplain: Script for 'plain' calls without MNP or V.42
   # tbuupep: Script for using UUCP protocol support in PEP mode
   tbnorm   =W-,  "" ATE0 OK ATDT\D CONNECT
   tbplain  =W-,  "" ATE0S95=0S97=0S106=0 OK ATDT\D CONNECT
   tbuupep  =W-,  "" ATE0S7=60S50=255S111=30 OK ATDT\D CONNECT-\c-CONNECT


Add this entry to your /etc/gettydefs file:

    p # EXTA HUPCL OPOST CR1 ECHOE NL1 #
        EXTA CS8 SANE HUPCL TAB3 ECHOE IXANY CTSFLOW #\r\n@!login: # p


Look in the /etc/ttys file and find the entry for the modem control port.
The first character on the line should be a zero (0).  If it isn't, disable
the port before editing the /etc/ttys file.  Change the second letter of
the line to a "p" so it looks like this:

	0ptty1A

After all the files have been set up, you can enable the modem control port
(tty1A, not tty1a).

Examples of /usr/lib/uucp/Systems file entries that will select the different
Dialers entries (and therefore use different modem configurations):

	example Any ACU 19200 5551212  ogin: hello ssword: itsme
	example Any ACUPLAIN 19200 5551212  ogin: hello ssword: itsme
	example Any ACUUPEP 19200 5551212  ogin: hello ssword: itsme

Use the "ACU" device type for 'normal' modem calls where you want your modem
to use MNP or V.42 error correction with the other modem.  Compression is
already enabled.  Use the "ACUPLAIN" device type for 'plain' modem calls to
modems that don't have MNP or V.42 error correction.  Use the "ACUUPEP"
device type for making PEP connections with UUCP protocol support.

That should get you where you need to go.  About the only topic that I didn't
cover is data compression in PEP mode.  Look up the S110 register, but be
aware that the PEP-mode data compression won't be desirable if you're going
to transfer compressed files.  The T2500's PEP-mode compression is like MNP5
and will slow down transfers of compressed files.  Leave it turned off for
those kinds of file transfers...


-- 
 .------------------------------------------------------------------.
 |  Greg Andrews   |       UUCP: {amdahl,claris}!netcom!gerg        |
 |                 |   Internet: gerg@netcom.COM                    |
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