VAX 4000/300 start up / KA670 issues

[Glen Slick]

On Mon, Sep 14, 2020 at 10:08 AM Aaron Jackson via cctalk
<cctalk at classiccmp.org> wrote:
>
> Hi Dave,
>
> In my ignorance I incorrectly assumed the DHQ11 was a SCSI controller
> because it has compatible centronics sockets. Thinking about the name
> that was obviously wrong!

If it is a quad wide S-handle card with two 50-pin connectors it would
be an M3118 CXY08. The M3107 DHQ11 is a dual wide card with two 40-pin
connectors and the M3104 DHV11 is a quad wide card with two 40-pin
connectors. The M3118 CXY08 is functionally equivalent to the M3107
DHQ11. The M3118 CXY08 interfaces to two 4-port breakout cables (half
an octopus?).

There is also the 16-port M3118 CXA16 quad wide S-handle card with two
36-pin connectors. Those interface to the 8-port H3104 "harmonica" MMJ
blocks without modem control lines.