Hi
I found this document. One thing I noticed, Try pressing Ctrl-B..
MODEMS
1.) INFORMATION TO GATHER:
a.) Type of modem (ie..us-robotics)(K or D class int/ext)
b.) Port, modem is on (ie..mux port 3 -> ttyd0p3)
c.) Modem Cable (800's use 40233A or 92219Q)
(700's use 24542M or Standard pc cable)
NOTE
class uses 700 cable for 9pin built-in serial connection
d.) What is the modem used for (ie..dial-in, dial-out)
2.) SETTING UP MODEM FOR DIAL-IN AND/OR DIAL-OUT:
a.)Use sam to configure modem
(sam->Peripheral Devices->Terminals&Modems->actions->Add Modem)
NOTE: Modem device files ->(ttyd->dial-in)(cul->dial-out)
b.) Choose the Mux/Serial Card
c.) Select Port
d.) Select Speed (ie..19200) (EISA mux can support > 19200)
e.) Make sure to check (Receive In-coming Calls and/or Use
Device for Calling out)
NOTE: checking "Receive In-coming Calls" will start a getty process.
3.) TROUBLESHOOTING:
a.)Modem is not answering:
* Check for getty process (ie...ps -ef|grep 0p7)
(/usr/lbin/uucp/uugetty -r -t 60 -h ttyd0p7 19200)
* Check phone number and phone line
* Check lights on modem -> must have TR and AA lit
NOTE: Some modems don't have an AA light but have a
switch for Auto Answer
* Is this the correct port?
b.) Modem connects, but no login:
* Modem has TR forced on and no getty process is running
* Wrong mux panel, using terminal mux (DDP) need modem mux (MDP)
* Flow control on the modem must be xon/xoff (software flow control)
NOTE: Hardware flow control is default for most modems
* Remote access port is locked: from the console:
ctrl b -> to get to console mode (CM prompt)
CM>ur (unlock remote)
CM>dr (disable remote)
CM>co (exit console mode)
d.) Modem connects and responds with garbage:
* Default for dial-in is 7e1 (7 databits Even parity and 1 stop bit)
* kill the getty process for the port, it should respawn and create a new one
* Baud rate issue -> use cu or kermit to reset the modem.
NOTE: Send an ATZ and it should return an OK.
If it is HP's internal modem then send an AT&D3.
4.) TESTING:
a.) Using kermit
* kermit
* set line /dev/ttyXpY (X-> instance Y-> port)
* set flow xon/xoff
* set speed BBBBB (BBBBB -> baud rate ie..19200)
* connect
* ATZ -> this should return an OK
* ctrl\c to exit connect mode
* quit (to exit kermit)
b.) Using cu
* vi /etc/uucp/Devices
* add line -> Direct culXpY - BBBBB direct
(X -> instance Y -> port, BBBBB baud rate ie..19200)
* cu -sBBBBB -lculXpY dir
NOTE: This should come back with connected.
If it comes back with line problem,
check to see if the the device files are busy.
(ie.. fuser -u /dev/culXpY check all
devices ttyXpY, ttydXpY and cuaXpY)
* ATZ -> this should return an OK
* ~. to exit
5.) CHANGING INTERNAL to EXTERNAL MODEM (D or K class)
a.)From the console -> ctrl b
* CM> ur (unlock remote)
* CM> dr (disable remote)
* CM> ca (configuration menu)
Current terminal modem identification:HP mode terminal
Do you wish to change it?(Y[N]) N
Current remote console configuration: Internal modem
Do you wish to change it?(Y[N]) Y
Select the new configuration(0=Internal Modem,1=External Modem, 2=AUTO): 1
Current remote support modem port configuration
Bit rate: 19200 bits/sec
Protocol: Bell
System Identification: id_name (ie..mum)
Do you wish to change the configuration?(Y[N]) N
NOTE: Answer no to the last question if the configuration looks ok.
