topic Re: Modem installation in Operating System - HP-UX

Modem installation

David Steele — Fri, 12 Nov 2004 11:59:16 GMT

We have a L series server rp-5400, trying to use cu command to connect to the modem, and after a connect, can't type AT command or see anything, only ~. to disconnect will work.

Have a modem connected to the PCI interface card on hardware path 0/0/4/1 using asio0 driver(see attachment of ioscan). Only documentation I could find was that 800 series servers use mux0, mux2, or mux4 drivers. New to HP-UX and was wondering if the 800 from the uname and model commands was the series of the HP-9000 server. Only the 700 series in the document shows using asio0 driver for modems.

Any help would be appreciated.

Thank you,
David

Re: Modem installation

Deoncia Grayson_1 — Fri, 12 Nov 2004 12:41:06 GMT

I have a rp 5450 with a modem attached to it as well, but I'm using kermit to dial out. Kermit is a freeware and its kind of like hyperterminal in windows. Kermit should already be loaded on your server. Maybe using it instead of cu will help. I'm not sure what you're using your modem for, but kermit I found was easier to test with.

set modem hayes
set line /dev/cul0p2
set speed 9600
set parity none
set flow none
set count 2
set carrier-watch off
echo WNCT-100I Beginning to dial
dial T9, (your number)

Re: Modem installation

A. Clay Stephenson — Fri, 12 Nov 2004 12:54:48 GMT

If you are going to try to use kermit (and that's a good idea to get started because you won't be fighting two problems at once (uucp and the hardware), you need to edit /etc/inittab and set the port to 'off' and then issue an 'init q' command. Otherwise, uugetty (or getty) will be fighting with your port accesses via kermit.

Is the interface card in your L-box an HP MUX card or some generic communications card intended for a PC? If the latter then you are probably wasting your time. If the former then you need to find the documentation for the MUX cabling. Some HP MUX cards use very unconventional pinouts so an off-the-shelf cable probably won't work.

Re: Modem installation

David Steele — Fri, 12 Nov 2004 14:41:14 GMT

The most important thing I'm trying to find out is what type of interface card does the L-3000 rp54xx need to use a modem, can I connect to the asio0 PCI card on the server? Deoncia, if you do a "lssf /dev/cul0p2" does it show asio0 card, mux0 card, or mux2 card? Thank you all.

Re: Modem installation

Deoncia Grayson_1 — Fri, 12 Nov 2004 14:46:43 GMT

David,

I have asio0.

Re: Modem installation

Bill Hassell — Fri, 12 Nov 2004 16:13:50 GMT

What cable are you using? From computer-to-modem, the cable must be a straight thru, same as the modem cable for a PC. A crossover cable will give you the symptoms you're seeing (no response to AT). Check also that the modem lights turn on when you run cu. If not, wrong cable is highly likely.