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Conference ozrock::x25_avms

Title:DEC X.25 for OpenVMS AXP
Moderator:OZROCK::MUGGERIDGE
Created:Mon Jan 18 1993
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:524
Total number of notes:2218

497.0. "PBXDI-AA vs PBXDI-AB" by KAOT01::B_CORBIN (dtn 640-7420 ) Tue Feb 11 1997 02:14

    
    Note 3736.0                   PBXDI-AA vs PBXDI-AB                      
    1 reply
    KAOT01::B_CORBIN "dtn 640-7420 "                     11 lines  
    8-FEB-1997 14:44
    
        quick question: Is their a difference in the PBXDI-AA (rs232)
        and the PBXDI-AB(V.35) --MODULES--  . The cabling is different
        of course , but are the modules the same? The PSP indicates
        they may be different, The modules have different variants on
        the part number.
    
        A customer has a -AB version and wants to know if all he needs is
        a cable swap to be able to use the card with RS232 cables.
    
        Brian Corbin
T.RTitleUserPersonal
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497.1Its a little more than a cable changeOZROCK::HARTWIGArthur Hartwig, TaN Engineering-AustraliaWed Feb 12 1997 03:0414
    Based on your description (I don't have the 'official' description
    immediately to hand) the modules are the same EXCEPT the jumpers
    are set for 2 V.35 ports OR 2 RS-232 ports. So, starting with a 
    two port V.35 module, to convert to a two port RS-232 module you can
    
    1) change cable to the two port RS-232 cable;
    
    2) change the jumpers on the board to the RS-232 setting.
    
    There are five jumpers per port to change. The jumper change procedure 
    is described in the installation manual that should have come with the
    card - the same manula that describes how to set the CSR addresses.