Modem Configuration

[Himanshu_3]

Hi All,

I have ben tried to configure a Multitech MT5634ZBA modem connected to a serial mux card.

I have configured the modem on the system through SAM and have got the confirmation that three device files have been created.

root:logs] # lssf /dev/*a8
pci_mux0 card instance 1 port a8 ccitt callout HW flow control at address 4/0/4/0/0 /dev/cua1a8
pci_mux0 card instance 1 port a8 ccitt callout HW flow control at address 4/0/4/0/0 /dev/cul1a8
pci_mux0 card instance 1 port a8 hardwired at address 4/0/4/0/0 /dev/tty1a8
pci_mux0 card instance 1 port a8 ccitt callin HW flow control at address 4/0/4/0/0 /dev/ttyd1a8
root:logs] # ls -l /dev/*a8
crwxrwxrwx 1 bin bin 96 0x010715 Apr 24 14:51 /dev/cua1a8
crwxrwxrwx 1 bin bin 96 0x010715 Apr 24 14:51 /dev/cul1a8
crw--w--w- 1 bin bin 96 0x010700 Apr 20 18:47 /dev/tty1a8
crwxrwxrwx 1 bin bin 96 0x010716 Apr 24 14:51 /dev/ttyd1a8

root:root] # ls -l /dev/*p1
crw-r--r-- 1 bin bin 1 0x000101 Jan 13 11:13 /dev/cua0p1
crwxrwxrwx 1 bin bin 1 0x000101 Apr 24 15:46 /dev/cul0p1
crw-rw-rw- 2 bin tty 16 0x000001 Nov 13 2003 /dev/ptyp1
crw--w--w- 1 bin bin 1 0x000100 Feb 5 2004 /dev/tty0p1
crwxrwxrwx 1 bin bin 1 0x000102 Jan 13 11:13 /dev/ttyd0p1
crw-rw-rw- 2 bin tty 17 0x000001 Apr 11 14:11 /dev/ttyp1
crw------- 1 root root 31 0x000081 Apr 3 16:28 /dev/tunip1

ioscan output is as below

tty 0 4/0/0/0/0 asio0 CLAIMED INTERFACE PCI Serial (103c1048)
/dev/GSPdiag1 /dev/cul0p1 /dev/mux0 /dev/tty0p1 /dev/ttyd0p1
/dev/cua0p1 /dev/diag/mux0 /dev/tty0p0 /dev/tty0p2

tty 1 4/0/4/0/0 pci_mux0 CLAIMED INTERFACE PCI Serial (113f90f0)
/dev/cua1a8 /dev/diag/mux1_1 /dev/tty1a1 /dev/tty1a4 /dev/tty1a7
/dev/cul1a8 /dev/diag/mux1_2 /dev/tty1a2 /dev/tty1a5 /dev/tty1a8
/dev/diag/mux1 /dev/mux1 /dev/tty1a3 /dev/tty1a6 /dev/ttyd1a8


Now, when I try to use kermit the following error is experienced

root:uucp] # kermit
Executing /usr/share/lib/kermit/ckermit.ini for UNIX...
Good Afternoon!
C-Kermit 7.0.197, 8 Feb 2000, for HP-UX 11.00
Copyright (C) 1985, 2000,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/etc/uucp/) C-Kermit>set line /dev/ttyd1a8
(/etc/uucp/) C-Kermit>set speed 4800
/dev/ttyd1a8, 4800 bps
(/etc/uucp/) C-Kermit>set parity even
(/etc/uucp/) C-Kermit>set flow xon/xoff
(/etc/uucp/) C-Kermit>set dial dis on
(/etc/uucp/) C-Kermit>set dial time 60
(/etc/uucp/) C-Kermit>dial Sorry, you must SET MODEM TYPE first
(/etc/uucp/) C-Kermit>set modem type multitech
(/etc/uucp/) C-Kermit>dial 01189xxxxxx
Trying: 01189xxxxxx...
Device: /dev/ttyd1a8, modem: multitech, speed: 4800
Dial timeout: 70 seconds
To cancel: type your interrupt character (normally Ctrl-C).
Hangup OK
Initializing: 17:02:57...
ATQ0
ATQ0

No response from modem, retrying...
ATQ0

No response from modem, retrying again...
ATQ0

No response from modem, retrying again...
ATQ0

No response from modem, retrying again...
AT&E5&E6&E8&E11&E13
No response from modem, retrying...
AT&E5&E6&E8&E11&E13
No response from modem, retrying again...
AT&E5&E6&E8&E11&E13
No response from modem, retrying again...
AT&E5&E6&E8&E11&E13
ATQ0E1X4&E8&Q0%E1
No response from modem, retrying...
ATQ0E1X4&E8&Q0%E1
No response from modem, retrying again...
ATQ0E1X4&E8&Q0%E1
No response from modem, retrying again...
ATQ0E1X4&E8&Q0%E1
DIAL Failure: 17:03:47: Error initializing modem.
(/etc/uucp/) C-Kermit>




The modem has been configured through sam and the present settings are as below
/dev/console Console 4/0/0/0/0 0 0
/dev/ttyd0p1 Modem 4/0/0/0/0 1 4800
/dev/ttyd1a8 Modem 4/0/4/0/0 a8 4800

I have a few questions for the above problem

1)In kermit, do I have to set up modem type ? If yes what type can I setup ?

2)Which device file is to be used for the connection through kermit as I have tried using all the available options.

3)We have added the below line on /etc/uucp/Devices
Direct cua1a8 - 19200 direct

4)Please let me know if the port speed and RTS/CTS paramters are to be selected or not ?
Also the CCITT selections have to be selected or not.

Cheers,
Himanshu

[Christian Tremblay]

try to isolate the problem by first logging directly into the modem to issue AT commands to dial out a test number
( take kermit out of the equation)

You can access the modem directly with cu
for more info: man cu

[Christian Tremblay]

If you still can't connect to the modem with cu, I think I remember from ancient times that the cable pinout between the mux card and the modem is non standard. Make sure you use a genuine HP cable.

[Himanshu_3]

The cu does not connect to the modem and it hangs after I try to connect to modem.

Also seems the modem does not have any connection problem as the ligths on 56K are blinking.

Any other suggestions ?

[Torsten.]

What kind of server do you have?

[Himanshu_3]

Its a superdome partition, OS version 11i

[Torsten.]

I try to remember the entry in /etc/uucp/Devices

should be cul1a8, not cua1a8.

and try cu like:

# cu -m -l cul3a1 -s 19200 dir

AT should give OK.

I would change the permissions to 0666 for the device files.

[Ajitkumar Rane]

Himanshu,

As said earlier, are you trying a normal serial cable. Bcus for HP the cable is bit non standard. I guess the the normal pins for Rx and Tx are reversed on the HP side.

So refer to the connection guide and you surely need to redo the serial cable if you havent gotthe cablfe from HP.


Rgds,

Ajit

[Torsten.]

Here is the PIN out:

http://www.docs.hp.com/en/J3592-90001/J3592-90001.pdf

[Ajitkumar Rane]

Well anothe link for the modem cable.

http://docs.hp.com/en/B2355-90137/apas01.html

No reason now your modem wont work :-)

Rgds,

ajit

[Himanshu_3]

I would try the new pinout for the modem.

I was also giving a thought to the PCI mux card which is HWP1510.

I suppose there are no compatibility issues with this.

Cheers,
Himanshu

[Sยภเl Kย๓คг]

Is the Modem cable working ?. Can you check the cable.

Regards,
Sunil

[Bill Hassell]

The lights on the Multitech will help identify the problem. First, the cable MUST be a straight-through modem cable. This is the same type of cable as a PC would use for a modem. Note that a null modem (aka, crossover or printer cable) is 100% incompatible.

With the correct cable, you should see the DTR light (data terminal/CPU ready). The modem should never be strapped to always answer the phone or to continuously supply DCD (carrier detect) signal as there is no way for the computer to properly handle incoming or outgoing calls.