Operating System - HP-UX
1834574 Members
3653 Online
110069 Solutions
New Discussion

Re: how to setup dial-in modem

 
Edmund_2
Advisor

how to setup dial-in modem

Hi all,

I am using Dclass OS 10.20 and just installed a 16-port mux card. I use SAM to create one modem and one terminal. I can use my pc comm port to connect via the mux's terminal port. 'ps' also shows that the two getty are running okay. However, when I dial-in, the modem answers but the login prompt just doesn't appear. I also find that no matter which port I plug in the modem cable, the 4 modem lights are always on: HS, AA, TR, and MR. It is Hayes Accura 2.88 V.34+FAX.
Do I need special comm cable or setup for the modem?

Any suggestion is appreciated

Edmund
5 REPLIES 5
suranji
Advisor

Re: how to setup dial-in modem

Edmund
I got the same problem earlier.

Steps that i followed.

*Enable access by remote console (ER)
*In GSP mode dissable access by remote console (DR)
*in modem S registers, s002=2 ( here i used auto answer in two ringd )
*normal modem cable to correct MUX port.
*start the getty processes (ttydXpY)
*verify getty processes by 'ps' command


correct emulation is VT100 with baud 9600 Even parity 1 stop bit

I also used USR modems
hope it will work.

-suranji
suranji
Alexander M. Ermes
Honored Contributor

Re: how to setup dial-in modem

Hi there.
try this URL :

http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0xe8c9996c5988d5118ff10090279cd0f9,00.html

Rgds
Alexander M. Ermes
.. and all these memories are going to vanish like tears in the rain! final words from Rutger Hauer in "Blade Runner"
Victor_5
Trusted Contributor

Re: how to setup dial-in modem

There are many reasons for this if you could not get the login prompt:

1. The wrong cables being used.
Series 800 MDP mux - 40233A

HP cable (40233A) may be installed backwards. Attach "dataset" end to modem.

Remote modem has carrier detect (CD) forced on. HP needs modem to be configured so that "CD" is off when not in use and on when in use. This condition can be checked with the getty process. The uugetty/getty should be in "?" state. Make sure the port isn't already assigned the port number before modems connect. If the getty is running and in "?" state, it usually indicates a modem configuration issue.

2. Inittab entry for modem is pointing to a hardwired entry in gettydefs. The modem entry should look similar to this:
a0:3:respawn:/usr/lbin/uucp/uugetty -r -t 60 -h ttyd0p0 19200
Do not copy the H for the modemsentry to use 8/NONE/1. It does not carry enough modem signals for the connection to work properly.

3. Remote Access port is locked. From the console, execute "ctrl b". A CM or GSP prompt will display.
>ur (unlock remote)
>dr (disable remote)
>co (returns back to console)

Good luck.
Victor_5
Trusted Contributor

Re: how to setup dial-in modem

I got the pinout for RS-232, hope it is useful for you.

See the attached.
Michael Tully
Honored Contributor

Re: how to setup dial-in modem

Try the linked document it may of some assistance.

http://www.docs.hp.com/hpux/onlinedocs/B2355-90698/00/00/27-con.html

Regards
-Michael
Anyone for a Mutiny ?