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Article #89

Re: Worldblazer and rts/cts flow control on hpux

#89
From: Jaime Sainez
Date: Sat, 22 Jan 1994 08:46
108 lines
5215 bytes
In article <exby.758584365@spot.Colorado.EDU> exby@spot.Colorado.EDU (J. Exby) writes:
>
>
>Well I cannot seem to find this in an HP FAQ, so apologies if I have
>missed something.
>But basically the scenario is:  I have a Telebit Worldblazer modem,
>and HP9000/817 running HPUX 9.0, with a 16channel async Multiplexer
>(full modem control part #J2094A).
>
>The modem is currently installed, working well and
>configured fine for both dialin and dialout but using XON/XOFF flow
>control.  I need to make this modem use RTS/CTS flow control and it will
>possibly be used for UUCP use also.  Currently I use simply kermit v.5
>to dialout from the HP machine.
>
>
>Here is my cable from HP Mux port to WorldBlazer rs-232:
>HP Port			Modem
>RD	2	------	3
>TD	3	------	2
>DCD	4	------	8
>DTR	6	------	20
>GND	7	------	7
>RTS	8	------	5
>DSR	20	------	6
>CTS	22	------	4
>
>The port was created via SAM as a modem port, with the CCITT field
>checked.  And without the UUCP field unchecked for now.
>
>$ ls -al /dev/*pe
>crw-rw-rw-   1 root     other     58 0x40010e Jan 14 10:44 /dev/cua1pe
>crw-rw-rw-   1 root     other     58 0x50010e Jan 14 14:02 /dev/cul1pe
>crw--w--w-   1 root     other     58 0x60010e Jan 14 10:44 /dev/ttyd1pe
>
>and here is my current modem config:
>
>/users/jae> kermit
>C-Kermit 5A(189), 30 June 93, HP 9000 Series HP-UX
>Type ? or HELP for help
>C-Kermit>set lin /dev/cul1pe
>C-Kermit>set spe 192
>/dev/cul1pe, 19200 bps
>C-Kermit>c
>Connecting to /dev/cul1pe, speed 19200.
>The escape character is Ctrl-\ (ASCII 28, FS)
>Type the escape character followed by C to get back,
>or followed by ? to see other options.
>
>OK
>
>OK
>at&v
>WorldBlazer - SA - Version LA7.04C- Active Configuration
> B1  E1  L2  M1  Q0  T   V1  X2  Y0 
>&C1 &D3 &G0 &J0 &L0 &Q0 &R3 &S0 &T4 &X0 
>S000:1   S001=0   S002=43  S003=13  S004=10  S005=8   S006=2   S007:65 
>S008=2   S009=6   S010:25  S011=70  S012=50  S018=0   S025=5   S026=1  
>S038=0   S041=0   S045:1   S046=0   S047=4   S048=0   S050=0   S051:5  
>S056=17  S057=19  S058=3   S059:7   S060=0   S061:0   S062=15  S063:1  
>S064=0   S068=255 S069=0   S090=0   S092=0   S093=8   S094=1   S100=0  
>S104=0   S105=1   S111=255 S112=1   S113=126 S114=0   S115=0   S116=0  
>S119=0   S151=4   S155=0   S180=2   S181=1   S183=25  S190=1   S191=7  
>S253=10  S254=255 S255=255 
>OK
>
>With all the background information behind us, the question boils down
>to:  for me to use RTS/CTS hardware flow control
> I change the S58 register to 2    (ats58=2)  but then
>I can not communicate with the modem at all.  No response from further
>ate  or atq commands!
>I can exit out of kermit fine but further communication is impossible.
>I am a bit suspicious about the &R  register, but it appears (to me)
>that otherwise my cable, modem config is all ok?  Unless pins 6 and 20
>on my cable are wrong...?
>
>Can anyone provide some insight into this scenario and lead me toward
>a solution path?  forever indebted for whomever can help.
>
>
>::j
>
>.....................................
>-=====-                        -=====-
>  -=-   exby@spot.Colorado.EDU   -=-
>   -                              -

	After issuing S58=2, look at the LEDs on the front of the modem.
	If you do not see RTS lit, then the cabling is defective or the 
	port is not asserting RTS. This would explain why you can no longer
	talk to the modem because the modem believes that it is flow 
	controlled. 

	-Jaime

==============================================================================
Jaime Sainez                                                           / / /
Technical Support Engineer                                      |///////|/ /
Modem/Network Products                                          |///////|/
Telebit Corporation                                             |///////|
1315 Chesapeake Terrace                                         |///////|
Sunnyvale, CA  94089                                          T E L E B I T

TEL: (408) 734-5200      INTERNET:(modem products)   modems@telebit.com 
FAX: (408) 745-3848              :(network products) support@telebit.com
BBS: (408) 745-3861      COMPUSERVE ID: 75300,2170 or  "Go Telebit"
FAXBACK: (408) 745-3310  FTPSITE: ftp.telebit.com  /pub/modems.info
==============================================================================
Technical Details
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Path: arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!europa.eng.gtefsd.com!uunet!nntp.telebit.com!sainez
References: <exby.758584365@spot.Colorado.EDU>

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From: sainez@telebit.com (Jaime Sainez)
Subject: Re: Worldblazer and rts/cts flow control on hpux
Message-ID: <CK0wD4.6H4@telebit.com>
Keywords: modems, hp mux port
Sender: news@telebit.com
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Organization: Telebit Corporation; Sunnyvale, CA, USA
References: <exby.758584365@spot.Colorado.EDU>
Date: Sat, 22 Jan 1994 08:46:15 GMT
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