US Robotics 56K Faxmodem on hpux?

[Dee_3]

Just wondering if anyone has been able to get a US Robotics 56K Faxmodem working off the w cable on either an A or L Class. Thanks, Terri Christensen.

[Ross Martin · Accepted solution]

The W Cable has connections for the Console, the UPS and the Remote Console (this is where a support link modem connects).

Officially speaking, the only modem that works on that port is the HP MT5634ZBA (it has special firmware to use on that port).

You should use an HP Cable 24542M from the modem to the Remote console (serial port).

Use the GSP's CA command and verify that the configuration matches the following:

Local Console Serial Port bit rate: 19200 bits/s
Local Console Serial Port Flow Control: Hardware
Local Console Serial Port Terminal Type: vt100
Remote Console Serial Port Modem Protocol: CCITT
Remote Console Serial Port Modem bit rate: 19200 bits/s
Remote Console Serial Port Modem Flow Control: Hardware
Remote Console Serial Port Modem Transmit Configuration Strings: Disabled
Remote Console Serial Port Modem Presence: always connected


Use the GSP ER command to set it to "session mode"

GSP> er
ER
Current remote/modem port access: Locked-out
Do you want to modify this configuration? (Y/[N]) y
Remote/modem serial port access options:
[L]ocked-out: Lock out all dial-in access.
[G]SP : Dial-in results in a GSP login.
[S]ession : O/S controls modem for dial-in and dial-out
GSP may page in any mode if modem is not in use.
O/S may use modem in Session mode only.
Please indicate the new mode for the remote/modem console serial port,
or to retain current value. Choose one of (L, G, S): s
New remote/modem port access settings will be: Session
Confirm? (Y/[N]): y
Command execution may take 25 seconds.
Current remote/modem port access: Session

Create device files for callin and callout (/dev/ttyd0p2 and /dev/cul0p2, respectively).

Edit /etc/gettydefs and add the following three lines:
(There must be a blank line above and below the entry.)


192 # B19200 SANE CS8 ISTRIP IXANY TAB3 HUPCL
# B19200 SANE CS8 ISTRIP IXANY TAB3 HUPCL
#Modem Login: #192

Note: The "192" in the above lines is a label, which must be unique in the /etc/gettydefs file. Please make sure it is not already used for another entry in the file.

Edit /etc/inittab and add the following line:

a0:234:respawn:/usr/lbin/uucp/uugetty -r -t 60 -h ttyd0p2 192

Note: The "a0" in the above line is a label, which must be unique in the /etc/inittab file. Please make sure it is not already
used anywhere else in the file.


Start the getty and verify that it is running:

# init q

At this point, you need to experiment with the USR 56K internal modem settings to get the proper response (if it is possible).

Multitech uses:
ng: at&f$BA1&e&e1&e3&e7&e14&d3&q1x0&w and sets the intittab entry to 9600 baud (which means changing some of the 19200 settings above from 19200 to 9600).

Anyway, there is a lot of experimentation that may need to take place -- HP will only support the HP MT5634ZBA, as mentioned earlier).

Hope that gets you further down the road.

Ross

[Ross Martin]

P.S. the "ng:" before the string settings is a typo.

[Dee_3]

Ross-
Thanks for the reply. I did get this to work by setting GSP's CA configuration as follows:
Local Console Serial Port bit rate: 9600 bits/s
Local Console Serial Port Flow Control: Hardwre
Local Console Serial Port Term Type: vt100
Rem Cons Serial Port Modem Protocol: Bell
Rem Cons Serial Port Modem bit rate: 19200
Rem Cons Serial Port Modem Flow Control: Hardw
Rem Cons Serial port Modem Transmit: Enabled
Rem Cons Serial Port Modem Presence: alwys con

I used the GSP ER command set to "GSP"

I had a getty process on the port and pencil switches were set with the following switches down: 1, 4, 7, 8.

Thanks again, Terri.