Probs w. M3119 CXY08 MUX on VAX VMS 7.3

[Sean Caron]

Have you tried just a "quick-n-dirty" serial cable with only TXD, RXD and
GND wired? Sometimes trying to accommodate all those modem control lines
will just lead you down the rabbit hole ... Just a thought.

Best,

Sean


On Mon, Aug 17, 2015 at 1:40 PM, Johnny Billquist <bqt at update.uu.se> wrote:

> On 2015-08-17 19:33, Holm Tiffe wrote:
>
>> Hi guys,
>>
>> I'm fiddeling around for hours now to get an M3119-YA CXY08
>> Multiplexer to work in my VAX4000/300 on VMS7.3.
>>
>> The Card is properly detected it seems..
>>
>>
>> Device                  Device           Error
>>   Name                   Status           Count
>> FTA0:                   Offline              0
>> OPA0:                   Online               0
>> TNA0:                   Offline              0
>> TNA2:                   Online               0
>> TXA0:                   Online               4
>> TXA1:                   Online               0
>> TXA2:                   Online               0
>> TXA3:                   Online               7
>> TXA4:                   Online               0
>> TXA5:                   Online               0
>> TXA6:                   Online               0
>> TXA7:                   Online               0
>> VTA0:                   Offline              0
>> .
>>
>> SYSGEN>  SH/CONF
>>
>>          System CSR and Vectors on 17-AUG-2015 19:17:01.69
>>
>>   Name: PAA  Units: 1  Nexus:0    (CI )
>>   Name: PAB  Units: 1  Nexus:1    (CI )
>>   Name: EZA  Units: 4  Nexus:2    (NI )
>>   Name: PUA  Units: 1  Nexus:3    (UBA) CSR: 772150  Vector1: 154
>> Vector2: 000
>>   Name: PTA  Units: 1  Nexus:3    (UBA) CSR: 774500  Vector1: 260
>> Vector2: 000
>>   Name: PTB  Units: 1  Nexus:3    (UBA) CSR: 760404  Vector1: 300
>> Vector2: 000
>>   Name: TXA  Units: 8  Nexus:3    (UBA) CSR: 760440  Vector1: 310
>> Vector2: 314
>> SYSGEN>
>>
>> ..and it is the first card left of the CPU in the QBUS Backplane followed
>> from an working CQD200/TM.
>> AThe DIP Switches are set like the standard in some CXY08 Manual, the MUX
>> is set to DHU11 programming model.
>> I've first tried to connect a serial line pronter with no luck so I've
>> tried to connect a 2nd VT420 and have no luck again. I know of the meaning
>> of the several modem control signals and how they should be wired, have
>> connected such a "null modem RS232 device" that shorts 4 to 5 and 6+8 to
>> 20. I've tried to copy data from a file to the lines and I have shorted
>> 2+3
>> of the Muxer Pins from the line and done a SET HOST/DTE/ESC=E TXA0:,allt
>> that ends with an timeout writing to the lines and the lines acting
>> identically, regardles which one I try to use.
>>
>> $ copy SYSTARTUP_VMS.COM txa3:
>> %COPY-E-WRITEERR, error writing TXA3:[]SYSTARTUP_VMS.COM;5
>> -RMS-F-WER, file write error
>> -SYSTEM-F-TIMEOUT, device timeout
>> %COPY-W-NOTCMPLT, SYS$COMMON:[SYSMGR]SYSTARTUP_VMS.COM;5 not completely
>> copied
>>
>> $ sh term txa3
>> Terminal: _TXA3:      Device_Type: Unknown       Owner: No Owner
>>
>>     Input:    9600     LFfill:  0      Width:  80      Parity: None
>>     Output:   9600     CRfill:  0      Page:   24
>>
>> Terminal Characteristics:
>>     Interactive        Echo               Type_ahead         No Escape
>>     No Hostsync        TTsync             Lowercase          No Tab
>>     Wrap               Scope              No Remote          No Eightbit
>>     Broadcast          No Readsync        No Form            Fulldup
>>     Modem              No Local_echo      Autobaud           No Hangup
>>     No Brdcstmbx       No DMA             No Altypeahd       Set_speed
>>     No Commsync        Line Editing       Overstrike editing No Fallback
>>     No Dialup          No Secure server   No Disconnect      No Pasthru
>>     No Syspassword     No SIXEL Graphics  No Soft Characters No Printer
>> Port
>>     Numeric Keypad     No ANSI_CRT        No Regis           No Block_mode
>>     No Advanced_video  No Edit_mode       No DEC_CRT         No DEC_CRT2
>>     No DEC_CRT3        No DEC_CRT4        No DEC_CRT5        No Ansi_Color
>>     VMS Style Input
>> $
>>
>> Depending on set term/modem or set term/printer the modem control lines
>> are
>> changing the level, that's ok. But I can't get a single character printed
>> to the terminal which I have verified with an USB to serial cable already,
>> the terminal is ok and I have an LED-Analyzer for RS232 between the RS232
>> Plugs..
>>
>> Since I'm a total VMS Noob I now have some Questions:
>>
>> .. have I missed something?
>> .. is the CXY08 bad?
>> .. what could I try next?
>> ...is there some diagnosting software for the CXY08 existing for VMS
>>     and if yes, where can I get it?
>>
>> Thanks in advance,
>>
>
> Since you have an error count in there, I would expect there to be
> something in the error log. Might be worth checking what it says...
>
> Other than that, I have not tried that specific hardware, but I have seen
> similar issues when DMA have been non-working. Are you sure the card is in
> the correct slot? I assume you know about qbus bus continuation, as well as
> the actual backplane layout, and possibly jumpers that might need to be put
> one way or another depending on the type of slot, if it is a quad size
> card...
>
>         Johnny
>
>